IR 05000346/2005009: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
(Created page by program invented by StriderTol)
Line 19: Line 19:


=Text=
=Text=
{{#Wiki_filter:February 1, 2006 EA-03-0214 Mr. Mark Vice President-Nuclear, Davis-Besse
{{#Wiki_filter:ary 1, 2006


FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station
==SUBJECT:==
 
DAVIS-BESSE NUCLEAR POWER STATION NRC INTEGRATED INSPECTION REPORT 05000346/2005009
5501 North State Route 2
 
Oak Harbor, OH 43449-9760SUBJECT:DAVIS-BESSE NUCLEAR POWER STATION NRC INTEGRATED INSPECTION REPORT 05000346/2005009


==Dear Mr. Bezilla:==
==Dear Mr. Bezilla:==
On December 31, 2005, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your Davis-Besse Nuclear Power Station. The enclosed inspection report
On December 31, 2005, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your Davis-Besse Nuclear Power Station. The enclosed inspection report documents the inspection findings which were discussed on January 6, 2006, with you and other members of your staff.
 
documents the inspection findings which were discussed on January 6, 2006, with you


and other members of your staff.
The inspection examined activities conducted under your license as they relate to safety and compliance with the Commissions rules and regulations and with the conditions of your license.


The inspection examined activities conducted under your license as they relate to safety and compliance with the Commission's rules and regulations and with the conditions of your license.
The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel.


The inspectors reviewed selected procedures and records, observed activities, and interviewed
The report documents one NRC identified finding and one self-revealing finding of very low safety significance. One of these findings was determined to involve a violation of NRC requirements. Additionally, three licensee-identified violations which were determined to be of very low safety significance are listed in this report. However, because of the low safety significance and because they are entered into your corrective action program, the NRC is treating these violations as non-cited violations (NCVs) consistent with Section VI.A.1 of the NRC Enforcement Policy. If you contest any NCV in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D.C. 20555-0001; with copies to the Regional Administrator Region III, 2443 Warrenville Road, Suite 210, Lisle, IL 60532-4352; the Director, Office of Enforcement, United States Nuclear Regulatory Commission, Washington, D.C. 20555-001; and the NRC Resident Inspector at Davis-Besse. In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its Enclosure will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
 
personnel.
 
The report documents one NRC identified finding and one self-revealing finding of very low safety significance. One of these findings was determined to involve a violation of
 
NRC requirements. Additionally, three licensee-identified violations which were determined to
 
be of very low safety significance are listed in this report. However, because of the low safety
 
significance and because they are entered into your corrective action program, the NRC is
 
treating these violations as non-cited violations (NCVs) consistent with Section VI.A.1 of the
 
NRC Enforcement Policy. If you contest any NCV in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the
 
U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D.C. 20555-0001; with copies to the Regional Administrator Region III, 2443 Warrenville Road, Suite 210, Lisle, IL 60532-4352; the Director, Office of Enforcement, United States Nuclear
 
Regulatory Commission, Washington, D.C. 20555-001; and the NRC Resident Inspector at Davis-Besse.
 
M. Bezilla-2-In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its Enclosure will be available electronically for public inspection in the NRC Public Document
 
Room or from the Publicly Available Reco rds (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).


Sincerely,
Sincerely,
/RA/Christine A. Lipa, Chief Projects Branch 4
/RA/
 
Christine A. Lipa, Chief Projects Branch 4 Division of Reactor Projects Docket No. 50-346 License No. NPF-3 Enclosure: Inspection Report 05000346/2005009 w/Attachment: Supplemental Information cc w/encl: The Honorable Dennis Kucinich G. Leidich, President - FENOC J. Hagan, Senior Vice President of Operations and Chief Operating Officer Director, Plant Operations Manager - Regulatory Compliance D. Jenkins, Senior Attorney, FirstEnergy Ohio State Liaison Officer R. Owen, Administrator, Ohio Department of Health Public Utilities Commission of Ohio President, Board of County Commissioners of Lucas County President, Ottawa County Board of Commissioners
Division of Reactor Projects Docket No. 50-346 License No. NPF-3Enclosure:Inspection Report 05000346/2005009 w/Attachment: Supplemental Informationcc w/encl:The Honorable Dennis Kucinich G. Leidich, President - FENOC
 
J. Hagan, Senior Vice President of
 
Operations and Chief Operating Officer
 
Director, Plant Operations
 
Manager - Regulatory Compliance
 
D. Jenkins, Senior Attorney, FirstEnergy
 
Ohio State Liaison Officer
 
R. Owen, Administrator, Ohio Department of Health
 
Public Utilities Commission of Ohio
 
President, Board of County Commissioners
 
of Lucas County
 
President, Ottawa County Board of Commissioners


=SUMMARY OF FINDINGS=
=SUMMARY OF FINDINGS=
Line 92: Line 42:
Weather, Maintenance Effectiveness.
Weather, Maintenance Effectiveness.


This report covers a 13 week period of resident inspection. The inspection was conducted by Region III inspectors and resident inspectors. Two Green findings, one of which was a non-cited violation (NCV), were identified. The significance of most findings is indicated by their color (Green, White, Yellow, Red) using Inspection Manual Chapter (IMC) 0609, "Significance
This report covers a 13 week period of resident inspection. The inspection was conducted by Region III inspectors and resident inspectors. Two Green findings, one of which was a non-cited violation (NCV), were identified. The significance of most findings is indicated by their color (Green, White, Yellow, Red) using Inspection Manual Chapter (IMC) 0609, Significance Determination Process (SDP). Findings for which the SDP does not apply may be Green or be assigned a severity level after NRC management review. The NRCs program for overseeing the safe operation of commercial nuclear power reactors is described in NUREG-1649, Reactor Oversight Process, Revision 3, dated July 2000.
 
Determination Process" (SDP). Findings for which the SDP does not apply may be Green or be assigned a severity level after NRC management review. The NRC's program for overseeing the safe operation of commercial nuclear power reactors is described in NUREG-1649, "Reactor
 
Oversight Process," Revision 3, dated July 2000.


===A. NRC-Identified and Self-Revealing Findings===
===NRC-Identified and Self-Revealing Findings===


===Cornerstone: Initiating Events===
===Cornerstone: Initiating Events===
Line 104: Line 50:
A finding of very low safety significance was identified by the inspectors for failure to control loose materials, located immediately adjacent to the switchyard, which could be carried into the switchyard by high winds. Once identified the licensee took action to relocate the material.
A finding of very low safety significance was identified by the inspectors for failure to control loose materials, located immediately adjacent to the switchyard, which could be carried into the switchyard by high winds. Once identified the licensee took action to relocate the material.


The issue was more than minor because, if left uncontrolled, the loose items could impact the proper operation of the switchyard and in turn lead to a more significant safety concern. The issue was of very low safety significance because the finding did not contribute to the likelihood of a primary or secondary system loss of coolant accident initiator; the finding did not contribute to both the likelihood of a reactor trip and the likelihood that mitigation equipment or functions will not be available; and the finding did not increase the likelihood of a fire or internal or external flooding. The issue was not considered a violation of regulatory requirements because it did not affect safety-related structures, systems, or components. (Section 1R01)
The issue was more than minor because, if left uncontrolled, the loose items could impact the proper operation of the switchyard and in turn lead to a more significant safety concern. The issue was of very low safety significance because the finding did not contribute to the likelihood of a primary or secondary system loss of coolant accident initiator; the finding did not contribute to both the likelihood of a reactor trip and the likelihood that mitigation equipment or functions will not be available; and the finding did not increase the likelihood of a fire or internal or external flooding. The issue was not considered a violation of regulatory requirements because it did not affect safety-related structures, systems, or components. (Section 1R01)


===Cornerstone: Barrier Integrity===
===Cornerstone: Barrier Integrity===
: '''Green.'''
: '''Green.'''
A Green self-revealing non-cited violation (NCV) of 10 CFR 50, Appendix B, Criterion III, was identified for the licensee (1) failing to fully understand the actual system configuration during and after a syst em modification, (2) installing incorrect solenoid valves in the system during the engineering change implementation, and (3) not performing adequate post modification testing to verify system functionality prior to returning the channel 1 and channel 2 Containment Gas Analyzers to service. The failure resulted in the plant being operated in Mode 1 and Mode 2 with two hydrogen analyzers inoperable in excess of the allowed Technical Specification outage time. The licensee restored the Analyzers to an operable status and entered the issue into the corrective action program for resolution.
A Green self-revealing non-cited violation (NCV) of 10 CFR 50, Appendix B,
Criterion III, was identified for the licensee (1) failing to fully understand the actual system configuration during and after a system modification, (2) installing incorrect solenoid valves in the system during the engineering change implementation, and (3) not performing adequate post modification testing to verify system functionality prior to returning the channel 1 and channel 2 Containment Gas Analyzers to service. The failure resulted in the plant being operated in Mode 1 and Mode 2 with two hydrogen analyzers inoperable in excess of the allowed Technical Specification outage time. The licensee restored the Analyzers to an operable status and entered the issue into the corrective action program for resolution.


The finding is greater than minor because it: (1) involved the configuration control attribute of the Barrier Integrity Cornerstone; and (2) affected the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. This finding is unrelated to structures, systems and components that ar e needed to prevent accidents from leading to core damage. The inspectors used Inspection Manual Chapter (IMC) 0609,
The finding is greater than minor because it: (1) involved the configuration control attribute of the Barrier Integrity Cornerstone; and (2) affected the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. This finding is unrelated to structures, systems and components that are needed to prevent accidents from leading to core damage. The inspectors used Inspection Manual Chapter (IMC) 0609,
"Significance Determination Process," Appendix H, Containment SDP to evaluate this finding. Based on this evaluation, the finding has very low safety significance. The cause of the finding is related to the cross-cutting area of human performance.
  "Significance Determination Process," Appendix H, Containment SDP to evaluate this finding. Based on this evaluation, the finding has very low safety significance. The cause of the finding is related to the cross-cutting area of human performance.


(Section 1R12)B. Licensee-Identified Findings Violations of very low safety significance, which were identified by the licensee, have been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensee's corrective action program. The violations and corrective actions are listed in Section 4OA7 of this report.
  (Section 1R12)
 
B. Licensee-Identified Findings Violations of very low safety significance, which were identified by the licensee, have been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensees corrective action program. The violations and corrective actions are listed in Section 4OA7 of this report.
3


=REPORT DETAILS=
=REPORT DETAILS=
Summary of Plant Status At the beginning of the inspection period, the plant was operating at approximately 100 percent power. The licensee conducted a short planned outage from October 28, 2005, until


October 31, 2005, to correct the cause of reactor coolant system identified leakage. The
===Summary of Plant Status===


licensee also reduced power to approximately 60 percent to support main feed pump 2
At the beginning of the inspection period, the plant was operating at approximately 100 percent power. The licensee conducted a short planned outage from October 28, 2005, until October 31, 2005, to correct the cause of reactor coolant system identified leakage. The licensee also reduced power to approximately 60 percent to support main feed pump 2 maintenance from November 26, 2005, until November 28, 2005.


maintenance from November 26, 2005, until November 28, 2005.
Also during this inspection period, several brief power reductions of less than 10 percent also occurred. On each occasion, upon completion of the planned testing or maintenance, power was restored to approximately 100 percent. The plant operated at approximately 100 percent power for the remainder of the inspection period.


Also during this inspection period, several brief power reductions of less than 10 percent also occurred. On each occasion, upon completion of the planned testing or maintenance, power
==REACTOR SAFETY==
 
Cornerstones: Initiating Events, Mitigating Systems, and Barrier Integrity
was restored to approximately 100 percent. The plant operated at approximately 100 percent
 
power for the remainder of the inspection period.1.REACTOR SAFETYCornerstones: Initiating Events, Mitigating Systems, and Barrier Integrity
{{a|1R01}}
{{a|1R01}}
==1R01 Adverse Weather==
==1R01 Adverse Weather==
{{IP sample|IP=IP 71111.01}}
{{IP sample|IP=IP 71111.01}}
.1Tornado and High Wind Preparation
===.1 Tornado and High Wind Preparation===


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors reviewed applicable licensee procedures and performed a walkdown of areas immediately adjacent to the Davis-Besse switchyard and exterior portions of the
The inspectors reviewed applicable licensee procedures and performed a walkdown of areas immediately adjacent to the Davis-Besse switchyard and exterior portions of the protected area. The inspectors evaluated the licensees preparations for adverse weather, including conditions that could result from tornados and high winds. The inspectors focused on plant specific design features for the systems and implementation of the procedures for responding to or mitigating the effects of adverse weather. The inspectors also determined whether operator actions specified by plant specific procedures were appropriate.


protected area. The inspectors evaluated the licensee's preparations for adverse
The inspectors evaluated readiness for seasonal susceptibilities for the following systems:
 
* the switchyard and immediately adjacent areas; and
weather, including conditions that could result from tornados and high winds. The
* exterior portions of the protected area.
 
inspectors focused on plant specific design features for the systems and implementation
 
of the procedures for responding to or mitigating the effects of adverse weather. The
 
inspectors also determined whether operator actions specified by plant specific
 
procedures were appropriate.
 
The inspectors evaluated readiness for seasonal susceptibilities for the followingsystems: *the switchyard and immediately adjacent areas; and*exterior portions of the protected area.


This constitutes one sample.
This constitutes one sample.


====b. Findings====
====b. Findings====
Introduction The inspectors identified a Green finding for the licensee's failure to control materials in the areas immediately adjacent to the Davis-Besse switchyard. Specifically, the
Introduction The inspectors identified a Green finding for the licensees failure to control materials in the areas immediately adjacent to the Davis-Besse switchyard. Specifically, the inspectors identified multiple wooden pallets stacked next to the switchyard fence, a large amount of extraneous loose materials located near the north side of the switchyard, loose material located adjacent to service building 2, and several loose small metal plates in the vicinity of the spare transformers also located near the east side of the switchyard. Once identified the licensee took action to relocate the material. No violation of regulatory requirements occurred.
 
inspectors identified multiple wooden pallets stacked next to the switchyard fence, a 4 large amount of extraneous loose materials located near the north side of the switchyard, loose material located adjacent to service building 2, and several loose small
 
metal plates in the vicinity of the spare transformers also located near the east side of
 
the switchyard. Once identified the licensee took action to relocate the material. No
 
violation of regulatory requirements occurred.
 
Description On November 10, 2005, the inspectors conducted a walkdown of the areas immediately adjacent to the switchyard and the exterior portions of the protected area in the vicinity of
 
the large station transformers to assess the licensee's preparations to preclude or
 
minimize potential damage from high velocity winds associated with severe
 
thunderstorms or tornados. During the walkdown of the areas immediately adjacent to
 
the switchyard, the inspectors noted multiple wooden pallets stacked next to the
 
switchyard fence, a large amount of extraneous loose materials located near the north
 
side of the switchyard, loose material located adjacent to service building 2, and several
 
loose small metal plates in the vicinity of the spare transformers also located near the
 
east side of the switchyard. The inspectors concluded that high velocity winds combined
 
with the close proximity of these materials to the switchyard increased the potential to
 
lose offsite power sources.
 
The licensee has a reactive procedure for tornado warnings which directed plant personnel to inspect the Protected Area and switchyard for potential missiles and reduce
 
missile potentials where practical. The inspectors did not identify any procedures to
 
prepare for adverse weather conditions with respect to tornado and high wind conditions, nor did the inspectors identify any preparatory procedures to control loose materials in
 
the protected area or switchyard. The inspectors found no specified actions or proactive
 
elements that required the licensee to minimize the number of missile hazards prior to
 
seasonal susceptibilities to occurrences of high winds.
 
Licensee Procedure NG-DB-00215, "Material Readiness and Housekeeping Inspection Program," Revision 06, established responsibilities and criteria for the performance of
 
plant material and housekeeping readiness inspections. The procedure did not address
 
the inspection of out-of-plant material storage areas. Licensee procedure RA-EP-02810, "Tornado," Revision 03, discussed securing loose gear and material; however, this
 
procedure would only be used if the plant was notified of a tornado watch or tornado
 
warning. Procedure RA-EP-02810 did not establish criteria for what constituted loose
 
gear or material. Additionally, the licensee's Quality Assurance Program Manual
 
commits the licensee to American National Standards Institute (ANSI) N45.2.3-1973, "Housekeeping During the Construction Phase of Nuclear Power Plants" during the plant
 
operational phase. This standard required scheduled inspections of work areas and
 
construction practices to ensure protection of installed equipment from weather-related
 
movement of stored items.
 
Analysis 5 The inspectors reviewed this finding using the guidance contained in Appendix B, "Issue Disposition Screening," of Inspection Manual Chapter 0612, "Power Reactor Inspection
 
Reports."  The inspectors determined that the licensee's failure to control material near
 
risk significant equipment or to appropriately apply the standards contained within
 
ANSI N45.2.3-1973 was a performance deficiency which affected the Initiating Events
 
cornerstone. The inspectors determined that the finding was more than minor because, if left uncontrolled, the loose items located immediately adjacent to the switchyard would
 
become a more significant safety concern. The inspectors determined that the finding
 
warranted evaluation using the Significance Determination Process because the finding
 
was associated with an increase in the likelihood of an initiating event.
 
The inspectors evaluated the finding using IMC 0609, Appendix A, Attachment 1,"Significance Determination of Reactor Inspection Findings for At-Power Situations."
 
Using the Phase 1 Significance Determination Process worksheet for the initiating event


cornerstone, transient initiator contributor, the inspectors determined that the finding did
Description On November 10, 2005, the inspectors conducted a walkdown of the areas immediately adjacent to the switchyard and the exterior portions of the protected area in the vicinity of the large station transformers to assess the licensees preparations to preclude or minimize potential damage from high velocity winds associated with severe thunderstorms or tornados. During the walkdown of the areas immediately adjacent to the switchyard, the inspectors noted multiple wooden pallets stacked next to the switchyard fence, a large amount of extraneous loose materials located near the north side of the switchyard, loose material located adjacent to service building 2, and several loose small metal plates in the vicinity of the spare transformers also located near the east side of the switchyard. The inspectors concluded that high velocity winds combined with the close proximity of these materials to the switchyard increased the potential to lose offsite power sources.


not contribute to the likelihood of a primary or secondary system loss of coolant accident
The licensee has a reactive procedure for tornado warnings which directed plant personnel to inspect the Protected Area and switchyard for potential missiles and reduce missile potentials where practical. The inspectors did not identify any procedures to prepare for adverse weather conditions with respect to tornado and high wind conditions, nor did the inspectors identify any preparatory procedures to control loose materials in the protected area or switchyard. The inspectors found no specified actions or proactive elements that required the licensee to minimize the number of missile hazards prior to seasonal susceptibilities to occurrences of high winds.


initiator; the finding did not contribute to both the likelihood of a reactor trip and the
Licensee Procedure NG-DB-00215, Material Readiness and Housekeeping Inspection Program, Revision 06, established responsibilities and criteria for the performance of plant material and housekeeping readiness inspections. The procedure did not address the inspection of out-of-plant material storage areas. Licensee procedure RA-EP-02810, Tornado, Revision 03, discussed securing loose gear and material; however, this procedure would only be used if the plant was notified of a tornado watch or tornado warning. Procedure RA-EP-02810 did not establish criteria for what constituted loose gear or material. Additionally, the licensees Quality Assurance Program Manual commits the licensee to American National Standards Institute (ANSI) N45.2.3-1973, Housekeeping During the Construction Phase of Nuclear Power Plants during the plant operational phase. This standard required scheduled inspections of work areas and construction practices to ensure protection of installed equipment from weather-related movement of stored items.


likelihood that mitigation equipment or functions would not be available; and the finding
Analysis The inspectors reviewed this finding using the guidance contained in Appendix B, Issue Disposition Screening, of Inspection Manual Chapter 0612, Power Reactor Inspection Reports. The inspectors determined that the licensees failure to control material near risk significant equipment or to appropriately apply the standards contained within ANSI N45.2.3-1973 was a performance deficiency which affected the Initiating Events cornerstone. The inspectors determined that the finding was more than minor because, if left uncontrolled, the loose items located immediately adjacent to the switchyard would become a more significant safety concern. The inspectors determined that the finding warranted evaluation using the Significance Determination Process because the finding was associated with an increase in the likelihood of an initiating event.


did not increase the likelihood of a fire or internal or external flooding. Therefore, the
The inspectors evaluated the finding using IMC 0609, Appendix A, Attachment 1, Significance Determination of Reactor Inspection Findings for At-Power Situations.


finding was determined to be of very low safety significance (Green).
Using the Phase 1 Significance Determination Process worksheet for the initiating event cornerstone, transient initiator contributor, the inspectors determined that the finding did not contribute to the likelihood of a primary or secondary system loss of coolant accident initiator; the finding did not contribute to both the likelihood of a reactor trip and the likelihood that mitigation equipment or functions would not be available; and the finding did not increase the likelihood of a fire or internal or external flooding. Therefore, the finding was determined to be of very low safety significance (Green).


Enforcement The inspectors concluded that procedures were inadequate relative to applying housekeeping standards to risk significant equipment. Because no 10 CFR 50, Appendix B, components were impacted by the finding (FIN 05000346/2005009-01), no
Enforcement The inspectors concluded that procedures were inadequate relative to applying housekeeping standards to risk significant equipment. Because no 10 CFR 50, Appendix B, components were impacted by the finding (FIN 05000346/2005009-01), no violation of regulatory requirements occurred. The licensee included this finding in their corrective action program as CR 06-00027.
 
violation of regulatory requirements occurred. The licensee included this finding in their
 
corrective action program as CR 06-00027.


===.2 Cold Weather Preparations===
===.2 Cold Weather Preparations===


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors observed the implementation of compensatory measures, contained in procedure DP-OP-06913, "Seasonal Plant Preparation Checklist," Revision 11, on
The inspectors observed the implementation of compensatory measures, contained in procedure DP-OP-06913, Seasonal Plant Preparation Checklist, Revision 11, on several occasions during this inspection period when frazil ice was present at the service water intake crib. The compensatory measures include increased monitoring of service water fore-bay and lake water levels and the use of portable equipment to provide an alternate means of pumping water from Lake Erie to the service water intake canal.
 
several occasions during this inspection period when frazil ice was present at the service
 
water intake crib. The compensatory measures include increased monitoring of service
 
water fore-bay and lake water levels and the use of portable equipment to provide an
 
alternate means of pumping water from Lake Erie to the service water intake canal.


This constitutes one sample.
This constitutes one sample.
Line 276: Line 114:
No findings of significance were identified.
No findings of significance were identified.
{{a|1R04}}
{{a|1R04}}
==1R04 Equipment Alignment (71111.04Q)==
==1R04 Equipment Alignment==
{{IP sample|IP=IP 71111.04Q}}


====a. Inspection Scope====
====a. Inspection Scope====
6 The inspectors conducted a partial walkdown of the decay heat system train 1 subsequent to system restoration following per formance of the decay heat system train 2 preventive maintenance activities on November 15, 2005. The inspectors reviewed
The inspectors conducted a partial walkdown of the decay heat system train 1 subsequent to system restoration following performance of the decay heat system train 2 preventive maintenance activities on November 15, 2005. The inspectors reviewed whether the system was correctly aligned to perform its designed safety function. The inspectors referenced licensee system valve line-up documents and system drawings during the walkdown. The walkdown included selected switch and valve position checks, and verification of electrical power availability to critical components. Finally, the inspectors evaluated other elements, such as material condition, housekeeping, and component labeling. The documents referenced during the performance of the walkdown are listed in the attached List of Documents Reviewed.
 
whether the system was correctly aligned to perform its designed safety function. The inspectors referenced licensee system va lve line-up documents and system drawings during the walkdown. The walkdown included selected switch and valve position
 
checks, and verification of electrical power availability to critical components. Finally, the inspectors evaluated other elements, such as material condition, housekeeping, and
 
component labeling. The documents referenced during the performance of the
 
walkdown are listed in the attached List of Documents Reviewed.


This constitutes one sample.
This constitutes one sample.
Line 294: Line 125:
No findings of significance were identified.
No findings of significance were identified.
{{a|1R05}}
{{a|1R05}}
==1R05 Fire Protection.1Area Inspections (71111.05Q)==
==1R05 Fire Protection==
 
===.1 Area Inspections===
{{IP sample|IP=IP 71111.05Q}}


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors conducted fire protection inspections focused on the availability, accessibility, and condition of fire fighting equipment, the control of transient
The inspectors conducted fire protection inspections focused on the availability, accessibility, and condition of fire fighting equipment, the control of transient combustibles, and the condition and status of installed fire barriers. The inspectors selected fire areas for inspection based on their overall contribution to internal fire risk, as documented in the Individual Plant Examination of External Events, and their potential to impact equipment which could initiate a plant transient. Inspectors checked that fire hoses and extinguishers were in their designated locations and available for immediate use, that fire detectors and sprinklers were unobstructed, that transient material loading was within the analyzed limits, and that fire doors, dampers, and penetration seals appeared to be in satisfactory condition.


combustibles, and the condition and status of installed fire barriers. The inspectors
The following areas were inspected:
 
* electrical penetration room 2 (Fire Area DC, Room 427);
selected fire areas for inspection based on their overall contribution to internal fire risk, as documented in the Individual Plant Examination of External Events, and their
* auxiliary building main corridor elevation 603 feet (Fire Area V, Room 404);
 
* diesel fire pump room (Fire Area BE-1, Room 51);
potential to impact equipment which could initiate a plant transient. Inspectors checked
* safety battery rooms (Fire Areas X & Y, Rooms 428A & 429B);
 
* emergency diesel 1 room (Fire Area K, Room 318); and
that fire hoses and extinguishers were in their designated locations and available for
* electrical penetration room 1 (Fire Area DG, Room 402).
 
immediate use, that fire detectors and sprinklers were unobstructed, that transient
 
material loading was within the analyzed limits, and that fire doors, dampers, and


penetration seals appeared to be in satisfactory condition.
This constitutes six samples.
 
The following areas were inspected:
*electrical penetration room 2 (Fire Area DC, Room 427);*auxiliary building main corridor elevation 603 feet (Fire Area V, Room 404);
*diesel fire pump room (Fire Area BE-1, Room 51);
*safety battery rooms (Fire Areas X & Y, Rooms 428A & 429B);
*emergency diesel 1 room (Fire Area K, Room 318); and
*electrical penetration room 1 (Fire Area DG, Room 402).This constitutes six samples.


====b. Findings====
====b. Findings====
No findings of significance were identified.
No findings of significance were identified.


7.2Fire Brigade Drill (71111.05A)
===.2 Fire Brigade Drill===
{{IP sample|IP=IP 71111.05A}}


====a. Inspection Scope====
====a. Inspection Scope====
On October 7, 2005, the inspectors observed a fire brigade activation which was required for response to a fire detection alarm in emergency diesel generator 2 room.
On October 7, 2005, the inspectors observed a fire brigade activation which was required for response to a fire detection alarm in emergency diesel generator 2 room.


The inspectors determined whether protective clothing/turnout gear was properly
The inspectors determined whether protective clothing/turnout gear was properly donned; the fire area was entered in a controlled manner; response times were within licensee procedural guidelines; sufficient fire fighting equipment was brought to the scene by the fire brigade to properly perform their firefighting duties; and, the fire brigade leaders fire fighting directions were thorough, clear, and effective.
 
donned; the fire area was entered in a controlled manner; response times were within
 
licensee procedural guidelines; sufficient fire fighting equipment was brought to the
 
scene by the fire brigade to properly perform their firefighting duties; and, the fire brigade
 
leader's fire fighting directions were thorough, clear, and effective.


This constitutes one sample.
This constitutes one sample.
Line 343: Line 159:
No findings of significance were identified.
No findings of significance were identified.
{{a|1R11}}
{{a|1R11}}
==1R11 Licensed Operator Requalification Program (71111.11).1Annual Operating Test Results==
==1R11 Licensed Operator Requalification Program==
{{IP sample|IP=IP 71111.11}}
===.1 Annual Operating Test Results===


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors reviewed the overall pass/fail results of the annual operating examination which consisted of Job Performance Measure (JPM) and simulator operating tests (required to be given per 10 CFR 55.59(a)(2)) administered by the licensee. The
The inspectors reviewed the overall pass/fail results of the annual operating examination which consisted of Job Performance Measure (JPM) and simulator operating tests (required to be given per 10 CFR 55.59(a)(2)) administered by the licensee. The operating testing was conducted in October, November, and December 2005. The results were compared with the significance determination process in accordance with NRC Manual Chapter 0609I, Operator Requalification Human Performance Significance Determination Process (SDP).
 
operating testing was conducted in October, November, and December 2005. The
 
results were compared with the significance determination process in accordance with
 
NRC Manual Chapter 0609I, "Operator Requalification Human Performance Significance
 
Determination Process (SDP)."


This constitutes one sample.
This constitutes one sample.


====b. Findings====
====b. Findings====
No findings of significance were identified..2Resident Inspector Quarterly Review
No findings of significance were identified.
 
===.2 Resident Inspector Quarterly Review===


====a. Inspection Scope====
====a. Inspection Scope====
8 On October 25, 2005, the inspectors observed an operating crew during simulator annual requalification training and attended the post-session licensee controller critique.
On October 25, 2005, the inspectors observed an operating crew during simulator annual requalification training and attended the post-session licensee controller critique.


The inspectors reviewed crew performance in the areas of:*clarity and formality of communications;*ability to take timely action in a safe direction;
The inspectors reviewed crew performance in the areas of:
*ability to prioritize, interpret and respond to alarms;
* clarity and formality of communications;
*procedure use;
* ability to take timely action in a safe direction;
*oversight and direction from supervisors; and
* ability to prioritize, interpret and respond to alarms;
*group dynamics.
* procedure use;
* oversight and direction from supervisors; and
* group dynamics.


Crew performance in these areas was compared to licensee management expectations and guidelines as presented in Davis-Besse operational and administrative procedures.
Crew performance in these areas was compared to licensee management expectations and guidelines as presented in Davis-Besse operational and administrative procedures.


The operational scenario included challenges associated with the rod control system, a
The operational scenario included challenges associated with the rod control system, a reactor coolant pump, and the ability to control the cool down of the reactor coolant system.


reactor coolant pump, and the ability to control the cool down of the reactor coolant system.This constitutes one sample.
This constitutes one sample.


====b. Findings====
====b. Findings====
No findings of significance were identified.
No findings of significance were identified.
{{a|1R12}}
{{a|1R12}}
==1R12 Maintenance Effectiveness (71111.12)==
==1R12 Maintenance Effectiveness==
{{IP sample|IP=IP 71111.12}}


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors reviewed the licensee's handling of performance issues associated with the:*station and instrument air system; *control room emergency ventilation syst em with emphasis on the evaluation of control room tracer gas test results; and*containment gas monitoring system.
The inspectors reviewed the licensees handling of performance issues associated with the:
* station and instrument air system;
* control room emergency ventilation system with emphasis on the evaluation of control room tracer gas test results; and
* containment gas monitoring system.


The reviews consisted of evaluating the following activities:
The reviews consisted of evaluating the following activities:
*The licensee's use of the condition report process in identifying deficiencies and issues with system equipment;*Whether equipment performance issues were correctly categorized per the system's scoping sheet performance criteria for reliability;*Whether the licensee was effectively tracking key parameters and identifying system trends and monitoring for signs of component failures;*Appropriateness of goals and corrective actions associated with long-term reliability; *Whether the physical condition of the system appeared consistent with status as reflected in condition reports and open work orders;*Whether the licensee's corrective actions included extent of condition; and 9*Appropriateness of maintenance rule system status classification with emphasis on whether current reclassification appeared appropriate for the equipment's
* The licensees use of the condition report process in identifying deficiencies and issues with system equipment;
 
* Whether equipment performance issues were correctly categorized per the systems scoping sheet performance criteria for reliability;
recent history.
* Whether the licensee was effectively tracking key parameters and identifying system trends and monitoring for signs of component failures;
* Appropriateness of goals and corrective actions associated with long-term reliability;
* Whether the physical condition of the system appeared consistent with status as reflected in condition reports and open work orders;
* Whether the licensees corrective actions included extent of condition; and
* Appropriateness of maintenance rule system status classification with emphasis on whether current reclassification appeared appropriate for the equipments recent history.


This constitutes three samples.
This constitutes three samples.
Line 394: Line 216:


=====Introduction.=====
=====Introduction.=====
A self-revealing violation of 10 CFR 50, Appendix B, Criterion III, was identified during the evaluation of a failed periodic functional check associated with the
A self-revealing violation of 10 CFR 50, Appendix B, Criterion III, was identified during the evaluation of a failed periodic functional check associated with the containment hydrogen analyzer channel 1. The evaluation identified that during an engineering change which modified containment hydrogen analyzer channels 1 and 2, the licensee failed to: 1) identify the presence of check valves located in the drain lines for each of the analyzers moisture separators, 2) install the correct type of solenoid operated drain valve in the drain lines for each of the analyzers moisture separators, and 3) perform a post-maintenance test which adequately verified the function of the modified systems. The failure to ensure that design control measures were properly implemented resulted in the plant being operated in Mode 1 and Mode 2 with two hydrogen analyzers inoperable in excess of the allowed Technical Specification (TS)outage time.
 
containment hydrogen analyzer channel 1. The evaluation identified that during an
 
engineering change which modified containment hydrogen analyzer channels 1 and 2, the licensee failed to: 1) identify the presence of check valves located in the drain lines
 
for each of the analyzer's moisture separators, 2) install the correct type of solenoid
 
operated drain valve in the drain lines for each of the analyzer's moisture separators, and 3) perform a post-maintenance test which adequately verified the function of the
 
modified systems. The failure to ensure that design control measures were properly
 
implemented resulted in the plant being operated in Mode 1 and Mode 2 with two
 
hydrogen analyzers inoperable in excess of the allowed Technical Specification (TS)
 
outage time.
 
Description
.Licensee Event Report 2003-005-01, "Containment Gas Analyzer Heat Exchanger Valves Found Closed Rendering the Containment Gas Analyzer Inoperable," discussed, in part, inadequate moisture removal systems associated with each of the containment
 
gas analyzer channels. The existing systems relied on a non safety-related air supply, which may not be available post accident, for removal of water from the moisture system
 
moisture traps. The impact of flooding the moisture traps would be that condensate
 
would fill the analyzer piping and cause the conductivity detector to indicate erroneous
 
containment hydrogen concentration levels. To correct this deficiency, the licensee
 
developed and implemented Engineering Change 03-0384-00, "Containment Gas Analyzer System (CGAS) Moisture Trap Discharge."  As part of this engineering change, the drain systems associated with the moisture traps for each of the CGAS channels
 
were modified to employ gravity as the motive force to drain the moisture traps, eliminating the need for the non safety-related air supply to perform this function.
 
On September 29, 2005, a performance of DB-MI-04729, "Channel 1 Containment Vessel Atmospheric H2 Analyzer Condensate Moisture Removal System Inspection and
 
Moisture Trap System Functional Test," Revision 01, revealed that the condensate
 
would not drain from the moisture trap as required. Subsequent licensee investigations
 
identified the following information.*The drain line from each analyzer's moisture trap contained an undocumented check valve. Since the check valves required approximately 2 psi to operate, they would have prevented each analyz er's gravity drainage system from operating properly.


10*During the implementation of the engineering change, pilot-operated solenoid valves, instead of direct acting solenoid valves, were installed in the drain line
=====Description.=====
Licensee Event Report 2003-005-01, Containment Gas Analyzer Heat Exchanger Valves Found Closed Rendering the Containment Gas Analyzer Inoperable, discussed, in part, inadequate moisture removal systems associated with each of the containment gas analyzer channels. The existing systems relied on a non safety-related air supply, which may not be available post accident, for removal of water from the moisture system moisture traps. The impact of flooding the moisture traps would be that condensate would fill the analyzer piping and cause the conductivity detector to indicate erroneous containment hydrogen concentration levels. To correct this deficiency, the licensee developed and implemented Engineering Change 03-0384-00, Containment Gas Analyzer System (CGAS) Moisture Trap Discharge. As part of this engineering change, the drain systems associated with the moisture traps for each of the CGAS channels were modified to employ gravity as the motive force to drain the moisture traps, eliminating the need for the non safety-related air supply to perform this function.


from each analyzer's moisture traps. Direct acting solenoid valves were initially
On September 29, 2005, a performance of DB-MI-04729, Channel 1 Containment Vessel Atmospheric H2 Analyzer Condensate Moisture Removal System Inspection and Moisture Trap System Functional Test, Revision 01, revealed that the condensate would not drain from the moisture trap as required. Subsequent licensee investigations identified the following information.
* The drain line from each analyzers moisture trap contained an undocumented check valve. Since the check valves required approximately 2 psi to operate, they would have prevented each analyzers gravity drainage system from operating properly.
* During the implementation of the engineering change, pilot-operated solenoid valves, instead of direct acting solenoid valves, were installed in the drain line from each analyzers moisture traps. Direct acting solenoid valves were initially selected based on the fact that the valve required no differential pressure to operate. Since the pilot-operated solenoid valves that were installed required a differential pressure of up to 1 psi to operate and the existing system configuration only provided a differential pressure of approximately 0.1 psi, the valves could have prevented each analyzers gravity drainage system from operating properly.
* The moisture trap drainage system post-installation testing was inadequate to verify the functionality of the modification. Although an adequate post-installation test would not have prevented the configuration control issues associated with the presence of undocumented check valves or the installation of the wrong type of solenoid valve, it would have identified the latent configuration control issues prior to returning inoperable systems to service.


selected based on the fact that the valve required no differential pressure to
Technical Specification 3.6.4.1 required both hydrogen analyzers to be operable or a plant shutdown commenced in 72 hours. On October 3, 2005, based on the results of investigations, which indicated that deficient conditions impacted both hydrogen analyzers, the licensee declared both hydrogen analyzers to be inoperable. Sufficient corrective actions were completed within the 72 hour time frame, therefore, a plant shutdown was not required.


operate. Since the pilot-operated solenoid valves that were installed required a
Corrective actions taken by the licensee included: the removal of the undocumented check valves from each analyzers drain line; the replacement of the pilot-operated solenoid valves with direct acting solenoid valves; successful completion of moisture trap functional tests for both analyzers; and plans to perform a detailed configuration walkdown for the CGAS cabinet.
 
differential pressure of up to 1 psi to operate and the existing system
 
configuration only provided a differential pressure of approximately 0.1 psi, the
 
valves could have prevented each analyz er's gravity drainage system from operating properly.*The moisture trap drainage system post-installation testing was inadequate to verify the functionality of the modification. Although an adequate post-installation
 
test would not have prevented the configuration control issues associated with
 
the presence of undocumented check valves or the installation of the wrong type
 
of solenoid valve, it would have identified the latent configuration control issues
 
prior to returning inoperable systems to service.
 
Technical Specification 3.6.4.1 required both hydrogen analyzers to be operable or a plant shutdown commenced in 72 hours. On October 3, 2005, based on the results of
 
investigations, which indicated that deficient conditions impacted both hydrogen
 
analyzers, the licensee declared both hydrogen analyzers to be inoperable. Sufficient
 
corrective actions were completed within the 72 hour time frame, therefore, a plant
 
shutdown was not required.
 
Corrective actions taken by the licensee included: the removal of the undocumented check valves from each analyzer's drain line; the replacement of the pilot-operated
 
solenoid valves with direct acting solenoid valves; successful completion of moisture trap
 
functional tests for both analyzers; and plans to perform a detailed configuration
 
walkdown for the CGAS cabinet.


=====Analysis.=====
=====Analysis.=====
In accordance with IMC 0609, Appendix A, Attachment 1, the inspectors performed an SDP Phase 1 screening and determined that the issue affected the
In accordance with IMC 0609, Appendix A, Attachment 1, the inspectors performed an SDP Phase 1 screening and determined that the issue affected the Reactor Safety Strategic Performance Area. The finding was more than minor because it:
 
Reactor Safety Strategic Performance Area. The finding was more than minor because
 
it:
: (1) involved the configuration control attribute of the Barrier Integrity Cornerstone; and
: (1) involved the configuration control attribute of the Barrier Integrity Cornerstone; and
: (2) affected the cornerstone objective of providing reasonable assurance that physical
: (2) affected the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events.
 
design barriers protect the public from radionuclide releases caused by accidents or
 
events. This finding is unrelated to SSCs that are needed to prevent accidents from leading to core damage. To determine if this finding had an effect on Large Early Release


Frequency, the inspectors used MC 0609, "Significance Determination Process,"
This finding is unrelated to SSCs that are needed to prevent accidents from leading to core damage. To determine if this finding had an effect on Large Early Release Frequency, the inspectors used MC 0609, "Significance Determination Process,"
Appendix H, Containment Integrity SDP. The finding is characterized as a Type B
Appendix H, Containment Integrity SDP. The finding is characterized as a Type B finding (having no impact on Core Damage Frequency) and was compared to Table 6.1 in Appendix H. The inspectors determined that the hydrogen analyzer had no impact on the containment-related SSCs listed in Table 6.1 (i.e. containment penetration seals, containment isolation valves or purge and vent lines) and would not influence the Large Early Release Frequency. Based on this, the finding was determined to be of very low safety significance. The inspectors also determined that the primary cause of this finding was related to the cross-cutting area of human performance in that there was a lack of attention to detail in specifying valves to be installed and performing post modification testing and in that reference documents did not show all components installed in the system.
 
finding (having no impact on Core Damage Frequency) and was compared to Table 6.1
 
in Appendix H. The inspectors determined that the hydrogen analyzer had no impact on
 
the containment-related SSCs listed in Table 6.1 (i.e. containment penetration seals, containment isolation valves or purge and vent lines) and would not influence the Large
 
Early Release Frequency. Based on this, the finding was determined to be of very low
 
safety significance. The inspectors also determined that the primary cause of this
 
finding was related to the cross-cutting area of human performance in that there was a 11 lack of attention to detail in specifying valves to be installed and performing post modification testing and in that reference documents did not show all components
 
installed in the system.


=====Enforcement.=====
=====Enforcement.=====
The performance deficiency associated with this event is the failure of the licensee to adequately implement design control measures during the implementation of
The performance deficiency associated with this event is the failure of the licensee to adequately implement design control measures during the implementation of the modification to the drainage systems for the channel 1 and channel 2 containment hydrogen analyzers. 10 CFR 50, Appendix B, Criterion III, Design Control, requires, in part, that design changes are required to be subjected to design control measures commensurate with those applied to the original design. Contrary to the requirements of Criterion III, licensee design control measures were inadequate during the implementation of the engineering change which modified the containment gas analyzer system moisture trap discharge system. Specifically, the licensee did not fully understand the configuration of the system during and after the modification, incorrect components were installed in the system during the engineering change implementation, and inadequate post modification testing failed to verify system functionality prior to returning the channel 1 and channel 2 containment gas analyzers to service. The failure resulted in the plant being operated in Mode 1 and Mode 2 with two hydrogen analyzers inoperable in excess of the allowed TS outage time. Because of the very low safety significance and because the issue has been entered into the licensees corrective action program (CRs 05-05217, 05-05256, 05-5349, and 05-05379) it is being treated as a Non-Cited Violation, consistent with Section VI.A of the NRC Enforcement Policy (NCV 05000346/2005009-02).
 
the modification to the drainage systems for the channel 1 and channel 2 containment
 
hydrogen analyzers. 10 CFR 50, Appendix B, Criterion III, Design Control, requires, in
 
part, that design changes are required to be subjected to design control measures
 
commensurate with those applied to the original design. Contrary to the requirements of
 
Criterion III, licensee design control measures were inadequate during the
 
implementation of the engineering change which modified the containment gas analyzer
 
system moisture trap discharge system.
 
Specifically, the licensee did not fully understand the configuration of the system during and after the modification, incorrect
 
components were installed in the system during the engineering change implementation, and inadequate post modification testing failed to verify system functionality prior to
 
returning the channel 1 and channel 2 containment gas analyzers to service. The failure
 
resulted in the plant being operated in Mode 1 and Mode 2 with two hydrogen analyzers
 
inoperable in excess of the allowed TS outage time. Because of the very low safety
 
significance and because the issue has been entered into the licensee's corrective
 
action program (CRs 05-05217, 05-05256, 05-5349, and 05-05379) it is being treated as
 
a Non-Cited Violation, consistent with Section VI.A of the NRC Enforcement Policy (NCV 05000346/2005009-02).
{{a|1R13}}
{{a|1R13}}
==1R13 Maintenance Risk Assessment and Emergent Work Evaluation (71111.13)==
==1R13 Maintenance Risk Assessment and Emergent Work Evaluation==
{{IP sample|IP=IP 71111.13}}


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors reviewed the licensee's response to risk significant activities. These activities were chosen based on their potential impact on increasing overall plant risk.
The inspectors reviewed the licensees response to risk significant activities. These activities were chosen based on their potential impact on increasing overall plant risk.
 
The inspections were conducted to review whether the planning, control, and
 
performance of the work were done in a manner to reduce overall plant risk and
 
minimize the duration where practical. Also, the inspection reviewed whether


contingency plans were in place when appropriate. The inspectors utilized the
The inspections were conducted to review whether the planning, control, and performance of the work were done in a manner to reduce overall plant risk and minimize the duration where practical. Also, the inspection reviewed whether contingency plans were in place when appropriate. The inspectors utilized the licensees daily configuration risk assessments, observations of shift turnover meetings, observations of daily plant status meetings, and the documents listed at the end of this report to determine whether the equipment configurations had been properly listed, that protected equipment had been identified and was being controlled where appropriate, that significant aspects of plant risk were being communicated to the necessary personnel, and that, as necessary, existing work plans were adjusted to accommodate the change in planned equipment operability. The inspectors evaluated the following licensee activities:
 
* During the period of November 9, 2005 through November 10, 2005, the inspectors reviewed the licensees initial planning and work schedule adjustments associated with the unexpected trip of reactor protection system channel 4 trip on high flux and high flux relative to flow. During this time period, the inspectors also reviewed the licensees work plans for identifying the cause of the trip and their plans for addressing the issue.
licensee's daily configuration risk assessments, observations of shift turnover meetings, observations of daily plant status meetings, and the documents listed at the end of this
* On October 12, 2005, the licensee determined that during the preceding work week they had unintentionally entered an orange risk condition for approximately 43 minutes while work activities were conducted in parallel that were originally evaluated for risk significance as being worked in series. The inspectors reviewed the issue including a review of the work activities and the response of the licensees organization to the event.
 
* On November 15, 2005, the licensee determined that, during the preceding shift, an orange risk condition was unintentionally entered for approximately 14.1 hours. This occurred when an equipment operator was placing the component cooling water (CCW) pump 2 back in service and failed to open the CCW heater exchanger 2 service water outlet valve (SW38) as specified in the procedure he was using.
report to determine whether the equipment configurations had been properly listed, that
* On November 26, 2005, the licensee determined that it would be necessary to reduce reactor power to approximately 60 percent to permit removal of main feed pump 2 from service due to a step increase in vibration levels.
 
protected equipment had been identified and was being controlled where appropriate, that significant aspects of plant risk were being communicated to the necessary
 
personnel, and that, as necessary, existing work plans were adjusted to accommodate
 
the change in planned equipment operability. The inspectors evaluated the following
 
licensee activities:*During the period of November 9, 2005 through November 10, 2005, the inspectors reviewed the licensee's initial planning and work schedule
 
adjustments associated with the unexpected trip of reactor protection system
 
channel 4 trip on high flux and high flux relative to flow. During this time period, the inspectors also reviewed the licensee's work plans for identifying the cause of
 
the trip and their plans for addressing the issue.
 
12*On October 12, 2005, the licensee determined that during the preceding work week they had unintentionally entered an orange risk condition for approximately
 
43 minutes while work activities were conducted in parallel that were originally
 
evaluated for risk significance as being worked in series. The inspectors
 
reviewed the issue including a review of the work activities and the response of
 
the licensee's organization to the event.*On November 15, 2005, the licensee determined that, during the preceding shift, an orange risk condition was unintentionally entered for approximately
 
14.1 hours. This occurred when an equipment operator was placing the
 
component cooling water (CCW) pump 2 back in service and failed to open the
 
CCW heater exchanger 2 service water outlet valve (SW38) as specified in the
 
procedure he was using.*On November 26, 2005, the licensee determined that it would be necessary to reduce reactor power to approximately 60 percent to permit removal of main feed
 
pump 2 from service due to a step increase in vibration levels.


This constitutes four samples.
This constitutes four samples.


====b. Findings====
====b. Findings====
Two specific issues which involved Licensee-Identified Violations were identified during the review of these maintenance risk assessment and emergent work samples. These
Two specific issues which involved Licensee-Identified Violations were identified during the review of these maintenance risk assessment and emergent work samples. These License-Identified Violations are further discussed in Section 4OA7 of this report.
 
License-Identified Violations are further discussed in Section
{{a|4OA7}}
==4OA7 of this report.
{{a|1R14}}
{{a|1R14}}
==1R14 Personnel Performance Related to Non-routine Plant Evolutions and Events==
==1R14 Personnel Performance Related to Non-routine Plant Evolutions and Events==
==
{{IP sample|IP=IP 71111.14}}
{{IP sample|IP=IP 71111.14}}


====a. Inspection Scope====
====a. Inspection Scope====
For the non-routine events described below, the inspectors reviewed operator logs, plant computer data and strip charts as appropriate, and operator performance, to determine if
For the non-routine events described below, the inspectors reviewed operator logs, plant computer data and strip charts as appropriate, and operator performance, to determine if the response was in accordance with plant procedures:
 
* On October 29, 2005, the inspectors observed portions of the power reduction from 100 percent power to approximately 12 percent and the planned trip of the reactor in preparation for a short planned outage. The inspectors focused on the operators ability to safely and conservatively maneuver the reactor plant during the power reduction and to perform the appropriate actions subsequent to the planned reactor trip. In addition, the inspectors verified that the control room operators safely established and maintained the plant in operational Mode 3 in preparation for the commencement of planned outage work.
the response was in accordance with plant procedures:*On October 29, 2005, the inspectors observed portions of the power reduction from 100 percent power to approximately 12 percent and the planned trip of the
* On October 30, 2005, the inspectors continuously observed control room operators perform a reactor startup from the initial pulling of the group 5 regulating control rods until the point of adding heat was reached. The inspectors reviewed whether initial plant conditions supported a reactor startup, whether estimated critical boron concentration and estimated critical rod position had been properly calculated and were current for the time the reactor startup was occurring, and whether all reactivity manipulations were being controlled in a safe and conservative manner.
 
* On October 31, 2005, the inspectors observed portions of the main turbine warming, initial turbine rolling, and the preparations for placing the main generator on the electric grid. The inspectors observed the control room operators parallel the main generator and synchronize it with the electric grid.
reactor in preparation for a short planned outage. The inspectors focused on the
 
operators' ability to safely and conservatively maneuver the reactor plant during


the power reduction and to perform the appropriate actions subsequent to the
The inspectors specifically reviewed the actions of the control room operators during the paralleling operation and subsequent transfer of load off the turbine bypass valves.
 
planned reactor trip. In addition, the inspectors verified that the control room
 
operators safely established and maintained the plant in operational Mode 3 in
 
preparation for the commencement of planned outage work.*On October 30, 2005, the inspectors continuously observed control room operators perform a reactor startup from the initial pulling of the group 5
 
regulating control rods until the point of adding heat was reached. The
 
inspectors reviewed whether initial plant conditions supported a reactor startup, whether estimated critical boron concentration and estimated critical rod position
 
had been properly calculated and were current for the time the reactor startup 13 was occurring, and whether all reactivity manipulations were being controlled in a safe and conservative manner.*On October 31, 2005, the inspectors observed portions of the main turbine warming, initial turbine rolling, and the preparations for placing the main
 
generator on the electric grid. The inspectors observed the control room
 
operators parallel the main generator and synchronize it with the electric grid.
 
The inspectors specifically reviewed the actions of the control room operators
 
during the paralleling operation and subsequent transfer of load off the turbine
 
bypass valves.


This constitutes three samples.
This constitutes three samples.
Line 640: Line 274:
No findings of significance were identified.
No findings of significance were identified.
{{a|1R15}}
{{a|1R15}}
==1R15 Operability Evaluations (71111.15)==
==1R15 Operability Evaluations==
{{IP sample|IP=IP 71111.15}}


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors selected a condition report which discussed a potential operability issue for a risk significant component or system. The condition report and applicable licensee
The inspectors selected a condition report which discussed a potential operability issue for a risk significant component or system. The condition report and applicable licensee operability evaluation were reviewed to determine whether the operability of the component or system was appropriately supported. The inspectors compared the operability and design criteria in the appropriate sections of the USAR to the licensees evaluation of the issue to determine whether the systems was operable. Where compensatory measures were necessary to maintain operability, the inspectors determined whether compensatory measures were in place, would work as intended, and were properly controlled.
 
operability evaluation were reviewed to determine whether the operability of the
 
component or system was appropriately s upported. The inspectors compared the operability and design criteria in the appropriate sections of the USAR to the licensee's
 
evaluation of the issue to determine whether the systems was operable. Where
 
compensatory measures were necessary to maintain operability, the inspectors
 
determined whether compensatory measures were in place, would work as intended, and were properly controlled.


The following sample was evaluated:
The following sample was evaluated:
*CR 05-05184: Boron Injection Flowrate Calculation 034.009 Non-ConservativeAssumptions. The inspectors observed and reviewed the licensee's response to the identification of non-conservative acceptance criteria associated with boric acid
* CR 05-05184: Boron Injection Flowrate Calculation 034.009 Non-Conservative Assumptions.
 
pump 2 due to incorrect calculation assumptions associated with maximum
 
makeup tank pressure and minimum boric acid addition tank level. Specifically, the inspectors reviewed the licensee's initial assessment of boric acid pump 2
 
operability, Standing Order 05-015 and associated 10 CFR 50.59 screening
 
document which provided guidance to operations personnel regarding the
 
operation of boric acid pump 2, and the licensee's long term corrective actions to


correct the issue.
The inspectors observed and reviewed the licensees response to the identification of non-conservative acceptance criteria associated with boric acid pump 2 due to incorrect calculation assumptions associated with maximum makeup tank pressure and minimum boric acid addition tank level. Specifically, the inspectors reviewed the licensees initial assessment of boric acid pump 2 operability, Standing Order 05-015 and associated 10 CFR 50.59 screening document which provided guidance to operations personnel regarding the operation of boric acid pump 2, and the licensees long term corrective actions to correct the issue.


This constitutes one sample.
This constitutes one sample.


====b. Findings====
====b. Findings====
14 No findings of significance were identified.
No findings of significance were identified.
{{a|1R16}}
{{a|1R16}}
==1R16 Operator Workarounds (71111.16).1Resident Inspector Cumulative Review==
==1R16 Operator Workarounds==
{{IP sample|IP=IP 71111.16}}
===.1 Resident Inspector Cumulative Review===


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors performed a review of all the existing operator workarounds and control room deficiencies to determine whether their cumulative effect had a significant impact
The inspectors performed a review of all the existing operator workarounds and control room deficiencies to determine whether their cumulative effect had a significant impact on plant risk or on the operators ability to respond to a transient or an accident. This involved reviewing all documented operator workarounds, control room deficiencies, and shift turnover sheets. The inspectors determined whether the licensee had appropriately classified the significance of the workarounds and deficiencies, whether the workarounds were reasonable, and whether the licensee had initiated the appropriate corrective actions, commensurate with the significance of the deficiency or workaround.
 
on plant risk or on the operators' ability to respond to a transient or an accident. This
 
involved reviewing all documented operator workarounds, control room deficiencies, and
 
shift turnover sheets. The inspectors determined whether the licensee had appropriately
 
classified the significance of the workarounds and deficiencies, whether the
 
workarounds were reasonable, and whether the licensee had initiated the appropriate
 
corrective actions, commensurate with the significance of the deficiency or workaround.
 
In addition, the inspectors reviewed the licensee's latest operator workaround and
 
control room deficiency quarterly aggregate impact report (dated August 18, 2005). As


part of the review, the inspectors evaluated the quality of the report and assessed the
In addition, the inspectors reviewed the licensees latest operator workaround and control room deficiency quarterly aggregate impact report (dated August 18, 2005). As part of the review, the inspectors evaluated the quality of the report and assessed the impact of any items that had been added or deleted since the report was prepared.
 
impact of any items that had been added or deleted since the report was prepared.


This constitutes one sample.
This constitutes one sample.
Line 708: Line 307:


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors reviewed licensee actions to address a Level 1 workaround associated with turbine bypass valves SP13B3 and SP13A1. Both valves, after initial opening, demonstrated the tendency to stick approximately 1/4 open. This may require operator
The inspectors reviewed licensee actions to address a Level 1 workaround associated with turbine bypass valves SP13B3 and SP13A1. Both valves, after initial opening, demonstrated the tendency to stick approximately 1/4 open. This may require operator action to shut the associated discharge isolation valves to fully secure flow through a stuck open valve. The inspectors reviewed whether this additional action would present a significant impact on the affected operator to perform actions to mitigate the effect of a significant plant event. The inspectors reviewed the procedures that would be used to isolate the valves and observed a demonstration by an operator of what actions he would take to isolate both valves.
 
action to shut the associated discharge isolation valves to fully secure flow through a
 
stuck open valve. The inspectors reviewed whether this additional action would present
 
a significant impact on the affected operator to perform actions to mitigate the effect of a
 
significant plant event. The inspectors reviewed the procedures that would be used to
 
isolate the valves and observed a demonstration by an operator of what actions he
 
would take to isolate both valves.


This constitutes one sample.
This constitutes one sample.
Line 727: Line 314:
No findings of significance were identified.
No findings of significance were identified.
{{a|1R19}}
{{a|1R19}}
==1R19 Post-Maintenance Testing (71111.19)==
==1R19 Post-Maintenance Testing==
{{IP sample|IP=IP 71111.19}}


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors reviewed the post-maintenance testing activities associated with the following scheduled and emergent work activities:*troubleshooting, repair, and post-maintenance testing of the safety features actuation system (SFAS) channel 1 low-low pressure bistable card during the
The inspectors reviewed the post-maintenance testing activities associated with the following scheduled and emergent work activities:
 
* troubleshooting, repair, and post-maintenance testing of the safety features actuation system (SFAS) channel 1 low-low pressure bistable card during the period of October 3 though October 7, 2005;
period of October 3 though October 7, 2005;*troubleshooting, repair, and post-maintenance testing of the reactor protection system (RPS) channel one pressure/temperature bistable during the period of
* troubleshooting, repair, and post-maintenance testing of the reactor protection system (RPS) channel one pressure/temperature bistable during the period of October 5, 2005, through October 9, 2005;
* post-maintenance testing of the service water pump 1 and its discharge strainer on October 13, 2005, after scheduled preventive maintenance activities;
* planned maintenance and post-maintenance testing of makeup pump 1 and associated discharge valves during the period of October 25 and 26, 2005;
* troubleshooting, repair, and post-maintenance testing of the rod drive system, during the period of October 29 and 30, 2005;
* post-maintenance testing of the auxiliary feedwater pump 1 and MS 106A, steam supply valve, on November 2, 2005, after scheduled preventive maintenance activities and relay replacement;
* post-maintenance testing of auxiliary feed pump turbine 2 suction pressure interlock switch after switch replacement on November 12, 2005;
* post-maintenance testing of main feed pump 2 on November 27 and 28, 2005, after disassembly, alignment and reassembly of the main feed pump to turbine coupling to reduce pump vibrations; The inspectors determined whether the testing was adequate for the scope of the maintenance work performed. The inspectors reviewed the acceptance criteria of the tests to ensure that the criteria were clear and that testing demonstrated operational readiness consistent with the design and licensing basis documents. Documents reviewed during this inspection are listed in the Attachment.


October 5, 2005, through October 9, 2005;*post-maintenance testing of the service water pump 1 and its discharge strainer on October 13, 2005, after scheduled preventive maintenance activities;*planned maintenance and post-maintenance testing of makeup pump 1 and associated discharge valves during the period of October 25 and 26, 2005;*troubleshooting, repair, and post-maintenance testing of the rod drive system, during the period of October 29 and 30, 2005;*post-maintenance testing of the auxiliary feedwater pump 1 and MS 106A, steam supply valve, on November 2, 2005, after scheduled preventive maintenance
The inspectors attended select pre-job briefings to determine whether the impact of the testing was appropriately characterized. The inspectors also observed the performance of testing or reviewed post test results to verify the procedure was followed and that all testing prerequisites and acceptance criteria were satisfied. Following the completion of tests, the inspectors walked down the affected equipment to verify removal of the test equipment and to ensure the equipment could perform the intended safety function following the test.
 
activities and relay replacement; *post-maintenance testing of auxiliary feed pump turbine 2 suction pressure interlock switch after switch replacement on November 12, 2005; *post-maintenance testing of main feed pump 2 on November 27 and 28, 2005, after disassembly, alignment and reassembly of the main feed pump to turbine
 
coupling to reduce pump vibrations; The inspectors determined whether the testing was adequate for the scope of the maintenance work performed. The inspectors reviewed the acceptance criteria of the
 
tests to ensure that the criteria were clear and that testing demonstrated operational
 
readiness consistent with the design and licensing basis documents. Documents
 
reviewed during this inspection are listed in the Attachment.
 
The inspectors attended select pre-job briefings to determine whether the impact of the testing was appropriately characterized. The inspectors also observed the performance
 
of testing or reviewed post test results to verify the procedure was followed and that all
 
testing prerequisites and acceptance criteria were satisfied. Following the completion of  
 
tests, the inspectors walked down the affected equipment to verify removal of the test
 
equipment and to ensure the equipment could perform the intended safety function
 
following the test.


This constitutes eight samples.
This constitutes eight samples.
Line 763: Line 335:
No findings of significance were identified.
No findings of significance were identified.
{{a|1R20}}
{{a|1R20}}
==1R20 Refueling and Outage Activities (71111.20)==
==1R20 Refueling and Outage Activities==
{{IP sample|IP=IP 71111.20}}


====a. Inspection Scope====
====a. Inspection Scope====
16 The inspectors observed activities associated with a 3 day planned outage which began on October 29, 2005. The outage began when the reactor was tripped from
The inspectors observed activities associated with a 3 day planned outage which began on October 29, 2005. The outage began when the reactor was tripped from approximately 12 percent power and ended when the main generator was placed on-line at approximately 12:52 on October 31, 2005. Throughout the brief outage, the plant was maintained in operational Mode 3. The inspectors reviewed the applicable transient and shutdown plant parameters, configuration management, clearance activities, shutdown risk assessments, conformance to applicable procedures, and compliance with TSs.
 
approximately 12 percent power and ended when the main generator was placed on-line
 
at approximately 12:52 on October 31, 2005. Throughout the brief outage, the plant was
 
maintained in operational Mode 3. The inspectors reviewed the applicable transient and
 
shutdown plant parameters, configuration management, clearance activities, shutdown
 
risk assessments, conformance to applicable procedures, and compliance with TSs.


This constitutes one sample.
This constitutes one sample.
Line 783: Line 346:
No findings of significance were identified.
No findings of significance were identified.
{{a|1R22}}
{{a|1R22}}
==1R22 Surveillance Testing (71111.22)==
==1R22 Surveillance Testing==
{{IP sample|IP=IP 71111.22}}


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors observed surveillance tests or evaluated test data to determine whether the equipment tested met TSs, the Updated Safety Analysis Report, and licensee
The inspectors observed surveillance tests or evaluated test data to determine whether the equipment tested met TSs, the Updated Safety Analysis Report, and licensee procedural requirements, and also demonstrated that the equipment was capable of performing its intended safety functions. The inspectors used the documents listed at the end of this report to determine if the test met the TS frequency requirements; that the test was conducted in accordance with the procedures, including establishing the proper plant conditions and prerequisites; that the test acceptance criteria were met; and that the results of the test were properly reviewed and recorded. The following surveillances were evaluated:
 
* D1 Bus Undervoltage Units Monthly Functional Test (October 18, 2005);
procedural requirements, and also demonstrated that the equipment was capable of
* Steam Feed Rupture Control System Logic Channel 2 Functional Test (October 19, 2005);
 
* Control Rod Assembly Insertion Time Test [for control rod 6-8 and the group 7 control rods] (October 30, 2005);
performing its intended safety functions. The inspectors used the documents listed at
* Moderator Temperature Coefficient Measurement by Boron Swap (December 04, 2005);
 
* Channel Functional Test of Main Turbine and Feed Pump Turbine Hydraulic Oil Pressure Trips for Anticipatory Reactor Trip System Channel 4 (October 12, 2005) including review of potential preconditioning due to initial schedule of performing preventive maintenance tasks prior to surveillance;
the end of this report to determine if the test met the TS frequency requirements; that the
* Reactor Coolant System Water Inventory Balance (December 2, 2005 through December 4, 2005);
 
* Decay Heat/Low Pressure Injection pump 1 quarterly test (December 28, 2005);and
test was conducted in accordance with the procedures, including establishing the proper
* Main Turbine Master Trip Solenoid Valve operability testing and problem solving activities (December 29, 2005).
 
plant conditions and prerequisites; that the test acceptance criteria were met; and that
 
the results of the test were properly reviewed and recorded. The following surveillances
 
were evaluated:*D1 Bus Undervoltage Units Monthly Functional Test (October 18, 2005); *Steam Feed Rupture Control System Logic Channel 2 Functional Test (October 19, 2005); *Control Rod Assembly Insertion Time Test [for control rod 6-8 and the group 7 control rods] (October 30, 2005);*Moderator Temperature Coefficient Meas urement by Boron Swap (December 04, 2005);*Channel Functional Test of Main Turbine and Feed Pump Turbine Hydraulic Oil Pressure Trips for Anticipatory Reactor Trip System Channel 4 (October 12, 2005) including review of potential preconditioning due to initial schedule of
 
performing preventive maintenance tasks prior to surveillance; *Reactor Coolant System Water Inventory Balance (December 2, 2005 through December 4, 2005); *Decay Heat/Low Pressure Injection pump 1 quarterly test (December 28, 2005);
and*Main Turbine Master Trip Solenoid Valve operability testing and problem solving activities (December 29, 2005).


This constitutes eight samples.
This constitutes eight samples.


====b. Findings====
====b. Findings====
17 No findings of significance were identified.
No findings of significance were identified.
{{a|1R23}}
{{a|1R23}}
==1R23 Temporary Plant Modifications (71111.23)==
==1R23 Temporary Plant Modifications==
{{IP sample|IP=IP 71111.23}}


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors reviewed the temporary modification and associated 10 CFR 50.59 screening against system requirements, incl uding the Updated Safety Analysis Report and TS, to determine whether there were any effects on system operability or availability and if consistency with plant documentation and procedures was maintained. The
The inspectors reviewed the temporary modification and associated 10 CFR 50.59 screening against system requirements, including the Updated Safety Analysis Report and TS, to determine whether there were any effects on system operability or availability and if consistency with plant documentation and procedures was maintained. The inspectors observed portions of the implementation of the temporary modifications.


inspectors observed portions of the implem entation of the temporary modifications.
Additionally, the inspectors reviewed the work order governing the following work:
* During the short plant outage which occurred October 29 through 31, 2005, the licensee investigated an abnormal vibration related noise emanating from the isophase duct located near the main generator bushing area during the operation of bus duct cooling when only one bus duct cooling fan was in operation. During the investigation, the licensee discovered at least one of the three damper blades associated with damper VC6052 was damaged. Since the dampers, located in the isophase air crossover duct, were normally operated fully open, the licensee decided to implement temporary modification 05-0041 to remove the six damper blades associated with dampers VC6052 and VC6053. The inspectors observed the implementation of this temporary modification and the restoration of power to the generator busses, which occurred on October 31, 2005.
* Temporary modification 05-0015 which was for installation of a metal patch for main feedpump 2 inboard seal return fillet weld with a pinhole leak in the weld between the seal housing and the first pipe nipple.


Additionally, the inspectors reviewed the work order governing the following work: *During the short plant outage which occurred October 29 through 31, 2005, the licensee investigated an abnormal vibration related noise emanating from the
This constitutes two samples.


isophase duct located near the main generator bushing area during the operation
====b. Findings====
No findings of significance were identified.


of bus duct cooling when only one bus duct cooling fan was in operation. During
===Cornerstone: Emergency Preparedness===
{{a|1EP4}}
==1EP4 Emergency Action Level and Emergency Plan Changes==
{{IP sample|IP=IP 71114.04}}


the investigation, the licensee discovered at least one of the three damper blades
====a. Inspection Scope====
The inspectors performed screening reviews of Revision 24 of the Davis-Besse Nuclear Power Station Emergency Plan and Revision 05 of associated implementing procedure RA-EP-01500 to determine whether the changes made in these revisions decreased the effectiveness of the licensees emergency planning. The screening reviews of these revisions did not constitute an approval of the changes and, as such, the changes are subject to future NRC inspection to ensure that the emergency plan continues to meet NRC regulations.


associated with damper VC6052 was damaged. Since the dampers, located in
This constitutes one sample.


the isophase air crossover duct, were normally operated fully open, the licensee
====b. Findings====
 
No findings of significance were identified.
decided to implement temporary modification 05-0041 to remove the six damper
 
blades associated with dampers VC6052 and VC6053. The inspectors observed
 
the implementation of this temporary modification and the restoration of power to
 
the generator busses, which occurred on October 31, 2005. *Temporary modification 05-0015 which was for installation of a metal patch for main feedpump 2 inboard seal return fillet weld with a pinhole leak in the weld
 
between the seal housing and the first pipe nipple.This constitutes two samples.


====b. Findings====
==OTHER ACTIVITIES==
No findings of significance were identified.Cornerstone:  Emergency Preparedness1EP4Emergency Action Level and Emergency Plan Changes (71114.04)
{{a|4OA2}}
==4OA2 Identification and Resolution of Problems==
{{IP sample|IP=IP 71152}}
===.1 Daily Review===


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors performed screening reviews of Revision 24 of the Davis-Besse Nuclear Power Station Emergency Plan and Revision 05 of associated implementing procedure
As required by Inspection Procedure 71152, Identification and Resolution of Problems, and in order to help identify repetitive equipment deficiencies or specific human performance issues for follow-up, the inspectors performed a daily screening of items entered into the licensees CAP. This screening was accomplished by reviewing documents entered into the licensee CAP and review of document packages prepared for the licensees daily Management Alignment and Ownership Meetings.
 
RA-EP-01500 to determine whether the changes made in these revisions decreased the
 
effectiveness of the licensee's emergency planning. The screening reviews of these
 
revisions did not constitute an approval of the changes and, as such, the changes are
 
subject to future NRC inspection to ensure that the emergency plan continues to meet
 
NRC regulations.
 
18 This constitutes one sample.


====b. Findings====
====b. Findings====
No findings of significance were identified.4.OTHER ACTIVITIES4OA2Identification and Resolution of Problems (71152).1Daily Review
No findings of significance were identified.
 
====a. Inspection Scope====
As required by Inspection Procedure 71152, Identification and Resolution of Problems, and in order to help identify repetitive equipment deficiencies or specific human
 
performance issues for follow-up, the inspectors performed a daily screening of items
 
entered into the licensee's CAP. This screening was accomplished by reviewing
 
documents entered into the licensee CAP and review of document packages prepared


for the licensee's daily Management A lignment and Ownership Meetings.
===.2 Semi-Annual Review to Identify Trends===
 
====b. Findings====
No findings of significance were identified..2 Semi-Annual Review to Identify Trends


====a. Inspection Scope====
====a. Inspection Scope====
As required by Inspection Procedure 71152, "Identification and Resolution of Problems," the inspectors performed a review of the licensee's CAP and associated documents to
As required by Inspection Procedure 71152, "Identification and Resolution of Problems,"
 
the inspectors performed a review of the licensees CAP and associated documents to identify trends that could indicate the existence of a more significant safety issue. The inspectors review was focused on repetitive equipment issues, but also considered the results of daily inspector CAP item screening discussed in Section 4OA2.1 above, licensee trending efforts, and licensee human performance results. The inspectors review included the 6-month period of July 2005 through December 2005. Inspectors also reviewed the Davis-Besse Oversight Assessment Report (third quarter 2005) and the most current operations department cognitive trending report (May through October, 2005). The review also included issues documented in the licensees system health reports and maintenance rule assessments. The inspectors compared and contrasted their results with the results contained in the licensees latest quarterly trend report.
identify trends that could indicate the existence of a more significant safety issue. The
 
inspector's review was focused on repetitive equipment issues, but also considered the
 
results of daily inspector CAP item screening discussed in Section 4OA2.1 above, licensee trending efforts, and licensee human performance results. The inspectors'
 
review included the 6-month period of July 2005 through December 2005. Inspectors
 
also reviewed the Davis-Besse Oversight Assessment Report (third quarter 2005) and
 
the most current operations department cognitive trending report (May through October, 2005). The review also included issues documented in the licensee's system health
 
reports and maintenance rule assessments. The inspectors compared and contrasted
 
their results with the results contained in the licensee's latest quarterly trend report.
 
Corrective actions associated with a sample of the issues identified in the licensee's
 
reports were reviewed for adequacy. b.Assessment and Observations 19 There were no findings of significance identified. The inspectors determined that the implementation of trending was adequate. The inspectors compared the licensee


process results with the results of the inspectors' daily screening and did not identify any
Corrective actions associated with a sample of the issues identified in the licensees reports were reviewed for adequacy.


discrepancies or potential trends that were not currently captured in the CAP or other
b. Assessment and Observations There were no findings of significance identified. The inspectors determined that the implementation of trending was adequate. The inspectors compared the licensee process results with the results of the inspectors daily screening and did not identify any discrepancies or potential trends that were not currently captured in the CAP or other licensee generated documents.


licensee generated documents..3 Annual Sample: Environmental Qualification Program Elements
===.3 Annual Sample: Environmental Qualification Program Elements===


====a. Inspection Scope====
====a. Inspection Scope====
The inspectors chose to review Condition Report 05-05226, "AFW Valves FV6451 and FV6452 Silicon Rubber Seals Replacement Not Identified," and reviewed how these
The inspectors chose to review Condition Report 05-05226, AFW Valves FV6451 and FV6452 Silicon Rubber Seals Replacement Not Identified, and reviewed how these environmentally qualified (EQ) seals and other EQ components were identified and flagged in the work control system as requiring conformance with EQ specifications.
 
environmentally qualified (EQ) seals and other EQ components were identified and flagged in the work control system as requiring conformance with EQ specifications.
 
The inspectors reviewed selected EQ governing documents and reviewed condition
 
reports to observe if there were recurring problems with maintaining the EQ


components.
The inspectors reviewed selected EQ governing documents and reviewed condition reports to observe if there were recurring problems with maintaining the EQ components.


====b. Findings and Observations====
====b. Findings and Observations====
During an environmental qualification program self-assessment, the licensee identified three maintenance procedures that did not capture EQ program requirements for
During an environmental qualification program self-assessment, the licensee identified three maintenance procedures that did not capture EQ program requirements for auxiliary feedwater Target Rock solenoid valves, FV6451 and FV6452. The three procedures were also not identified in the procedure data base system as procedures with steps that implement EQ program requirements.
 
auxiliary feedwater Target Rock solenoid valves, FV6451 and FV6452. The three
 
procedures were also not identified in the procedure data base system as procedures
 
with steps that implement EQ program requirements.
 
Valves FV6451 and FV6452 were added to the EQ program in the time period of 2003 after the licensee identified that components within the auxiliary feed pump rooms could be subjected to a steam environment after a high energy line break (HELB) in the turbine
 
building. The licensee implemented a design change package (ECR-02-0627-00) to
 
modify various components but determined that no work was necessary on valves
 
FV6451 and FV6452 since the valves met EQ requirements even though they were not
 
formally in the EQ program. The licensee stated in their condition report that, since no
 
work was required under the design change package, the modification of existing
 
procedures was overlooked. Review of existing procedures is a normal requirement for
 
components modified by a design change.
 
As part of its review for the condition report, the licensee determined that valve silicon rubber seals (o-rings), used to maintain the EQ certification of valves FV6451 and
 
FV6452, could be up to 18 years old. In previous maintenance activities on those valves
 
the o-rings were inspected by maintenance personnel for their overall condition. There
 
was no record found that the o-rings had been replaced. The EQ test report for the
 
valves stated that the o-rings should be replaced at least every 10 years and
 
recommended a 5 year replacement inte rval or whenever the components were disassembled. The licensee determined, after discussion with the valve manufacturer
 
and after comparing EQ qualification test conditions with calculated room conditions
 
after a HELB, that it was reasonable to presume that the existing valve conditions were
 
sufficient to consider the valves functional for assumed mission times after a HELB.
 
20 As corrective action the licensee modified the relevant data bases and procedures to show that FV6451 and FV6452 were in the EQ program and to implement the
 
requirements contained within the valves' certification package. The licensee also
 
initiated work orders to replace the valves' o-rings at the next available opportunity.
 
The inspectors' review of condition reports related to EQ, review of a licensee self assessment of the EQ program, and selected review of EQ packages did not identify any
 
items of significance. As identified by the licensee, a backlog exists for EQ package
 
change notices and those work activities were prioritized low in the overall engineering
 
backlog reduction effort.4OA3Event Followup (71153).1(Closed) LER 05000346/2005002-00 , Inoperable Battery Due to Procedure Deficiency and Inadequate Reviews On May 4, 2005, in response to NRC questions during the Safety System Design and Performance Capability (SSDPC) inspection, the licensee performed a review of past


Station Battery quarterly surveillance test (DB-ME-03001), and found that the voltage
Valves FV6451 and FV6452 were added to the EQ program in the time period of 2003 after the licensee identified that components within the auxiliary feed pump rooms could be subjected to a steam environment after a high energy line break (HELB) in the turbine building. The licensee implemented a design change package (ECR-02-0627-00) to modify various components but determined that no work was necessary on valves FV6451 and FV6452 since the valves met EQ requirements even though they were not formally in the EQ program. The licensee stated in their condition report that, since no work was required under the design change package, the modification of existing procedures was overlooked. Review of existing procedures is a normal requirement for components modified by a design change.


reading for Station Battery 2N cell number 60 was recorded on December 2003 as 2.114
As part of its review for the condition report, the licensee determined that valve silicon rubber seals (o-rings), used to maintain the EQ certification of valves FV6451 and FV6452, could be up to 18 years old. In previous maintenance activities on those valves the o-rings were inspected by maintenance personnel for their overall condition. There was no record found that the o-rings had been replaced. The EQ test report for the valves stated that the o-rings should be replaced at least every 10 years and recommended a 5 year replacement interval or whenever the components were disassembled. The licensee determined, after discussion with the valve manufacturer and after comparing EQ qualification test conditions with calculated room conditions after a HELB, that it was reasonable to presume that the existing valve conditions were sufficient to consider the valves functional for assumed mission times after a HELB.


volts. The voltage value was below the 2.13 volts minimum TS limits. At that time, the
As corrective action the licensee modified the relevant data bases and procedures to show that FV6451 and FV6452 were in the EQ program and to implement the requirements contained within the valves certification package. The licensee also initiated work orders to replace the valves o-rings at the next available opportunity.


licensee did not implement corrective actions to restore the cell voltage within 7 days as
The inspectors review of condition reports related to EQ, review of a licensee self assessment of the EQ program, and selected review of EQ packages did not identify any items of significance. As identified by the licensee, a backlog exists for EQ package change notices and those work activities were prioritized low in the overall engineering backlog reduction effort.
{{a|4OA3}}
==4OA3 Event Followup==
{{IP sample|IP=IP 71153}}
===.1 (Closed) LER 05000346/2005002-00, Inoperable Battery Due to Procedure Deficiency===


required by TS and the surveillance test procedure. The licensee entered this issue into
and Inadequate Reviews On May 4, 2005, in response to NRC questions during the Safety System Design and Performance Capability (SSDPC) inspection, the licensee performed a review of past Station Battery quarterly surveillance test (DB-ME-03001), and found that the voltage reading for Station Battery 2N cell number 60 was recorded on December 2003 as 2.114 volts. The voltage value was below the 2.13 volts minimum TS limits. At that time, the licensee did not implement corrective actions to restore the cell voltage within 7 days as required by TS and the surveillance test procedure. The licensee entered this issue into the corrective action program (CR 05-02415) on May 4, 2005. This issue was documented as a Non-Cited Violation (NCV 05000346/2005004-02) in Inspection Report 05000346/2005004(DRS). The inspector reviewed the licensees corrective actions for CR 05-02415 and found them to be adequate. This LER is closed.


the corrective action program (CR 05-02415) on May 4, 2005. This issue was
{{a|4OA5}}
==4OA5 Other Activities==


documented as a Non-Cited Violation (NCV 05000346/2005004-02) in Inspection Report
===.1 Review of Licensee Response to NRC Generic Letter 95-07===


05000346/2005004(DRS). The inspector reviewed the licensee's corrective actions for
By letter dated November 29, 2004, the licensee corrected information relating to NRC Generic Letter 95-07, Pressure Locking and Thermal Binding of Safety-Related Power Operated Gate Valves, provided to the NRC by letter dated February 13, 1996. In the February 13, 1996, letter, the licensee stated that the pressurizer vent stop valve, RC 200, was routinely opened and closed during plant operation and had not become thermally bound. The corrected information stated that the valve is normally closed and is not required to be operated in modes 1, 2, or 3, and as a result would still not become thermally bound.


CR 05-02415 and found them to be adequate. This LER is closed.4OA5Other Activities.1Review of Licensee Response to NRC Generic Letter 95-07 By letter dated November 29, 2004, the licensee corrected information relating to NRC Generic Letter 95-07, "Pressure Locking and Thermal Binding of Safety-Related Power
By letter dated August 9, 2005, the licensee provided additional information in response to NRC staff questions concerning the possibility of RC 200 becoming thermally bound if operated in response to a small-break loss-of-coolant accident. The licensee stated that valves identical to RC 200 had not experienced thermal binding; however, the licensee still committed to take action to ensure that thermal binding of RC 200 will not occur.


Operated Gate Valves," provided to the NRC by letter dated February 13, 1996. In the
Specifically the licensee committed to modify two station procedures to require use of a regularly cycled valve, RC 239A, in lieu of RC 200 to initiate flow path isolation after initiation of flow and to inform operators of the procedure changes. The NRC staff reviewed the information provided and concluded that it was acceptable. Additionally, the inspectors determined that the procedures were modified and that the licensee took action to notify licensed operators.


February 13, 1996, letter, the licensee stated that the pressurizer vent stop valve, RC 200, was routinely opened and closed during plant operation and had not become
In the NRCs safety evaluation of June 16, 1999, the NRC staff accepted valve RC 200 as not being subject to thermal binding. The information provided in the licensees letter of February 16, 1996, was material to the NRCs decision accepting the response to Generic Letter 95-07. The submittal of incomplete and inaccurate information is a licensee identified violation of 10 CFR 50.9(a). The enforcement aspects of this violation are discussed in Section 4OA7.
 
{{a|4OA5}}
thermally bound. The corrected information stated that the valve is normally closed and
==4OA5 Other Activities==
 
is not required to be operated in modes 1, 2, or 3, and as a result would still not become
 
thermally bound.
 
By letter dated August 9, 2005, the licensee provided additional information in response to NRC staff questions concerning the possibility of RC 200 becoming thermally bound if
 
operated in response to a small-break loss-of-coolant accident. The licensee stated that
 
valves identical to RC 200 had not experienced thermal binding; however, the licensee
 
still committed to take action to ensure that thermal binding of RC 200 will not occur.
 
Specifically the licensee committed to modify two station procedures to require use of a
 
regularly cycled valve, RC 239A, in lieu of RC 200 to initiate flow path isolation after
 
initiation of flow and to inform operators of the procedure changes. The NRC staff 21 reviewed the information provided and concluded that it was acceptable. Additionally, the inspectors determined that the procedures were modified and that the licensee took
 
action to notify licensed operators.
 
In the NRC's safety evaluation of June 16, 1999, the NRC staff accepted valve RC 200 as not being subject to thermal binding. The information provided in the licensee's letter
 
of February 16, 1996, was material to the NRC's decision accepting the response to
 
Generic Letter 95-07. The submittal of incomplete and inaccurate information is a
 
licensee identified violation of 10 CFR 50.9(a). The enforcement aspects of this violation
 
are discussed in Section
{{a|4OA7}}
==4OA7 . 4OA5Other Activities==
{{IP sample|IP=IP 93812}}
{{IP sample|IP=IP 93812}}
The March 8, 2004, Confirmatory Order required, in part, that the licensee perform annual independent assessments, for a period of 5 years, in the areas of operations
The March 8, 2004, Confirmatory Order required, in part, that the licensee perform annual independent assessments, for a period of 5 years, in the areas of operations performance; organizational safety culture, including safety conscious work environment; corrective action program implementation; and engineering program effectiveness. This section of the report documents the special inspection activities associated with those assessments that were completed during this inspection period.


performance; organizational safety culture, including safety conscious work environment; corrective action program implementation; and engineering program effectiveness. This section of the report documents the special inspection activities associated with those
===.1 Review of Engineering Program Effectiveness Independent Assessment Plan and===


assessments that were completed during this inspection period.
Implementation
 
22.1Review of Engineering Program Effectiveness Independent Assessment Plan and Implementation


====a. Inspection Scope====
====a. Inspection Scope====
The inspection activities were performed to verify the licensee's compliance with the requirement for independent assessments, as described in the March 8, 2004, Confirmatory Order Modifying License No. NPF-3. This was the second of five required
The inspection activities were performed to verify the licensees compliance with the requirement for independent assessments, as described in the March 8, 2004, Confirmatory Order Modifying License No. NPF-3. This was the second of five required annual independent assessments of the engineering program. The inspectors verified that the licensee had submitted the required inspection plan 90 days prior to the performance of the assessment, evaluated the plan, and observed on-site implementation of the assessment to verify plan completion.
 
annual independent assessments of the engineering program. The inspectors verified
 
that the licensee had submitted the required inspection plan 90 days prior to the
 
performance of the assessment, evaluated the plan, and observed on-site
 
implementation of the assessment to verify plan completion.


====b. Observations and Findings====
====b. Observations and Findings====
The licensee submitted its plan (start date of November 28, 2005) in a letter to the NRC dated August 29, 2005. The inspectors reviewed the licensee's letter describing the
The licensee submitted its plan (start date of November 28, 2005) in a letter to the NRC dated August 29, 2005. The inspectors reviewed the licensees letter describing the assessment plans and evaluated the scope and depth of the plans, including the credentials, experience, objectivity, and independence of the designated assessors.


assessment plans and evaluated the scope and depth of the plans, including the
This review found the plan acceptable and was documented in NRC Inspection Report No. 05000346/2005008. Subsequent to this review, the licensee submitted Revision 1 of the plan on October 14, 2005. This revision was submitted to substitute one of the proposed team members. The inspectors verified that the individuals designated to perform the assessment were sufficiently independent from FENOC and that they brought the appropriate credentials and experience necessary to accomplish the assessment.


credentials, experience, objectivity, and independence of the designated assessors.
The plan included three team members on site for a period of 1 week and the other three team members on site for both weeks. The purpose of the plan was to provide an independent and comprehensive assessment of the Engineering Program effectiveness.


This review found the plan acceptable and was documented in NRC Inspection Report
The plan included details to assess Engineering effectiveness in the following areas:
 
* Plant Modification Process;
No. 05000346/2005008. Subsequent to this review, the licensee submitted Revision 1
* Calculation Process;
 
* System Engineering;
of the plan on October 14, 2005. This revision was submitted to substitute one of the
* Corrective Action Program;
 
* Actions taken in response to Areas of Improvement identified during the 2004 Independent Assessment of Engineering;
proposed team members. The inspectors verified that the individuals designated to
* Self assessment.
 
perform the assessment were sufficiently independent from FENOC and that they
 
brought the appropriate credentials and experience necessary to accomplish the assessment.
 
The plan included three team members on site for a period of 1 week and the other three team members on site for both weeks. The purpose of the plan was to provide an
 
independent and comprehensive assessment of t he Engineering Program effectiveness.
 
The plan included details to assess Engineering effectiveness in the following areas:*Plant Modification Process;*Calculation Process;
*System Engineering;
*Corrective Action Program;
*Actions taken in response to Areas of Improvement identified during the 2004 Independent Assessment of Engineering;*Self assessment.


The scope and depth of the proposed plan appeared adequate to accomplish the objective of assessing Engineering Program effectiveness.
The scope and depth of the proposed plan appeared adequate to accomplish the objective of assessing Engineering Program effectiveness.


The NRC inspectors observed portions of the assessment activities during the second on site week including team interviews of plant staff. The interviews were found to be
The NRC inspectors observed portions of the assessment activities during the second on site week including team interviews of plant staff. The interviews were found to be thorough and probing with very open communication between plant staff and the team.
 
thorough and probing with very open communication between plant staff and the team.
 
The inspectors also met with the team members to discuss implementation of the
 
approved assessment plan, and performed independent review of a sample of


engineering products reviewed by the team. The team conducted a debrief at the end of 23 on site activities and provided preliminary conclusions. The team identified good improvement in several areas since the 2004 assessment and did not identify any areas for improvement. The NRC inspectors found t he implementation of the assessment plan to be acceptable and will review the final team report when it becomes available.
The inspectors also met with the team members to discuss implementation of the approved assessment plan, and performed independent review of a sample of engineering products reviewed by the team. The team conducted a debrief at the end of on site activities and provided preliminary conclusions. The team identified good improvement in several areas since the 2004 assessment and did not identify any areas for improvement. The NRC inspectors found the implementation of the assessment plan to be acceptable and will review the final team report when it becomes available.


===.2 Safety Culture/Safety Conscious Work Environment Independent Assessment===
===.2 Safety Culture/Safety Conscious Work Environment Independent Assessment===
Line 1,090: Line 488:
On December 14, 2005, Dr. Sonja Haber of Human Performance Analysis Corp.
On December 14, 2005, Dr. Sonja Haber of Human Performance Analysis Corp.


presented to plant personnel the results of the independent assessment of Davis-
presented to plant personnel the results of the independent assessment of Davis-Besse's Safety Culture and Safety Conscious Work Environment. She described the inspection procedure which included: functional analysis (document review), an organizational and safety culture survey, structured interviews, Behaviorally Anchored Rating Scales (BARS), and observations. They received 571 (71 percent) responses to the survey, conducted 97 interviews, 376 BARS representing 11 organizational behaviors, and conducted 70 observations of 20 different activities. The results were presented in accordance with the six characteristics of Safety Culture from model being used. She listed strengths, areas in need of attention, and areas for improvement (AFI),then rated each characteristic in regard to its effectiveness. Results were:
 
* Safety is a clearly recognized value was rated as Effective. There were several strengths and areas in need of attention but no AFIs.
Besse's Safety Culture and Safety Conscious Work Environment. She described the
* Accountability for safety is clear was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - A long-term strategy to sustain commitment to safety needs to be developed. Management actions were perceived to be top down and externally driven. Two departments were singled out as having a tendency to avoid responsibility (Operations and Security).
 
* Safety is integrated into all activities was rated as Effective. There were several strengths and areas in need of attention but no AFIs.
inspection procedure which included: functional analysis (document review), an
* A safety leadership process exists was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - Values and attitudes have improved since 2004, but only to 2003 levels. Leadership needed to demonstrate continued improvement and sustainability. It was also noted that some work groups (Operations, Security, maintenance, Chemistry, and Training)were not aligned on safety.
 
* Safety culture is learning driven was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - learning from experience needs to be internalized and recognized as important.
organizational and safety culture survey, st ructured interviews, Behaviorally Anchored Rating Scales (BARS), and observations. They received 571 (71 percent) responses to
* Safety Conscious Work Environment was rated as Effective. There were several areas in need of attention but no AFIs.
 
the survey, conducted 97 interviews, 376 BARS representing 11 organizational
 
behaviors, and conducted 70 observations of 20 different activities. The results were
 
presented in accordance with the six characteristics of Safety Culture from model being
 
used. She listed strengths, areas in need of attention, and areas for improvement (AFI),
then rated each characteristic in regard to its effectiveness. Results were:*"Safety is a clearly recognized value" was rated as Effective. There were several strengths and areas in need of attention but no AFIs.*"Accountability for safety is clear" was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - A long-term strategy
 
to sustain commitment to safety needs to be developed. Management actions
 
were perceived to be top down and exte rnally driven. Two departments were singled out as having a tendency to avoid responsibility (Operations and
 
Security).*"Safety is integrated into all activities" was rated as Effective. There were several strengths and areas in need of attention but no AFIs.*A "safety leadership process exists" was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - Values and
 
attitudes have improved since 2004, but only to 2003 levels. Leadership needed
 
to demonstrate continued improvement and sustainability. It was also noted that
 
some work groups (Operations, Security, maintenance, Chemistry, and Training)
 
were not aligned on safety.*"Safety culture is learning driven" was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - learning from
 
experience needs to be internalized and recognized as important.*Safety Conscious Work Environment was rated as Effective. There were several areas in need of attention but no AFIs.


A written report with more detail is expected from Human Performance Analysis Corp. in mid-February 2006 and will be reviewed by the inspectors.
A written report with more detail is expected from Human Performance Analysis Corp. in mid-February 2006 and will be reviewed by the inspectors.


244OA6Meetings.1Exit Meeting The inspectors presented the inspection results to Mr. M. Bezilla, and other members of licensee management on January 6, 2006. The licensee acknowledged the findings
{{a|4OA6}}
==4OA6 Meetings==


presented. No proprietary information was identified..2Interim Exit Meetings Interim exits were conducted for:
===.1 Exit Meeting===
*Emergency Preparedness inspection with Mr. J. Vetter on November 30, 2005; and*Operator Requalification Program Examination Result Review with Mr. D. Lange on December 20, 2005.4OA7Licensee-Identified Violations The following violations of very low safety significance (Green) were identified by the licensee and are violations of NRC requirements which meet the criteria of Section VI of


the NRC Enforcement Policy, NUREG-1600, for being dispositions as NCVs.*Contrary to 10 CFR 50.9(a), the licensee's letter of February 13, 1996, which submitted responses to NRC Generic Letter 95-07, "Pressure Locking and
The inspectors presented the inspection results to Mr. M. Bezilla, and other members of licensee management on January 6, 2006. The licensee acknowledged the findings presented. No proprietary information was identified.


Thermal Binding of Safety-Related Power Operated Gate Valve," contained
===.2 Interim Exit Meetings===


incomplete or inaccurate information on the operation of pressurizer vent stop
Interim exits were conducted for:
* Emergency Preparedness inspection with Mr. J. Vetter on November 30, 2005; and
* Operator Requalification Program Examination Result Review with Mr. D. Lange on December 20, 2005.


valve, RC200. The information provided was material to the NRC's decision
{{a|4OA7}}
 
==4OA7 Licensee-Identified Violations==
accepting the response to Generic Letter 95-07. Revised information was
 
provided to the NRC by the licensee's letter of August 5, 2005. The issue of
 
incorrect or inaccurate information was identified in the licensee's corrective
 
action program as CR 04-00759 and CR 04-05581. This finding was processed
 
using the traditional enforcement process and was classified as a Severity
 
Level IV violation. This finding is of very low safety significance because there is
 
no confirmation that the valve RC200 would not have functioned when needed.
 
Additionally, the licensee has developed procedural steps to further ensure that
 
the valve would not become thermally bound in an undesired position.* Contrary to 10 CFR 50.65(a)(4), licensee personnel performed scheduled activities in a sequence that was not assessed for risk resulting in an inadvertent
 
entry to licensee risk category of orange. On October 3, 2005, for approximately
 
43 minutes, licensee personnel concurrently performed scheduled activities on
 
decay heat pump 1 and the emergency instrument air compressor. This placed
 
the plant in an unreviewed orange risk category. This event is documented in
 
CR 05-05334. This finding is of very low safety significance because the
 
concurrent work activities did not represent a loss of safety function or loss of a
 
safety train for greater than limits in TSs.
 
25*Contrary to TS 6.8.1 and Regulatory Guide 1.33, licensee personnel positioned a valve in violation of DB-OP-01002 by not performing the required
 
independent verification. On November 15, 2005, CCW train 2 was
 
inoperable and it would not have been able to fulfill its safety function. This
 
condition existed for 14.1 hours prior to discovery. This placed the plant in
 
TS action statements and an unreviewed orange risk category. This event is
 
documented in CR 05-05650 and CR 05-05666. This finding is of very low safety


significance because the mispositioned valve event did not represent a loss of
The following violations of very low safety significance (Green) were identified by the licensee and are violations of NRC requirements which meet the criteria of Section VI of the NRC Enforcement Policy, NUREG-1600, for being dispositions as NCVs.
* Contrary to 10 CFR 50.9(a), the licensees letter of February 13, 1996, which submitted responses to NRC Generic Letter 95-07, Pressure Locking and Thermal Binding of Safety-Related Power Operated Gate Valve, contained incomplete or inaccurate information on the operation of pressurizer vent stop valve, RC200. The information provided was material to the NRCs decision accepting the response to Generic Letter 95-07. Revised information was provided to the NRC by the licensees letter of August 5, 2005. The issue of incorrect or inaccurate information was identified in the licensee's corrective action program as CR 04-00759 and CR 04-05581. This finding was processed using the traditional enforcement process and was classified as a Severity Level IV violation. This finding is of very low safety significance because there is no confirmation that the valve RC200 would not have functioned when needed.


safety function or loss of a safety train for greater than limits in TSs.
Additionally, the licensee has developed procedural steps to further ensure that the valve would not become thermally bound in an undesired position.
* Contrary to 10 CFR 50.65(a)(4), licensee personnel performed scheduled activities in a sequence that was not assessed for risk resulting in an inadvertent entry to licensee risk category of orange. On October 3, 2005, for approximately 43 minutes, licensee personnel concurrently performed scheduled activities on decay heat pump 1 and the emergency instrument air compressor. This placed the plant in an unreviewed orange risk category. This event is documented in CR 05-05334. This finding is of very low safety significance because the concurrent work activities did not represent a loss of safety function or loss of a safety train for greater than limits in TSs.
* Contrary to TS 6.8.1 and Regulatory Guide 1.33, licensee personnel positioned a valve in violation of DB-OP-01002 by not performing the required independent verification. On November 15, 2005, CCW train 2 was inoperable and it would not have been able to fulfill its safety function. This condition existed for 14.1 hours prior to discovery. This placed the plant in TS action statements and an unreviewed orange risk category. This event is documented in CR 05-05650 and CR 05-05666. This finding is of very low safety significance because the mispositioned valve event did not represent a loss of safety function or loss of a safety train for greater than limits in TSs.


ATTACHMENT:
ATTACHMENT:  


=SUPPLEMENTAL INFORMATION=
=SUPPLEMENTAL INFORMATION=
Line 1,213: Line 548:


===Opened and Closed===
===Opened and Closed===
05000346/2005009-01FINFailure to Control Loose Material Adjacent to the
: 05000346/2005009-01          FIN    Failure to Control Loose Material Adjacent to the Switchyard
Switchyard05000346/2005009-02NCVInadequate Design Control During Modification of the
: 05000346/2005009-02          NCV    Inadequate Design Control During Modification of the Containment Hydrogen Analyzer Moisture Trap Drainage System
Containment Hydrogen Analyzer Moisture Trap Drainage


System
===Closed===
===Closed===
05000346/2005002-00LERInoperable Battery Due to Procedure Deficiency and
: 05000346/2005002-00          LER    Inoperable Battery Due to Procedure Deficiency and Inadequate Reviews Attachment
Inadequate Reviews  


==LIST OF DOCUMENTS REVIEWED==
==LIST OF DOCUMENTS REVIEWED==


}}
}}

Revision as of 22:39, 23 November 2019

IR 05000346-05-009, on 10/1/2005 - 12/31/2005; Davis-Besse Nuclear Power Station; Adverse Weather, Maintenance Effectiveness
ML060340155
Person / Time
Site: Davis Besse Cleveland Electric icon.png
Issue date: 02/01/2006
From: Christine Lipa
NRC/RGN-III/DRP/RPB4
To: Bezilla M
FirstEnergy Nuclear Operating Co
References
EA-03-0214 IR-05-009
Download: ML060340155 (38)


Text

ary 1, 2006

SUBJECT:

DAVIS-BESSE NUCLEAR POWER STATION NRC INTEGRATED INSPECTION REPORT 05000346/2005009

Dear Mr. Bezilla:

On December 31, 2005, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your Davis-Besse Nuclear Power Station. The enclosed inspection report documents the inspection findings which were discussed on January 6, 2006, with you and other members of your staff.

The inspection examined activities conducted under your license as they relate to safety and compliance with the Commissions rules and regulations and with the conditions of your license.

The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel.

The report documents one NRC identified finding and one self-revealing finding of very low safety significance. One of these findings was determined to involve a violation of NRC requirements. Additionally, three licensee-identified violations which were determined to be of very low safety significance are listed in this report. However, because of the low safety significance and because they are entered into your corrective action program, the NRC is treating these violations as non-cited violations (NCVs) consistent with Section VI.A.1 of the NRC Enforcement Policy. If you contest any NCV in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D.C. 20555-0001; with copies to the Regional Administrator Region III, 2443 Warrenville Road, Suite 210, Lisle, IL 60532-4352; the Director, Office of Enforcement, United States Nuclear Regulatory Commission, Washington, D.C. 20555-001; and the NRC Resident Inspector at Davis-Besse. In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its Enclosure will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Sincerely,

/RA/

Christine A. Lipa, Chief Projects Branch 4 Division of Reactor Projects Docket No. 50-346 License No. NPF-3 Enclosure: Inspection Report 05000346/2005009 w/Attachment: Supplemental Information cc w/encl: The Honorable Dennis Kucinich G. Leidich, President - FENOC J. Hagan, Senior Vice President of Operations and Chief Operating Officer Director, Plant Operations Manager - Regulatory Compliance D. Jenkins, Senior Attorney, FirstEnergy Ohio State Liaison Officer R. Owen, Administrator, Ohio Department of Health Public Utilities Commission of Ohio President, Board of County Commissioners of Lucas County President, Ottawa County Board of Commissioners

SUMMARY OF FINDINGS

IR 05000346/2005009; 10/1/2005 - 12/31/2005; Davis-Besse Nuclear Power Station; Adverse

Weather, Maintenance Effectiveness.

This report covers a 13 week period of resident inspection. The inspection was conducted by Region III inspectors and resident inspectors. Two Green findings, one of which was a non-cited violation (NCV), were identified. The significance of most findings is indicated by their color (Green, White, Yellow, Red) using Inspection Manual Chapter (IMC) 0609, Significance Determination Process (SDP). Findings for which the SDP does not apply may be Green or be assigned a severity level after NRC management review. The NRCs program for overseeing the safe operation of commercial nuclear power reactors is described in NUREG-1649, Reactor Oversight Process, Revision 3, dated July 2000.

NRC-Identified and Self-Revealing Findings

Cornerstone: Initiating Events

Green.

A finding of very low safety significance was identified by the inspectors for failure to control loose materials, located immediately adjacent to the switchyard, which could be carried into the switchyard by high winds. Once identified the licensee took action to relocate the material.

The issue was more than minor because, if left uncontrolled, the loose items could impact the proper operation of the switchyard and in turn lead to a more significant safety concern. The issue was of very low safety significance because the finding did not contribute to the likelihood of a primary or secondary system loss of coolant accident initiator; the finding did not contribute to both the likelihood of a reactor trip and the likelihood that mitigation equipment or functions will not be available; and the finding did not increase the likelihood of a fire or internal or external flooding. The issue was not considered a violation of regulatory requirements because it did not affect safety-related structures, systems, or components. (Section 1R01)

Cornerstone: Barrier Integrity

Green.

A Green self-revealing non-cited violation (NCV) of 10 CFR 50, Appendix B,

Criterion III, was identified for the licensee (1) failing to fully understand the actual system configuration during and after a system modification, (2) installing incorrect solenoid valves in the system during the engineering change implementation, and (3) not performing adequate post modification testing to verify system functionality prior to returning the channel 1 and channel 2 Containment Gas Analyzers to service. The failure resulted in the plant being operated in Mode 1 and Mode 2 with two hydrogen analyzers inoperable in excess of the allowed Technical Specification outage time. The licensee restored the Analyzers to an operable status and entered the issue into the corrective action program for resolution.

The finding is greater than minor because it: (1) involved the configuration control attribute of the Barrier Integrity Cornerstone; and (2) affected the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. This finding is unrelated to structures, systems and components that are needed to prevent accidents from leading to core damage. The inspectors used Inspection Manual Chapter (IMC) 0609,

"Significance Determination Process," Appendix H, Containment SDP to evaluate this finding. Based on this evaluation, the finding has very low safety significance. The cause of the finding is related to the cross-cutting area of human performance.

(Section 1R12)

B. Licensee-Identified Findings Violations of very low safety significance, which were identified by the licensee, have been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensees corrective action program. The violations and corrective actions are listed in Section 4OA7 of this report.

REPORT DETAILS

Summary of Plant Status

At the beginning of the inspection period, the plant was operating at approximately 100 percent power. The licensee conducted a short planned outage from October 28, 2005, until October 31, 2005, to correct the cause of reactor coolant system identified leakage. The licensee also reduced power to approximately 60 percent to support main feed pump 2 maintenance from November 26, 2005, until November 28, 2005.

Also during this inspection period, several brief power reductions of less than 10 percent also occurred. On each occasion, upon completion of the planned testing or maintenance, power was restored to approximately 100 percent. The plant operated at approximately 100 percent power for the remainder of the inspection period.

REACTOR SAFETY

Cornerstones: Initiating Events, Mitigating Systems, and Barrier Integrity

1R01 Adverse Weather

.1 Tornado and High Wind Preparation

a. Inspection Scope

The inspectors reviewed applicable licensee procedures and performed a walkdown of areas immediately adjacent to the Davis-Besse switchyard and exterior portions of the protected area. The inspectors evaluated the licensees preparations for adverse weather, including conditions that could result from tornados and high winds. The inspectors focused on plant specific design features for the systems and implementation of the procedures for responding to or mitigating the effects of adverse weather. The inspectors also determined whether operator actions specified by plant specific procedures were appropriate.

The inspectors evaluated readiness for seasonal susceptibilities for the following systems:

  • the switchyard and immediately adjacent areas; and
  • exterior portions of the protected area.

This constitutes one sample.

b. Findings

Introduction The inspectors identified a Green finding for the licensees failure to control materials in the areas immediately adjacent to the Davis-Besse switchyard. Specifically, the inspectors identified multiple wooden pallets stacked next to the switchyard fence, a large amount of extraneous loose materials located near the north side of the switchyard, loose material located adjacent to service building 2, and several loose small metal plates in the vicinity of the spare transformers also located near the east side of the switchyard. Once identified the licensee took action to relocate the material. No violation of regulatory requirements occurred.

Description On November 10, 2005, the inspectors conducted a walkdown of the areas immediately adjacent to the switchyard and the exterior portions of the protected area in the vicinity of the large station transformers to assess the licensees preparations to preclude or minimize potential damage from high velocity winds associated with severe thunderstorms or tornados. During the walkdown of the areas immediately adjacent to the switchyard, the inspectors noted multiple wooden pallets stacked next to the switchyard fence, a large amount of extraneous loose materials located near the north side of the switchyard, loose material located adjacent to service building 2, and several loose small metal plates in the vicinity of the spare transformers also located near the east side of the switchyard. The inspectors concluded that high velocity winds combined with the close proximity of these materials to the switchyard increased the potential to lose offsite power sources.

The licensee has a reactive procedure for tornado warnings which directed plant personnel to inspect the Protected Area and switchyard for potential missiles and reduce missile potentials where practical. The inspectors did not identify any procedures to prepare for adverse weather conditions with respect to tornado and high wind conditions, nor did the inspectors identify any preparatory procedures to control loose materials in the protected area or switchyard. The inspectors found no specified actions or proactive elements that required the licensee to minimize the number of missile hazards prior to seasonal susceptibilities to occurrences of high winds.

Licensee Procedure NG-DB-00215, Material Readiness and Housekeeping Inspection Program, Revision 06, established responsibilities and criteria for the performance of plant material and housekeeping readiness inspections. The procedure did not address the inspection of out-of-plant material storage areas. Licensee procedure RA-EP-02810, Tornado, Revision 03, discussed securing loose gear and material; however, this procedure would only be used if the plant was notified of a tornado watch or tornado warning. Procedure RA-EP-02810 did not establish criteria for what constituted loose gear or material. Additionally, the licensees Quality Assurance Program Manual commits the licensee to American National Standards Institute (ANSI) N45.2.3-1973, Housekeeping During the Construction Phase of Nuclear Power Plants during the plant operational phase. This standard required scheduled inspections of work areas and construction practices to ensure protection of installed equipment from weather-related movement of stored items.

Analysis The inspectors reviewed this finding using the guidance contained in Appendix B, Issue Disposition Screening, of Inspection Manual Chapter 0612, Power Reactor Inspection Reports. The inspectors determined that the licensees failure to control material near risk significant equipment or to appropriately apply the standards contained within ANSI N45.2.3-1973 was a performance deficiency which affected the Initiating Events cornerstone. The inspectors determined that the finding was more than minor because, if left uncontrolled, the loose items located immediately adjacent to the switchyard would become a more significant safety concern. The inspectors determined that the finding warranted evaluation using the Significance Determination Process because the finding was associated with an increase in the likelihood of an initiating event.

The inspectors evaluated the finding using IMC 0609, Appendix A, Attachment 1, Significance Determination of Reactor Inspection Findings for At-Power Situations.

Using the Phase 1 Significance Determination Process worksheet for the initiating event cornerstone, transient initiator contributor, the inspectors determined that the finding did not contribute to the likelihood of a primary or secondary system loss of coolant accident initiator; the finding did not contribute to both the likelihood of a reactor trip and the likelihood that mitigation equipment or functions would not be available; and the finding did not increase the likelihood of a fire or internal or external flooding. Therefore, the finding was determined to be of very low safety significance (Green).

Enforcement The inspectors concluded that procedures were inadequate relative to applying housekeeping standards to risk significant equipment. Because no 10 CFR 50, Appendix B, components were impacted by the finding (FIN 05000346/2005009-01), no violation of regulatory requirements occurred. The licensee included this finding in their corrective action program as CR 06-00027.

.2 Cold Weather Preparations

a. Inspection Scope

The inspectors observed the implementation of compensatory measures, contained in procedure DP-OP-06913, Seasonal Plant Preparation Checklist, Revision 11, on several occasions during this inspection period when frazil ice was present at the service water intake crib. The compensatory measures include increased monitoring of service water fore-bay and lake water levels and the use of portable equipment to provide an alternate means of pumping water from Lake Erie to the service water intake canal.

This constitutes one sample.

b. Findings

No findings of significance were identified.

1R04 Equipment Alignment

a. Inspection Scope

The inspectors conducted a partial walkdown of the decay heat system train 1 subsequent to system restoration following performance of the decay heat system train 2 preventive maintenance activities on November 15, 2005. The inspectors reviewed whether the system was correctly aligned to perform its designed safety function. The inspectors referenced licensee system valve line-up documents and system drawings during the walkdown. The walkdown included selected switch and valve position checks, and verification of electrical power availability to critical components. Finally, the inspectors evaluated other elements, such as material condition, housekeeping, and component labeling. The documents referenced during the performance of the walkdown are listed in the attached List of Documents Reviewed.

This constitutes one sample.

b. Findings

No findings of significance were identified.

1R05 Fire Protection

.1 Area Inspections

a. Inspection Scope

The inspectors conducted fire protection inspections focused on the availability, accessibility, and condition of fire fighting equipment, the control of transient combustibles, and the condition and status of installed fire barriers. The inspectors selected fire areas for inspection based on their overall contribution to internal fire risk, as documented in the Individual Plant Examination of External Events, and their potential to impact equipment which could initiate a plant transient. Inspectors checked that fire hoses and extinguishers were in their designated locations and available for immediate use, that fire detectors and sprinklers were unobstructed, that transient material loading was within the analyzed limits, and that fire doors, dampers, and penetration seals appeared to be in satisfactory condition.

The following areas were inspected:

  • auxiliary building main corridor elevation 603 feet (Fire Area V, Room 404);
  • diesel fire pump room (Fire Area BE-1, Room 51);
  • safety battery rooms (Fire Areas X & Y, Rooms 428A & 429B);
  • emergency diesel 1 room (Fire Area K, Room 318); and

This constitutes six samples.

b. Findings

No findings of significance were identified.

.2 Fire Brigade Drill

a. Inspection Scope

On October 7, 2005, the inspectors observed a fire brigade activation which was required for response to a fire detection alarm in emergency diesel generator 2 room.

The inspectors determined whether protective clothing/turnout gear was properly donned; the fire area was entered in a controlled manner; response times were within licensee procedural guidelines; sufficient fire fighting equipment was brought to the scene by the fire brigade to properly perform their firefighting duties; and, the fire brigade leaders fire fighting directions were thorough, clear, and effective.

This constitutes one sample.

b. Findings

No findings of significance were identified.

1R11 Licensed Operator Requalification Program

.1 Annual Operating Test Results

a. Inspection Scope

The inspectors reviewed the overall pass/fail results of the annual operating examination which consisted of Job Performance Measure (JPM) and simulator operating tests (required to be given per 10 CFR 55.59(a)(2)) administered by the licensee. The operating testing was conducted in October, November, and December 2005. The results were compared with the significance determination process in accordance with NRC Manual Chapter 0609I, Operator Requalification Human Performance Significance Determination Process (SDP).

This constitutes one sample.

b. Findings

No findings of significance were identified.

.2 Resident Inspector Quarterly Review

a. Inspection Scope

On October 25, 2005, the inspectors observed an operating crew during simulator annual requalification training and attended the post-session licensee controller critique.

The inspectors reviewed crew performance in the areas of:

  • clarity and formality of communications;
  • ability to take timely action in a safe direction;
  • ability to prioritize, interpret and respond to alarms;
  • procedure use;
  • oversight and direction from supervisors; and
  • group dynamics.

Crew performance in these areas was compared to licensee management expectations and guidelines as presented in Davis-Besse operational and administrative procedures.

The operational scenario included challenges associated with the rod control system, a reactor coolant pump, and the ability to control the cool down of the reactor coolant system.

This constitutes one sample.

b. Findings

No findings of significance were identified.

1R12 Maintenance Effectiveness

a. Inspection Scope

The inspectors reviewed the licensees handling of performance issues associated with the:

  • station and instrument air system;
  • containment gas monitoring system.

The reviews consisted of evaluating the following activities:

  • The licensees use of the condition report process in identifying deficiencies and issues with system equipment;
  • Whether equipment performance issues were correctly categorized per the systems scoping sheet performance criteria for reliability;
  • Whether the licensee was effectively tracking key parameters and identifying system trends and monitoring for signs of component failures;
  • Appropriateness of goals and corrective actions associated with long-term reliability;
  • Whether the physical condition of the system appeared consistent with status as reflected in condition reports and open work orders;
  • Whether the licensees corrective actions included extent of condition; and
  • Appropriateness of maintenance rule system status classification with emphasis on whether current reclassification appeared appropriate for the equipments recent history.

This constitutes three samples.

b. Findings

Introduction.

A self-revealing violation of 10 CFR 50, Appendix B, Criterion III, was identified during the evaluation of a failed periodic functional check associated with the containment hydrogen analyzer channel 1. The evaluation identified that during an engineering change which modified containment hydrogen analyzer channels 1 and 2, the licensee failed to: 1) identify the presence of check valves located in the drain lines for each of the analyzers moisture separators, 2) install the correct type of solenoid operated drain valve in the drain lines for each of the analyzers moisture separators, and 3) perform a post-maintenance test which adequately verified the function of the modified systems. The failure to ensure that design control measures were properly implemented resulted in the plant being operated in Mode 1 and Mode 2 with two hydrogen analyzers inoperable in excess of the allowed Technical Specification (TS)outage time.

Description.

Licensee Event Report 2003-005-01, Containment Gas Analyzer Heat Exchanger Valves Found Closed Rendering the Containment Gas Analyzer Inoperable, discussed, in part, inadequate moisture removal systems associated with each of the containment gas analyzer channels. The existing systems relied on a non safety-related air supply, which may not be available post accident, for removal of water from the moisture system moisture traps. The impact of flooding the moisture traps would be that condensate would fill the analyzer piping and cause the conductivity detector to indicate erroneous containment hydrogen concentration levels. To correct this deficiency, the licensee developed and implemented Engineering Change 03-0384-00, Containment Gas Analyzer System (CGAS) Moisture Trap Discharge. As part of this engineering change, the drain systems associated with the moisture traps for each of the CGAS channels were modified to employ gravity as the motive force to drain the moisture traps, eliminating the need for the non safety-related air supply to perform this function.

On September 29, 2005, a performance of DB-MI-04729, Channel 1 Containment Vessel Atmospheric H2 Analyzer Condensate Moisture Removal System Inspection and Moisture Trap System Functional Test, Revision 01, revealed that the condensate would not drain from the moisture trap as required. Subsequent licensee investigations identified the following information.

  • The drain line from each analyzers moisture trap contained an undocumented check valve. Since the check valves required approximately 2 psi to operate, they would have prevented each analyzers gravity drainage system from operating properly.
  • During the implementation of the engineering change, pilot-operated solenoid valves, instead of direct acting solenoid valves, were installed in the drain line from each analyzers moisture traps. Direct acting solenoid valves were initially selected based on the fact that the valve required no differential pressure to operate. Since the pilot-operated solenoid valves that were installed required a differential pressure of up to 1 psi to operate and the existing system configuration only provided a differential pressure of approximately 0.1 psi, the valves could have prevented each analyzers gravity drainage system from operating properly.
  • The moisture trap drainage system post-installation testing was inadequate to verify the functionality of the modification. Although an adequate post-installation test would not have prevented the configuration control issues associated with the presence of undocumented check valves or the installation of the wrong type of solenoid valve, it would have identified the latent configuration control issues prior to returning inoperable systems to service.

Technical Specification 3.6.4.1 required both hydrogen analyzers to be operable or a plant shutdown commenced in 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. On October 3, 2005, based on the results of investigations, which indicated that deficient conditions impacted both hydrogen analyzers, the licensee declared both hydrogen analyzers to be inoperable. Sufficient corrective actions were completed within the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> time frame, therefore, a plant shutdown was not required.

Corrective actions taken by the licensee included: the removal of the undocumented check valves from each analyzers drain line; the replacement of the pilot-operated solenoid valves with direct acting solenoid valves; successful completion of moisture trap functional tests for both analyzers; and plans to perform a detailed configuration walkdown for the CGAS cabinet.

Analysis.

In accordance with IMC 0609, Appendix A, Attachment 1, the inspectors performed an SDP Phase 1 screening and determined that the issue affected the Reactor Safety Strategic Performance Area. The finding was more than minor because it:

(1) involved the configuration control attribute of the Barrier Integrity Cornerstone; and
(2) affected the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events.

This finding is unrelated to SSCs that are needed to prevent accidents from leading to core damage. To determine if this finding had an effect on Large Early Release Frequency, the inspectors used MC 0609, "Significance Determination Process,"

Appendix H, Containment Integrity SDP. The finding is characterized as a Type B finding (having no impact on Core Damage Frequency) and was compared to Table 6.1 in Appendix H. The inspectors determined that the hydrogen analyzer had no impact on the containment-related SSCs listed in Table 6.1 (i.e. containment penetration seals, containment isolation valves or purge and vent lines) and would not influence the Large Early Release Frequency. Based on this, the finding was determined to be of very low safety significance. The inspectors also determined that the primary cause of this finding was related to the cross-cutting area of human performance in that there was a lack of attention to detail in specifying valves to be installed and performing post modification testing and in that reference documents did not show all components installed in the system.

Enforcement.

The performance deficiency associated with this event is the failure of the licensee to adequately implement design control measures during the implementation of the modification to the drainage systems for the channel 1 and channel 2 containment hydrogen analyzers. 10 CFR 50, Appendix B, Criterion III, Design Control, requires, in part, that design changes are required to be subjected to design control measures commensurate with those applied to the original design. Contrary to the requirements of Criterion III, licensee design control measures were inadequate during the implementation of the engineering change which modified the containment gas analyzer system moisture trap discharge system. Specifically, the licensee did not fully understand the configuration of the system during and after the modification, incorrect components were installed in the system during the engineering change implementation, and inadequate post modification testing failed to verify system functionality prior to returning the channel 1 and channel 2 containment gas analyzers to service. The failure resulted in the plant being operated in Mode 1 and Mode 2 with two hydrogen analyzers inoperable in excess of the allowed TS outage time. Because of the very low safety significance and because the issue has been entered into the licensees corrective action program (CRs 05-05217, 05-05256, 05-5349, and 05-05379) it is being treated as a Non-Cited Violation, consistent with Section VI.A of the NRC Enforcement Policy (NCV 05000346/2005009-02).

1R13 Maintenance Risk Assessment and Emergent Work Evaluation

a. Inspection Scope

The inspectors reviewed the licensees response to risk significant activities. These activities were chosen based on their potential impact on increasing overall plant risk.

The inspections were conducted to review whether the planning, control, and performance of the work were done in a manner to reduce overall plant risk and minimize the duration where practical. Also, the inspection reviewed whether contingency plans were in place when appropriate. The inspectors utilized the licensees daily configuration risk assessments, observations of shift turnover meetings, observations of daily plant status meetings, and the documents listed at the end of this report to determine whether the equipment configurations had been properly listed, that protected equipment had been identified and was being controlled where appropriate, that significant aspects of plant risk were being communicated to the necessary personnel, and that, as necessary, existing work plans were adjusted to accommodate the change in planned equipment operability. The inspectors evaluated the following licensee activities:

  • During the period of November 9, 2005 through November 10, 2005, the inspectors reviewed the licensees initial planning and work schedule adjustments associated with the unexpected trip of reactor protection system channel 4 trip on high flux and high flux relative to flow. During this time period, the inspectors also reviewed the licensees work plans for identifying the cause of the trip and their plans for addressing the issue.
  • On October 12, 2005, the licensee determined that during the preceding work week they had unintentionally entered an orange risk condition for approximately 43 minutes while work activities were conducted in parallel that were originally evaluated for risk significance as being worked in series. The inspectors reviewed the issue including a review of the work activities and the response of the licensees organization to the event.
  • On November 15, 2005, the licensee determined that, during the preceding shift, an orange risk condition was unintentionally entered for approximately 14.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />. This occurred when an equipment operator was placing the component cooling water (CCW) pump 2 back in service and failed to open the CCW heater exchanger 2 service water outlet valve (SW38) as specified in the procedure he was using.
  • On November 26, 2005, the licensee determined that it would be necessary to reduce reactor power to approximately 60 percent to permit removal of main feed pump 2 from service due to a step increase in vibration levels.

This constitutes four samples.

b. Findings

Two specific issues which involved Licensee-Identified Violations were identified during the review of these maintenance risk assessment and emergent work samples. These License-Identified Violations are further discussed in Section 4OA7 of this report.

1R14 Personnel Performance Related to Non-routine Plant Evolutions and Events

a. Inspection Scope

For the non-routine events described below, the inspectors reviewed operator logs, plant computer data and strip charts as appropriate, and operator performance, to determine if the response was in accordance with plant procedures:

  • On October 29, 2005, the inspectors observed portions of the power reduction from 100 percent power to approximately 12 percent and the planned trip of the reactor in preparation for a short planned outage. The inspectors focused on the operators ability to safely and conservatively maneuver the reactor plant during the power reduction and to perform the appropriate actions subsequent to the planned reactor trip. In addition, the inspectors verified that the control room operators safely established and maintained the plant in operational Mode 3 in preparation for the commencement of planned outage work.
  • On October 30, 2005, the inspectors continuously observed control room operators perform a reactor startup from the initial pulling of the group 5 regulating control rods until the point of adding heat was reached. The inspectors reviewed whether initial plant conditions supported a reactor startup, whether estimated critical boron concentration and estimated critical rod position had been properly calculated and were current for the time the reactor startup was occurring, and whether all reactivity manipulations were being controlled in a safe and conservative manner.
  • On October 31, 2005, the inspectors observed portions of the main turbine warming, initial turbine rolling, and the preparations for placing the main generator on the electric grid. The inspectors observed the control room operators parallel the main generator and synchronize it with the electric grid.

The inspectors specifically reviewed the actions of the control room operators during the paralleling operation and subsequent transfer of load off the turbine bypass valves.

This constitutes three samples.

b. Findings

No findings of significance were identified.

1R15 Operability Evaluations

a. Inspection Scope

The inspectors selected a condition report which discussed a potential operability issue for a risk significant component or system. The condition report and applicable licensee operability evaluation were reviewed to determine whether the operability of the component or system was appropriately supported. The inspectors compared the operability and design criteria in the appropriate sections of the USAR to the licensees evaluation of the issue to determine whether the systems was operable. Where compensatory measures were necessary to maintain operability, the inspectors determined whether compensatory measures were in place, would work as intended, and were properly controlled.

The following sample was evaluated:

  • CR 05-05184: Boron Injection Flowrate Calculation 034.009 Non-Conservative Assumptions.

The inspectors observed and reviewed the licensees response to the identification of non-conservative acceptance criteria associated with boric acid pump 2 due to incorrect calculation assumptions associated with maximum makeup tank pressure and minimum boric acid addition tank level. Specifically, the inspectors reviewed the licensees initial assessment of boric acid pump 2 operability, Standing Order 05-015 and associated 10 CFR 50.59 screening document which provided guidance to operations personnel regarding the operation of boric acid pump 2, and the licensees long term corrective actions to correct the issue.

This constitutes one sample.

b. Findings

No findings of significance were identified.

1R16 Operator Workarounds

.1 Resident Inspector Cumulative Review

a. Inspection Scope

The inspectors performed a review of all the existing operator workarounds and control room deficiencies to determine whether their cumulative effect had a significant impact on plant risk or on the operators ability to respond to a transient or an accident. This involved reviewing all documented operator workarounds, control room deficiencies, and shift turnover sheets. The inspectors determined whether the licensee had appropriately classified the significance of the workarounds and deficiencies, whether the workarounds were reasonable, and whether the licensee had initiated the appropriate corrective actions, commensurate with the significance of the deficiency or workaround.

In addition, the inspectors reviewed the licensees latest operator workaround and control room deficiency quarterly aggregate impact report (dated August 18, 2005). As part of the review, the inspectors evaluated the quality of the report and assessed the impact of any items that had been added or deleted since the report was prepared.

This constitutes one sample.

b. Findings

No findings of significance were identified.

.2 Review of Turbine Bypass Valves Operator Workaround

a. Inspection Scope

The inspectors reviewed licensee actions to address a Level 1 workaround associated with turbine bypass valves SP13B3 and SP13A1. Both valves, after initial opening, demonstrated the tendency to stick approximately 1/4 open. This may require operator action to shut the associated discharge isolation valves to fully secure flow through a stuck open valve. The inspectors reviewed whether this additional action would present a significant impact on the affected operator to perform actions to mitigate the effect of a significant plant event. The inspectors reviewed the procedures that would be used to isolate the valves and observed a demonstration by an operator of what actions he would take to isolate both valves.

This constitutes one sample.

b. Findings

No findings of significance were identified.

1R19 Post-Maintenance Testing

a. Inspection Scope

The inspectors reviewed the post-maintenance testing activities associated with the following scheduled and emergent work activities:

  • troubleshooting, repair, and post-maintenance testing of the safety features actuation system (SFAS) channel 1 low-low pressure bistable card during the period of October 3 though October 7, 2005;
  • troubleshooting, repair, and post-maintenance testing of the reactor protection system (RPS) channel one pressure/temperature bistable during the period of October 5, 2005, through October 9, 2005;
  • post-maintenance testing of the service water pump 1 and its discharge strainer on October 13, 2005, after scheduled preventive maintenance activities;
  • planned maintenance and post-maintenance testing of makeup pump 1 and associated discharge valves during the period of October 25 and 26, 2005;
  • troubleshooting, repair, and post-maintenance testing of the rod drive system, during the period of October 29 and 30, 2005;
  • post-maintenance testing of the auxiliary feedwater pump 1 and MS 106A, steam supply valve, on November 2, 2005, after scheduled preventive maintenance activities and relay replacement;
  • post-maintenance testing of auxiliary feed pump turbine 2 suction pressure interlock switch after switch replacement on November 12, 2005;
  • post-maintenance testing of main feed pump 2 on November 27 and 28, 2005, after disassembly, alignment and reassembly of the main feed pump to turbine coupling to reduce pump vibrations; The inspectors determined whether the testing was adequate for the scope of the maintenance work performed. The inspectors reviewed the acceptance criteria of the tests to ensure that the criteria were clear and that testing demonstrated operational readiness consistent with the design and licensing basis documents. Documents reviewed during this inspection are listed in the Attachment.

The inspectors attended select pre-job briefings to determine whether the impact of the testing was appropriately characterized. The inspectors also observed the performance of testing or reviewed post test results to verify the procedure was followed and that all testing prerequisites and acceptance criteria were satisfied. Following the completion of tests, the inspectors walked down the affected equipment to verify removal of the test equipment and to ensure the equipment could perform the intended safety function following the test.

This constitutes eight samples.

b. Findings

No findings of significance were identified.

1R20 Refueling and Outage Activities

a. Inspection Scope

The inspectors observed activities associated with a 3 day planned outage which began on October 29, 2005. The outage began when the reactor was tripped from approximately 12 percent power and ended when the main generator was placed on-line at approximately 12:52 on October 31, 2005. Throughout the brief outage, the plant was maintained in operational Mode 3. The inspectors reviewed the applicable transient and shutdown plant parameters, configuration management, clearance activities, shutdown risk assessments, conformance to applicable procedures, and compliance with TSs.

This constitutes one sample.

b. Findings

No findings of significance were identified.

1R22 Surveillance Testing

a. Inspection Scope

The inspectors observed surveillance tests or evaluated test data to determine whether the equipment tested met TSs, the Updated Safety Analysis Report, and licensee procedural requirements, and also demonstrated that the equipment was capable of performing its intended safety functions. The inspectors used the documents listed at the end of this report to determine if the test met the TS frequency requirements; that the test was conducted in accordance with the procedures, including establishing the proper plant conditions and prerequisites; that the test acceptance criteria were met; and that the results of the test were properly reviewed and recorded. The following surveillances were evaluated:

  • D1 Bus Undervoltage Units Monthly Functional Test (October 18, 2005);
  • Steam Feed Rupture Control System Logic Channel 2 Functional Test (October 19, 2005);
  • Moderator Temperature Coefficient Measurement by Boron Swap (December 04, 2005);
  • Channel Functional Test of Main Turbine and Feed Pump Turbine Hydraulic Oil Pressure Trips for Anticipatory Reactor Trip System Channel 4 (October 12, 2005) including review of potential preconditioning due to initial schedule of performing preventive maintenance tasks prior to surveillance;
  • Decay Heat/Low Pressure Injection pump 1 quarterly test (December 28, 2005);and
  • Main Turbine Master Trip Solenoid Valve operability testing and problem solving activities (December 29, 2005).

This constitutes eight samples.

b. Findings

No findings of significance were identified.

1R23 Temporary Plant Modifications

a. Inspection Scope

The inspectors reviewed the temporary modification and associated 10 CFR 50.59 screening against system requirements, including the Updated Safety Analysis Report and TS, to determine whether there were any effects on system operability or availability and if consistency with plant documentation and procedures was maintained. The inspectors observed portions of the implementation of the temporary modifications.

Additionally, the inspectors reviewed the work order governing the following work:

  • During the short plant outage which occurred October 29 through 31, 2005, the licensee investigated an abnormal vibration related noise emanating from the isophase duct located near the main generator bushing area during the operation of bus duct cooling when only one bus duct cooling fan was in operation. During the investigation, the licensee discovered at least one of the three damper blades associated with damper VC6052 was damaged. Since the dampers, located in the isophase air crossover duct, were normally operated fully open, the licensee decided to implement temporary modification 05-0041 to remove the six damper blades associated with dampers VC6052 and VC6053. The inspectors observed the implementation of this temporary modification and the restoration of power to the generator busses, which occurred on October 31, 2005.
  • Temporary modification 05-0015 which was for installation of a metal patch for main feedpump 2 inboard seal return fillet weld with a pinhole leak in the weld between the seal housing and the first pipe nipple.

This constitutes two samples.

b. Findings

No findings of significance were identified.

Cornerstone: Emergency Preparedness

1EP4 Emergency Action Level and Emergency Plan Changes

a. Inspection Scope

The inspectors performed screening reviews of Revision 24 of the Davis-Besse Nuclear Power Station Emergency Plan and Revision 05 of associated implementing procedure RA-EP-01500 to determine whether the changes made in these revisions decreased the effectiveness of the licensees emergency planning. The screening reviews of these revisions did not constitute an approval of the changes and, as such, the changes are subject to future NRC inspection to ensure that the emergency plan continues to meet NRC regulations.

This constitutes one sample.

b. Findings

No findings of significance were identified.

OTHER ACTIVITIES

4OA2 Identification and Resolution of Problems

.1 Daily Review

a. Inspection Scope

As required by Inspection Procedure 71152, Identification and Resolution of Problems, and in order to help identify repetitive equipment deficiencies or specific human performance issues for follow-up, the inspectors performed a daily screening of items entered into the licensees CAP. This screening was accomplished by reviewing documents entered into the licensee CAP and review of document packages prepared for the licensees daily Management Alignment and Ownership Meetings.

b. Findings

No findings of significance were identified.

.2 Semi-Annual Review to Identify Trends

a. Inspection Scope

As required by Inspection Procedure 71152, "Identification and Resolution of Problems,"

the inspectors performed a review of the licensees CAP and associated documents to identify trends that could indicate the existence of a more significant safety issue. The inspectors review was focused on repetitive equipment issues, but also considered the results of daily inspector CAP item screening discussed in Section 4OA2.1 above, licensee trending efforts, and licensee human performance results. The inspectors review included the 6-month period of July 2005 through December 2005. Inspectors also reviewed the Davis-Besse Oversight Assessment Report (third quarter 2005) and the most current operations department cognitive trending report (May through October, 2005). The review also included issues documented in the licensees system health reports and maintenance rule assessments. The inspectors compared and contrasted their results with the results contained in the licensees latest quarterly trend report.

Corrective actions associated with a sample of the issues identified in the licensees reports were reviewed for adequacy.

b. Assessment and Observations There were no findings of significance identified. The inspectors determined that the implementation of trending was adequate. The inspectors compared the licensee process results with the results of the inspectors daily screening and did not identify any discrepancies or potential trends that were not currently captured in the CAP or other licensee generated documents.

.3 Annual Sample: Environmental Qualification Program Elements

a. Inspection Scope

The inspectors chose to review Condition Report 05-05226, AFW Valves FV6451 and FV6452 Silicon Rubber Seals Replacement Not Identified, and reviewed how these environmentally qualified (EQ) seals and other EQ components were identified and flagged in the work control system as requiring conformance with EQ specifications.

The inspectors reviewed selected EQ governing documents and reviewed condition reports to observe if there were recurring problems with maintaining the EQ components.

b. Findings and Observations

During an environmental qualification program self-assessment, the licensee identified three maintenance procedures that did not capture EQ program requirements for auxiliary feedwater Target Rock solenoid valves, FV6451 and FV6452. The three procedures were also not identified in the procedure data base system as procedures with steps that implement EQ program requirements.

Valves FV6451 and FV6452 were added to the EQ program in the time period of 2003 after the licensee identified that components within the auxiliary feed pump rooms could be subjected to a steam environment after a high energy line break (HELB) in the turbine building. The licensee implemented a design change package (ECR-02-0627-00) to modify various components but determined that no work was necessary on valves FV6451 and FV6452 since the valves met EQ requirements even though they were not formally in the EQ program. The licensee stated in their condition report that, since no work was required under the design change package, the modification of existing procedures was overlooked. Review of existing procedures is a normal requirement for components modified by a design change.

As part of its review for the condition report, the licensee determined that valve silicon rubber seals (o-rings), used to maintain the EQ certification of valves FV6451 and FV6452, could be up to 18 years old. In previous maintenance activities on those valves the o-rings were inspected by maintenance personnel for their overall condition. There was no record found that the o-rings had been replaced. The EQ test report for the valves stated that the o-rings should be replaced at least every 10 years and recommended a 5 year replacement interval or whenever the components were disassembled. The licensee determined, after discussion with the valve manufacturer and after comparing EQ qualification test conditions with calculated room conditions after a HELB, that it was reasonable to presume that the existing valve conditions were sufficient to consider the valves functional for assumed mission times after a HELB.

As corrective action the licensee modified the relevant data bases and procedures to show that FV6451 and FV6452 were in the EQ program and to implement the requirements contained within the valves certification package. The licensee also initiated work orders to replace the valves o-rings at the next available opportunity.

The inspectors review of condition reports related to EQ, review of a licensee self assessment of the EQ program, and selected review of EQ packages did not identify any items of significance. As identified by the licensee, a backlog exists for EQ package change notices and those work activities were prioritized low in the overall engineering backlog reduction effort.

4OA3 Event Followup

.1 (Closed) LER 05000346/2005002-00, Inoperable Battery Due to Procedure Deficiency

and Inadequate Reviews On May 4, 2005, in response to NRC questions during the Safety System Design and Performance Capability (SSDPC) inspection, the licensee performed a review of past Station Battery quarterly surveillance test (DB-ME-03001), and found that the voltage reading for Station Battery 2N cell number 60 was recorded on December 2003 as 2.114 volts. The voltage value was below the 2.13 volts minimum TS limits. At that time, the licensee did not implement corrective actions to restore the cell voltage within 7 days as required by TS and the surveillance test procedure. The licensee entered this issue into the corrective action program (CR 05-02415) on May 4, 2005. This issue was documented as a Non-Cited Violation (NCV 05000346/2005004-02) in Inspection Report 05000346/2005004(DRS). The inspector reviewed the licensees corrective actions for CR 05-02415 and found them to be adequate. This LER is closed.

4OA5 Other Activities

.1 Review of Licensee Response to NRC Generic Letter 95-07

By letter dated November 29, 2004, the licensee corrected information relating to NRC Generic Letter 95-07, Pressure Locking and Thermal Binding of Safety-Related Power Operated Gate Valves, provided to the NRC by letter dated February 13, 1996. In the February 13, 1996, letter, the licensee stated that the pressurizer vent stop valve, RC 200, was routinely opened and closed during plant operation and had not become thermally bound. The corrected information stated that the valve is normally closed and is not required to be operated in modes 1, 2, or 3, and as a result would still not become thermally bound.

By letter dated August 9, 2005, the licensee provided additional information in response to NRC staff questions concerning the possibility of RC 200 becoming thermally bound if operated in response to a small-break loss-of-coolant accident. The licensee stated that valves identical to RC 200 had not experienced thermal binding; however, the licensee still committed to take action to ensure that thermal binding of RC 200 will not occur.

Specifically the licensee committed to modify two station procedures to require use of a regularly cycled valve, RC 239A, in lieu of RC 200 to initiate flow path isolation after initiation of flow and to inform operators of the procedure changes. The NRC staff reviewed the information provided and concluded that it was acceptable. Additionally, the inspectors determined that the procedures were modified and that the licensee took action to notify licensed operators.

In the NRCs safety evaluation of June 16, 1999, the NRC staff accepted valve RC 200 as not being subject to thermal binding. The information provided in the licensees letter of February 16, 1996, was material to the NRCs decision accepting the response to Generic Letter 95-07. The submittal of incomplete and inaccurate information is a licensee identified violation of 10 CFR 50.9(a). The enforcement aspects of this violation are discussed in Section 4OA7.

4OA5 Other Activities

The March 8, 2004, Confirmatory Order required, in part, that the licensee perform annual independent assessments, for a period of 5 years, in the areas of operations performance; organizational safety culture, including safety conscious work environment; corrective action program implementation; and engineering program effectiveness. This section of the report documents the special inspection activities associated with those assessments that were completed during this inspection period.

.1 Review of Engineering Program Effectiveness Independent Assessment Plan and

Implementation

a. Inspection Scope

The inspection activities were performed to verify the licensees compliance with the requirement for independent assessments, as described in the March 8, 2004, Confirmatory Order Modifying License No. NPF-3. This was the second of five required annual independent assessments of the engineering program. The inspectors verified that the licensee had submitted the required inspection plan 90 days prior to the performance of the assessment, evaluated the plan, and observed on-site implementation of the assessment to verify plan completion.

b. Observations and Findings

The licensee submitted its plan (start date of November 28, 2005) in a letter to the NRC dated August 29, 2005. The inspectors reviewed the licensees letter describing the assessment plans and evaluated the scope and depth of the plans, including the credentials, experience, objectivity, and independence of the designated assessors.

This review found the plan acceptable and was documented in NRC Inspection Report No. 05000346/2005008. Subsequent to this review, the licensee submitted Revision 1 of the plan on October 14, 2005. This revision was submitted to substitute one of the proposed team members. The inspectors verified that the individuals designated to perform the assessment were sufficiently independent from FENOC and that they brought the appropriate credentials and experience necessary to accomplish the assessment.

The plan included three team members on site for a period of 1 week and the other three team members on site for both weeks. The purpose of the plan was to provide an independent and comprehensive assessment of the Engineering Program effectiveness.

The plan included details to assess Engineering effectiveness in the following areas:

  • Plant Modification Process;
  • Calculation Process;
  • System Engineering;
  • Corrective Action Program;
  • Actions taken in response to Areas of Improvement identified during the 2004 Independent Assessment of Engineering;
  • Self assessment.

The scope and depth of the proposed plan appeared adequate to accomplish the objective of assessing Engineering Program effectiveness.

The NRC inspectors observed portions of the assessment activities during the second on site week including team interviews of plant staff. The interviews were found to be thorough and probing with very open communication between plant staff and the team.

The inspectors also met with the team members to discuss implementation of the approved assessment plan, and performed independent review of a sample of engineering products reviewed by the team. The team conducted a debrief at the end of on site activities and provided preliminary conclusions. The team identified good improvement in several areas since the 2004 assessment and did not identify any areas for improvement. The NRC inspectors found the implementation of the assessment plan to be acceptable and will review the final team report when it becomes available.

.2 Safety Culture/Safety Conscious Work Environment Independent Assessment

On December 14, 2005, Dr. Sonja Haber of Human Performance Analysis Corp.

presented to plant personnel the results of the independent assessment of Davis-Besse's Safety Culture and Safety Conscious Work Environment. She described the inspection procedure which included: functional analysis (document review), an organizational and safety culture survey, structured interviews, Behaviorally Anchored Rating Scales (BARS), and observations. They received 571 (71 percent) responses to the survey, conducted 97 interviews, 376 BARS representing 11 organizational behaviors, and conducted 70 observations of 20 different activities. The results were presented in accordance with the six characteristics of Safety Culture from model being used. She listed strengths, areas in need of attention, and areas for improvement (AFI),then rated each characteristic in regard to its effectiveness. Results were:

  • Safety is a clearly recognized value was rated as Effective. There were several strengths and areas in need of attention but no AFIs.
  • Accountability for safety is clear was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - A long-term strategy to sustain commitment to safety needs to be developed. Management actions were perceived to be top down and externally driven. Two departments were singled out as having a tendency to avoid responsibility (Operations and Security).
  • Safety is integrated into all activities was rated as Effective. There were several strengths and areas in need of attention but no AFIs.
  • A safety leadership process exists was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - Values and attitudes have improved since 2004, but only to 2003 levels. Leadership needed to demonstrate continued improvement and sustainability. It was also noted that some work groups (Operations, Security, maintenance, Chemistry, and Training)were not aligned on safety.
  • Safety culture is learning driven was rated as Marginally Effective. There were some strengths and areas in need of attention and one AFI - learning from experience needs to be internalized and recognized as important.
  • Safety Conscious Work Environment was rated as Effective. There were several areas in need of attention but no AFIs.

A written report with more detail is expected from Human Performance Analysis Corp. in mid-February 2006 and will be reviewed by the inspectors.

4OA6 Meetings

.1 Exit Meeting

The inspectors presented the inspection results to Mr. M. Bezilla, and other members of licensee management on January 6, 2006. The licensee acknowledged the findings presented. No proprietary information was identified.

.2 Interim Exit Meetings

Interim exits were conducted for:

  • Operator Requalification Program Examination Result Review with Mr. D. Lange on December 20, 2005.

4OA7 Licensee-Identified Violations

The following violations of very low safety significance (Green) were identified by the licensee and are violations of NRC requirements which meet the criteria of Section VI of the NRC Enforcement Policy, NUREG-1600, for being dispositions as NCVs.

  • Contrary to 10 CFR 50.9(a), the licensees letter of February 13, 1996, which submitted responses to NRC Generic Letter 95-07, Pressure Locking and Thermal Binding of Safety-Related Power Operated Gate Valve, contained incomplete or inaccurate information on the operation of pressurizer vent stop valve, RC200. The information provided was material to the NRCs decision accepting the response to Generic Letter 95-07. Revised information was provided to the NRC by the licensees letter of August 5, 2005. The issue of incorrect or inaccurate information was identified in the licensee's corrective action program as CR 04-00759 and CR 04-05581. This finding was processed using the traditional enforcement process and was classified as a Severity Level IV violation. This finding is of very low safety significance because there is no confirmation that the valve RC200 would not have functioned when needed.

Additionally, the licensee has developed procedural steps to further ensure that the valve would not become thermally bound in an undesired position.

  • Contrary to 10 CFR 50.65(a)(4), licensee personnel performed scheduled activities in a sequence that was not assessed for risk resulting in an inadvertent entry to licensee risk category of orange. On October 3, 2005, for approximately 43 minutes, licensee personnel concurrently performed scheduled activities on decay heat pump 1 and the emergency instrument air compressor. This placed the plant in an unreviewed orange risk category. This event is documented in CR 05-05334. This finding is of very low safety significance because the concurrent work activities did not represent a loss of safety function or loss of a safety train for greater than limits in TSs.
  • Contrary to TS 6.8.1 and Regulatory Guide 1.33, licensee personnel positioned a valve in violation of DB-OP-01002 by not performing the required independent verification. On November 15, 2005, CCW train 2 was inoperable and it would not have been able to fulfill its safety function. This condition existed for 14.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> prior to discovery. This placed the plant in TS action statements and an unreviewed orange risk category. This event is documented in CR 05-05650 and CR 05-05666. This finding is of very low safety significance because the mispositioned valve event did not represent a loss of safety function or loss of a safety train for greater than limits in TSs.

ATTACHMENT:

SUPPLEMENTAL INFORMATION

KEY POINTS OF CONTACT

Licensee Personnel

B. Allen, Director, Plant Operation
M. Bezilla, Site Vice President
B. Boles, Manager, Plant Engineering
R. Farrell, Director, Site Maintenance
J. Grabnar, Manager, Design Engineering
L. Harder, Manager, Radiation Protection
R. Hovland, Manger, Technical Services
R. Hruby, Manager, Nuclear Oversight
D. Kline, Manager, Security
D. Lange, License Operator Requalification Training Lead
S. Loehlein, Director, Station Engineering
K. Ostrowski, Manager, Plant Operations
C. Price, Manager, Regulatory Compliance
R. Schrauder, Director, Performance Improvement
M. Trump, Manager, Training
J. Vetter, Emergency Preparedness Manager

LIST OF ITEMS OPENED, CLOSED, AND DISCUSSED

Opened and Closed

05000346/2005009-01 FIN Failure to Control Loose Material Adjacent to the Switchyard
05000346/2005009-02 NCV Inadequate Design Control During Modification of the Containment Hydrogen Analyzer Moisture Trap Drainage System

Closed

05000346/2005002-00 LER Inoperable Battery Due to Procedure Deficiency and Inadequate Reviews Attachment

LIST OF DOCUMENTS REVIEWED