IR 05000277/2009003
Download: ML092220599
Text
August 10, 2009
Mr. Charles Senior Vice President, Exelon Generation Company, LLC President and Chief Nuclear Officer, Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT: PEACH BOTTOM ATOMIC POWER STATION - NRC INTEGRATED INSPECTION REPORT 05000277/2009003 AND 05000278/2009003
Dear Mr. Pardee:
On June 30, 2009, the U. S. Nuclear Regulatory Commission (NRC) completed an inspection at your Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3. The enclosed integrated inspection report documents the inspection results, which were discussed on July 17, 2009, with Mr. William Maguire and other members of your staff.
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. Based on the results of this inspection, two self-revealing findings of very low safety significance (Green) were identified. One of these findings was determined to involve a violation of NRC requirements. Additionally, a licensee-identified violation which was determined to be of very low safety significance is listed in this report. However, because of the very low safety significance and because the finding has been entered into your corrective action program (CAP), the NRC is treating the finding as a non-cited violation (NCV), consistent with Section VI.A.1 of the NRC Enforcement Policy. If you contest the 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 Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555-0001; with copies to the Regional Administrator, Region I; the Director, Office of Enforcement, U. S. NRC, Washington, DC 20555-0001; and the NRC Resident Inspector at the PBAPS. In addition, if you disagree with the characterization of the cross-cutting aspect of any finding in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, to the Regional Administrator, Region 1 and the NRC Senior Resident Inspector at PBAPS. The information you provide will be considered in accordance with Inspection Manual Chapter (IMC) 0305.
In accordance with Title 10 of the Code of Federal Regulations (CFR) 2.390 of the NRC's "Rules of Practice," a copy of this letter, its enclosure, and your response (if any) will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of the NRC's document system (ADAMS). ADAMS is accessible from the NRC Website at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,/RA/ Paul G. Krohn, Chief Reactor Projects Branch 4 Division of Reactor Projects Docket Nos.: 50-277, 50-278 License Nos.: DPR-44, DPR-56
Enclosures:
Inspection Report 05000277/2009003 and 05000278/2009003
w/Attachment:
Supplemental Information cc w/encl:
C. Crane, President and Chief Operating Officer, Exelon Corporation M. Pacilio, Chief Operating Officer, Exelon Nuclear W. Maguire, Site Vice President, Peach Bottom J. Grimes, Acting Senior Vice President, Mid-Atlantic R. Hovey, Senior Vice President, Nuclear Oversight G. Stathes, Plant Manager, Peach Bottom J. Armstrong, Regulatory Assurance Manager, Peach Bottom J. Bardurski, Manager, Financial Control & Co-Owner Affairs R. Franssen, Director, Operations P. Cowan, Director, Licensing D. Helker, Licensing K. Jury, Vice President, Licensing and Regulatory Affairs J. Bradley Fewell, Associate General Counsel, Exelon T. Wasong, Director, Training Correspondence Control Desk D. Allard, Director, Bureau of Radiation Protection, PA Department of Environmental Protection S. Gray, Administrator, Maryland Power Plant Research Program S. Pattison, Secretary, SLO, Maryland Department of the Environment M. Griffen, Maryland Department of Environment Public Service Commission of Maryland, Engineering Division Board of Supervisors, Peach Bottom Township B. O'Connor, Council Administrator of Harford County Council Mr. & Mrs. Dennis Hiebert, Peach Bottom Alliance E. Epstein, TMI - Alert J. Johnsrud, National Energy Committee, Sierra Club Mr. & Mrs. Kip Adams R. Fletcher, Dir, MD Environmental Program Manager, Radiological Health Program Director, Nuclear Safety Project, Union of Concerned Scientists R. Ayers, Deputy Mgr, Harford County Div of Emergency Operations E. Crist, Harford County Div of Emergency Operations S. Ayers, Emergency Planner, Harford County Div of Emergency Operations R. Brooks, Cecil County Dept of Emergency Services Publicly Available Records (PARS) component of the NRC's document system (ADAMS). ADAMS is accessible from the NRC Website at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,/RA/ Paul G. Krohn, Chief Reactor Projects Branch 4 Division of Reactor Projects Distribution w/encl: (via E-mail) S. Collins, RA M. Dapas, DRA D. Lew, DRP J. Clifford, DRP P. Krohn, DRP R. Fuhrmeister, DRP A. Rosebrook, DRP E. Torres, DRP J. Bream, DRP F. Bower, DRP, SRI M. Brown, DRP, RI S. Schmitt, DRP, OA L. Trocine, RI OEDO H. Chernoff, NRR R. Nelson, NRR J. Hughey, PM NRR P. Bamford, Backup NRR ROPreports@nrc.gov Region I Docket Room (with concurrences) SUNSI Review Complete: ___PGK___ (Reviewer's Initials) ML092220599 DOCUMENT NAME: G:\DRP\BRANCH4\INSPECTION REPORTS\PEACH BOTTOM\PBIR2009-003 REV 4.DOC After declaring this document "An Official Agency Record" it will be released to the Public. To receive a copy of this document, indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy OFFICE RI/DRP RI/DRP RI/DRP NAME FBower/ PGK for JBream/ * PKrohn/ PGK DATE 08/10 /09 07/ 24 /09 08/10 /09 OFFICIAL RECORD COPY * Concurred on 7/24/09, JRB 1 Enclosure U.S. NUCLEAR REGULATORY COMMISSION REGION I Docket Nos.: 50-277, 50-278 License Nos.: DPR-44, DPR-56 Report No.: 05000277/2009003 and 05000278/2009003 Licensee: Exelon Generation Company, LLC Facility: Peach Bottom Atomic Power Station, Units 2 and 3 Location: Delta, Pennsylvania Dates: April 1, 2009 through June 30, 2009 Inspectors: F. Bower, Senior Resident Inspector M. Brown, Resident Inspector E. Torres, Project Engineer A. Ziedonis, Reactor Inspector Approved by: Paul G. Krohn, Chief Reactor Projects Branch 4 Division of Reactor Projects
Enclosure 2
SUMMARY OF FINDINGS
......................................................................................................... 3
REPORT DETAILS
REACTOR SAFETY
.............................................................................................................. 5 1R01 Adverse Weather Protection ............................................................................................ 5 1R04 Equipment Alignment ....................................................................................................... 6 1R05 Fire Protection ................................................................................................................. 7 1R11 Licensed Operator Requalification Program .................................................................... 8 1R12 Maintenance Effectiveness ............................................................................................. 9 1R13 Maintenance Risk Assessments and Emergent Work Control ......................................... 9 1R15 Operability Evaluations .................................................................................................. 10 1R18 Plant Modifications ........................................................................................................ 10 1R19 Post-Maintenance Testing ............................................................................................. 11 1R22 Surveillance Testing ...................................................................................................... 11 1EP6 EP Drill Evaluation
OTHER ACTIVITIES
....... 13
4OA1 Performance Indicator Verification
................................................................................ 12
4OA2 Identification and Resolution of Problems (PI&R)
......................................................... 13
4OA3 Follow-up of Events and Notices of Enforcement Discretion
......................................... 18
4OA5 Other Activities .............................................................................................................. 21 4OA6
Meetings, Including Exit ................................................................................................. 22
4OA7 Licensee-Identified Violations ........................................................................................ 22
ATTACHMENT:
SUPPLEMENTAL INFORMATION
KEY POINTS OF CONTACT
.................................................................................................. A-1
LIST OF ITEMS OPENED, CLOSED, AND DISCUSSED
....................................................... A-1
LIST OF DOCUMENTS REVIEWED
...................................................................................... A-2
LIST OF ACRONYMS
- ...... ...................................................................................................... A-9
- OF [[]]
- FINDIN [[]]
GS IR 05000277/2009003, 05000278/2009003; 04/01/2009 - 06/30/2009; Peach Bottom Atomic
Power Station, Units 2 and 3; Identification and Resolution of Problems; Follow-up of Events and Notices of Enforcement Discretion.
The report covered a three-month period of inspection by resident inspectors and an announced inspection by a regional reactor inspector. Two self-revealing findings were identified. The significance of most findings is indicated by their color (Green, White, Yellow, or Red) using
- NRC 's program for overseeing the safe operation of commercial nuclear power reactors is described in
- NUR [[]]
EG-1649, "Reactor
Oversight Process," Revision 4, dated December 2006. Cornerstone: Initiating Events * Green. A self-revealing finding was identified when
- PBAPS personnel incorrectly performed a maintenance procedure for tuning the reactor recirculation pump (
RRP) motor generator (MG) set voltage regulator. Specifically, maintenance personnel
adjusted a potentiometer in the wrong direction, which resulted in a trip of the RRP and an unplanned plant transient. This finding is more than minor because the finding is associated with the human performance attribute of the Initiating Events Cornerstone, and adversely affected the
cornerstone objective of limiting the likelihood of those events that upset plant stability and challenge critical safety functions. Specifically, this error resulted in an unplanned plant transient that reduced reactor power from 75 percent to 33 percent. In accordance with IMC 0609, Attachment 4, the inspectors determined this finding to be of very low safety significance (Green) since 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. This finding has a cross-cutting aspect in the area of human performance, Work Practices, because
- PBAPS did not define and effectively communicate expectations regarding procedural compliance and personnel did not follow procedures H.4(b). Specifically,
PBAPS personnel did not follow procedure IC-11-02011
instructions for tuning the 3 'A'
- RRP [[]]
- 10 CFR 50, Appendix B, Criterion V, "Instructions, Procedures, and Drawings," was identified. Specifically, Exelon's Motor Operated Valve (
- MOV ) Program procedures lacked specific instructions to prescribe an acceptable frequency for performing valve stem lubrication, which resulted in test failures of safety-related
MOVs' safety functions.
On Unit 2, the inspectors determined that the finding was more than minor because it was associated with the equipment performance attribute of the Mitigating Systems Cornerstone and affected the cornerstone objective of ensuring the availability, reliability,
and capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). In accordance with IMC 0609, Attachment 4, the inspectors determined that the finding was of very low safety significance (Green)
because it was not a design or qualification deficiency, did not represent a loss of system safety function, and was not associated with any external events. On Unit 3, the inspectors determined that the finding was more than minor because it was associated with the configuration control attribute of the Barrier Integrity Cornerstone and affected the cornerstone objective of providing reasonable assurance that physical design
barriers (e.g., containment) protect the public from radionuclide releases caused by accidents or events. In accordance with
- IMC [[0609, Attachment 4, the inspectors determined that the finding was of very low safety significance (Green) because it did not represent an actual open pathway in the physical integrity of reactor containment. For both units, this finding has a cross-cutting aspect in the area of Problem Identification and Resolution (]]
- PBA [[]]
PS did not thoroughly evaluate problems such that the resolutions addressed the causes and extent of
condition P.1(c). Specifically,
- PBAPS failed to thoroughly evaluate previous conditions of degraded and hardened grease on safety-related valves, such that the extent of the condition was considered and the cause was resolved. (Section 4
- OA 2) Other Findings A violation of very low safety significance, which was identified by the licensee, has been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensee's
- REPORT [[]]
- DETAIL S Summary of Plant Status Unit 2 began the inspection period at 100 percent rated thermal power (RTP). On April 24, a power reduction to 23 percent
- RTP was conducted in response to continued degradation and heating of electrical components in the electro-hydraulic control (
EHC) system. On April 26, the unit was returned to full power. Unit 2 remained at or near full power for the remainder of the
inspection period. Unit 3 began the inspection period at 100 percent
- RRP [[]]
- MG set voltage regulator. An unplanned power reduction from 75 percent to 32 percent occurred when the 3 'A'
MG set voltage regulator. On May 25, the unit was returned to full power. On June 13, 2009, the unit was reduced to 62 percent for
emergent maintenance to repair degrading condenser in-leakage on the 3 'B' main feed pump turbine exhaust expansion joint. On June 14, 2009, the unit was returned to full power. Unit 3 remained at or near full power for the remainder of the inspection period.
1.
SAFETY
Cornerstones: Initiating Events, Mitigating Systems, and Barrier Integrity
1R01 Adverse Weather Protection (71111.01 - 2 Samples)
.1 Grid Reliability a. Inspection Scope The inspectors reviewed plant features and procedures for operation and continued
availability of offsite and backup power systems during adverse weather (summer conditions). The inspectors reviewed communication protocols between the control room personnel and electrical system operations, as well as measures prescribed and taken to maintain the availability and reliability of these alternating current (AC) systems. Documents reviewed during this inspection are listed in the Attachment. b. Findings No findings of significance were identified. .2 Summer Seasonal Readiness Preparations
a. Inspection Scope The inspectors conducted a review of
- PBA [[]]
- PS 's preparations for the 2009 summer conditions to verify selected features of the plant's design were sufficient to protect mitigating systems from the effects of adverse weather. The inspectors reviewed
WC-AA-107, "Seasonal Readiness," in preparation for summer season readiness. Documentation for selected risk-significant systems was reviewed to ensure that these systems would remain functional when
challenged by inclement weather. During the inspection, the inspectors focused on plant specific design features and the licensee's procedures used to mitigate or respond to adverse weather conditions. The inspectors reviewed the Updated Final Safety Analysis
Report (UFSAR) and performance requirements for systems selected for inspection. The inspectors reviewed
- CAP records to verify that the licensee was identifying adverse weather issues at an appropriate threshold and entering them into their
CAP. In addition, the inspectors reviewed the "Certification of 2009 Summer Readiness" memorandum dated May 15, 2009. Documents reviewed during this inspection are
listed in the Attachment. The inspectors walked down the following systems and equipment: * Intake Structure Ventilation System; * Emergency Diesel Generator (EDG) Building Ventilation System; and * 'A' Supplemental Cooling Tower. b. Findings No findings of significance were identified. 1R04 Equipment Alignment
.1 Partial Walkdown (71111.04Q - 3 Samples) a. Inspection Scope The inspectors performed a partial walkdown of three systems to verify the operability of
redundant or diverse trains and components when safety-related equipment was inoperable. The inspectors reviewed selected applicable operating procedures, walked down system components, and verified that selected breakers, valves, and support equipment were in the correct position to support system operation. Documents reviewed during this inspection are listed in the Attachment. The inspectors walked
down the systems below: * E-1
OOS; and * 'A' Control Room Chilled Water System with 'B' Control Room Chilled Water System OOS. b. Findings No findings of significance were identified.
.2 Complete Walkdown (71111.04S - 1 Sample) a. Inspection Scope The inspectors performed a complete system walkdown of the accessible portions of the
Unit 2 reactor core isolation cooling system (RCIC), verifying that accessible breakers, valves and support equipment were properly aligned to support system operation. The inspectors reviewed system operating procedures and piping and instrumentation drawings; walked down control system components; and verified that circuit breakers
and valves were in the appropriate positions. Documents reviewed during this inspection are listed in the Attachment.
b. Findings No findings of significance were identified 1R05 Fire Protection .1 Fire Protection - Tours (71111.05Q - 5 Samples) a. Inspection Scope The inspectors conducted fire protection walkdowns which were focused on availability, accessibility, and the condition of firefighting equipment. The inspectors reviewed areas
to assess if
- FPP [[) and adequately: controlled combustibles and ignition sources within the plant; maintained fire detection and suppression capability; and maintained the material condition of passive fire protection features. For the areas inspected, the inspectors also verified that]]
compensatory measures were implemented for OOS, degraded, or inoperable fire protection equipment, systems, or features. The inspectors verified: that fire hoses and extinguishers were in their designated locations and available for immediate use; that fire detectors and sprinklers were unobstructed; that transient combustible materials were managed in accordance with plant procedures; and fire doors, dampers, and
penetration seals appeared to be in satisfactory condition. Documents reviewed during this inspection are listed in the Attachment. The inspectors toured the following areas: * Unit 3 Reactor Building Closed-Cooling Water (RBCCW) Room, Unit 3 Radwaste Building, 116' Elevation (Fire Zone 12B); * Unit 3 High-Pressure Coolant Injection (HPCI) Room, Unit 3 Reactor Building, 88' Elevation (Fire Zone 62); * Unit
- 2 RRP [[]]
MG Set Room, Radwaste Building, 135' Elevation (Fire Zone 4C); * Main Control Room, Turbine Building, 165' Elevation (Fire Zone 108); and * Unit 3 Lube Oil Tank Room, Turbine Building, 116' Elevation (Fire Zone 89). b. Findings
No findings of significance were identified. .2 Annual Fire Protection Drill Observation (71111.05A - 1 Sample) a. Inspection Scope On April 16, 2009, the inspectors observed fire brigade classroom training and live-fire drills at the
- PE [[]]
CO Energy Fire Academy in West Conshohocken, Pennsylvania. The inspectors noted that the classroom training provided a refresher on the Incident Management System and its techniques, methods, and terminology that are used to manage fire fighting or hazardous material events.
The inspectors noted that the live-fire fighting was done in burn facilities that simulated a transformer oil fire and fire involving plant cabling and equipment. The observation was used to determine whether appropriate learning opportunities were provided and to
determine the readiness of the plant fire brigade to fight fires. The inspectors verified that the
- PBA [[]]
PS fire brigade participants and the training instructors identified deficiencies; openly discussed them in a self-critical manner at the drill debrief, and appropriately documented the identified issues to develop corrective actions for future training. Specific attributes evaluated were:
- Proper Wearing of Turnout Gear and Self-contained Breathing Apparatus; * Proper Use and Layout of Fire Hoses; * Employment of Appropriate Fire Fighting Techniques; * Sufficient Fire Fighting Equipment Brought to the Scene; * Effectiveness of Fire Brigade Leader Communications, Command, and Control; * Search for Victims and Propagation of the Fire Into Other Plant Areas; * Smoke Removal Operations; * Use of Pre-planned Strategies; * Adherence to the Pre-planned Drill Scenario; and * Drill Objectives. The inspectors verified that procedure RT-F-101-922-2, "Fire Drill," was completed to record the fire drill scenario used, document that the drill objectives were met, and capture the critique results. b. Findings No findings of significance were identified.
1R11 Licensed Operator Requalification Program (71111.11Q - 1 Sample) .1 Resident Inspector Quarterly Review a. Inspection Scope On June 23, 2009, the inspectors observed two crews of licensed operators in the plant's simulator during licensed operator requalification examinations to verify that operator performance was adequate, evaluators were identifying and documenting crew performance deficiencies, and training was being conducted in accordance with licensee
procedures. The crew's performance was compared to pre-established operator action expectations and successful critical task completion requirements. Documents reviewed during this inspection are listed in the Attachment. The inspectors evaluated the following areas: * Licensed Operator Performance; * Crew's Clarity and Formality of Communications; * Ability to Take Timely Actions in the Conservative Direction; * Prioritization, Interpretation, and Verification of Annunciator Alarms; * Correct Use and Implementation of Abnormal and Emergency Procedures; * Control Board Manipulations; * Oversight and Direction from Supervisors; and
- Ability to Identify and Implement Appropriate Technical Specification (TS) Actions and Emergency Plan Actions and Notifications. b. Findings No findings of significance were identified. 1R12 Maintenance Effectiveness (71111.12Q - 2 Samples) a. Inspection Scope The inspectors evaluated
- PBAPS 's work practices and follow-up corrective actions for safety-related structures, systems, and components (
- SSC s and assessed Exelon's extent-of-condition (EOC) determinations for those issues with potential common cause or generic implications to evaluate the adequacy of the
- PBA [[]]
- PBAPS had appropriately monitored, evaluated, and dispositioned the issues in accordance with Exelon procedures and the requirements of 10
CFR 50.65, "Requirements for Monitoring the Effectiveness of Maintenance." In addition, the inspectors reviewed selected SSC classifications, performance criteria and goals, and Exelon's corrective actions that were
taken or planned, to evaluate whether the actions were reasonable and appropriate. Documents reviewed during this inspection are listed in the Attachment. The inspectors reviewed the following two samples: * Repeat Master Trip Solenoid Valve (MTSV) Issues (IR 918352); and * Apparent Cause Evaluation for Tritium Increase in Groundwater Monitoring Well #4 (IR 808183). b. Findings No findings of significance were identified. 1R13 Maintenance Risk Assessments and Emergent Work Control (71111.13 - 4 Samples)
a. Inspection Scope The inspectors evaluated
- PBAPS =s implementation of their Maintenance Risk Program with respect to the effectiveness of risk assessments performed for maintenance activities that were conducted on
- PBAPS had taken the necessary steps to plan and control emergent work activities and to manage overall plant risk. The inspectors selectively reviewed
- PBA [[]]
PS's use of the online risk monitoring software, and daily work schedules. The activities selected were based on plant maintenance schedules and systems that contributed to risk. Documents reviewed during this inspection are listed in the Attachment. The inspectors reviewed the following samples:
10 * Emergent Power Reduction for Work to Correct Heating of Two Relays in the Unit
WO C0228763); and * Exceeded Adverse Condition Monitoring Plan (ACMP) Action Level for Unit 3 Main Condenser (WO A1714585). b. Findings No findings of significance were identified. 1R15 Operability Evaluations (71111.15 - 4 Samples)
a. Inspection Scope The inspectors assessed the technical adequacy of the operability evaluations, the use and control of compensatory measures, and compliance with the licensing and design bases. Associated
- AC [[]]
MPs, engineering technical evaluations, and operational and technical decision making documents were also reviewed. The inspectors verified these processes were performed in accordance with the applicable administrative procedures
and were consistent with
- NRC [[]]
- IMC Part 9900, "Operability Determinations & Functionality Assessments for Resolutions of Degraded or Nonconforming Conditions Adverse to Quality or Safety." The inspectors also used Technical Specifications (TSs),
UFSAR, and associated Design Basis Documents
as references during these reviews. Documents reviewed during this inspection are listed in the Attachment. The inspectors reviewed the following samples: * Determine the Scope of Torus Material and Method (Wet\Dry) that Requires Recoat in Unit 2 [P2R19] and Unit 3 [P3R18] Refueling Outages (IR 873016-03); * Electrical Distribution Bases (3.8.7) Potential Needs Upgraded (IR 894904); * Exceeded
YELLOW (IR 881184). b. Findings
No findings of significance were identified. 1R18 Plant Modifications (71111.18 - 1 Sample) .1 Temporary Modifications a. Inspection Scope
11 The inspectors reviewed one temporary modification to verify that implementation of the modification did not place the plant in an unsafe condition. The review was also conducted to verify that the design bases, licensing bases, and performance capability of risk significant
- SSC s had not been degraded as a result of these modifications. The inspectors verified the modified equipment alignment through control room instrumentation observations;
- WO reviews; and plant walkdowns of accessible equipment. Documents reviewed during this inspection are listed in the Attachment. The inspectors reviewed the following sample: *
ECR 09-00078 000, Re-Route Cables from Damaged Duct Bank To Support Duct Bank Repair. b. Findings No findings of significance were identified. 1R19 Post-Maintenance Testing (71111.19 - 7 Samples) a. Inspection Scope The inspectors observed selected portions of post-maintenance testing (PMT) activities and reviewed completed test records. The inspectors observed whether the tests were
performed in accordance with the approved procedures and assessed the adequacy of the test methodology based on the scope of maintenance work performed. In addition, the inspectors assessed the test acceptance criteria to evaluate whether the test demonstrated that the tested components satisfied the applicable design and licensing bases and the TS requirements. The inspectors reviewed the recorded test data to
verify that the acceptance criteria were satisfied. Documents reviewed during this inspection are listed in the Attachment. The inspectors reviewed the following samples: * Perform Leak Sealant Injection on Regenerative Heat Exchanger Tube Side Outer Vent Valve (WO C0228895); * 2 'A' Drywell Chiller, Rebuild and Eddy Current Test (WO C0220912); * 2 'A'
WO M1716915). b. Findings
No findings of significance were identified. 1R22 Surveillance Testing (71111.22 - 5 Samples) a. Inspection Scope The inspectors compared test data with established acceptance criteria to verify the systems demonstrated the capability of performing the intended safety functions. The inspectors also verified that the systems and components maintained operational
2 readiness, met applicable TS requirements, and were capable of performing design basis functions. Documents reviewed during this inspection are listed in the Attachment. The inspectors reviewed the following samples:
- SI 3P-5-12-C1C2, Calibration Check of reactor protection system (RPS) Drywell Pressure Loop Instruments
- RHR [[Loop Pump, Valve, Flow, and Unit Cooler Functional and Inservice Test [Inservice Test Sample]; and *]]
- ST [[-O-020-560-2, Reactor Coolant Leakage Test [RCS Leakage Sample]. b. Findings No findings of significance were identified. Cornerstone: Emergency Preparedness (EP)]]
- EP Drill Evaluation (71114.06 - 1 Drill Sample) a. Inspection Scope The inspectors evaluated the conduct of a
- PBA [[]]
PS emergency drill on June 1, 2009, to
identify any weaknesses and deficiencies in classification and notification activities. The drill was conducted to provide drill and exercise performance (DEP) opportunities for the
PI). The inspectors observed operators respond to events in the simulator control room through the declaration and notification of an alert. The inspectors observed the operations shift manager transition emergency response command and control responsibilities to the site emergency director in the technical support center (TSC). The inspectors relocated to the TSC to observe command and
control of the emergency response organization and dose assessment as the event escalated to the declaration and notification of a site area emergency. The inspectors verified that the event classification and notifications were done in accordance with
- PBA [[]]
PS." The inspectors verified that the drill evaluators correctly counted the drill's contribution in the
calculation of the
- DEP [[]]
- PI. The inspectors also verified that operations personnel in the simulator control room identified weaknesses or deficiencies during the critique of the drill. The following simulated events were classified during this training exercise: *
HA5 - Alert, Natural and Destructive Phenomena. b. Findings
No findings of significance were identified.
4.
- OTHER [[]]
ACTIVITIES 4OA1 Performance Indicator Verification (71151 - 10 Samples)
13 Cornerstone: Initiating Events and Barrier Integrity .1 Initiating Events
PI definitions and guidance
contained in Nuclear Energy Institute (NEI) 99-02, "Regulatory Assessment Performance Indicator Guideline," Revision 5, were used to verify the accuracy of the
NEI guideline to verify that the data were correctly reflected in the report. Documents
reviewed during this inspection are listed in the Attachment. The following six
- PI samples were reviewed: Units 2 and 3 * Unplanned Scrams; * Unplanned Scrams with Complications; and * Unplanned Power Changes. b. Findings No findings of significance were identified. .2 Barrier Integrity
- NEI 99-02, "Regulatory Assessment Performance Indicator Guideline," Revision 5, and Exelon procedure
- NRC Performance Indicator Data," were used to verify that the reporting requirements were met. The inspectors reviewed raw
- PI data collected since January 2008 to April 2009 and compared graphical representations from the most recent
- PI report to the raw data to verify the data was included in the report. Documents reviewed during this inspection are listed in the Attachment. The following four
OA2 Identification and Resolution of Problems (PI&R) (71152 - 2 Samples) 1. Annual Sample: MOV Hardened Grease Challenges (1 In-depth Review Sample)
14 a. Inspection Scope This inspection focused on Exelon's identification, evaluation, and resolution of
challenges associated with hardened grease on safety-related
- HPCI valves failed to stroke to the full open position during surveillance testing on March 12 and March 21, 2009.
- MOV disassembly and inspection identified hardened grease on the stem and inside the stem nut of both valves. Initial extent-of-condition evaluations revealed that two
- RHR valves developed less-than-required closing thrust for successful diagnostic test acceptance. Hardened grease was also identified on the stem and inside the stem nut of both
MOVs required additional evaluation appropriate to the circumstances, such as visual inspection, grease evaluation, diagnostic testing, and/or corrective maintenance. The inspectors reviewed Exelon's associated root cause evaluation, operability
evaluations, corrective action reports, and a sample of diagnostic and stroke time test data, and interviewed plant personnel to evaluate the adequacy of Exelon's performance in the areas of problem identification, evaluation, extent-of-condition scoping, and corrective actions. Additionally, the inspectors observed the integrity of damaged, worn, and newly machined stem nuts to evaluate the effect of plant conditions on stem nut
integrity. Finally, the inspectors reviewed
- PBAPS. Documents reviewed are listed in the Attachment. b. Findings and Observations Introduction: A Green, self-revealing
- 10 CFR 50, Appendix B, Criterion V, "Instructions, Procedures, and Drawings," was identified. Specifically, Exelon's
- MOV Program procedures lacked specific instructions to prescribe an acceptable frequency for performing valve stem lubrication, which resulted in test failures of safety-related
- MOV s' safety functions. Description: During quarterly surveillance testing performed by Exelon on March 12, 2009, the Unit
MOV (MO-2-23-058) failed to stroke full open during its quarterly surveillance test and was subsequently declared inoperable. Investigation by Exelon identified dried and hardened grease on the valve stem and stem nut, and a root cause investigation was assigned to Exelon engineering staff.
Extent-of-condition inspections were performed by Exelon on select
- HPCI [[]]
- MO -3-23-057), but the condition was determined not to impact valve operability. Exelon rescheduled the periodic stem lubrication interval on the Unit
- 3 HPCI [[]]
MOV from ten years to six years, and assigned this PM to the next Unit 3 refueling
outage (fall of 2009). Subsequently, on March 21, 2009, the Unit
MOV failed to stroke full open during quarterly surveillance testing and was declared inoperable. Investigation by Exelon identified hardened grease on the stem and inside the stem nut, as well as stem nut wear. As a result of the failure, Exelon expanded the extent-of-condition scope to include diagnostic testing of MOVs on both
units within the affected
MOVs), as well as eleven other safety-related MOVs based on diagnostic test data margins, as well as similar stem characteristics.
15 During the diagnostic testing of the Unit
MOV (MO-3-10-13D) on March 26, 2009, Exelon identified less-than-required thrust at the torque switch trip, and the valve was subsequently declared inoperable. Investigation
by Exelon revealed that the stem grease was degraded and several stem nut threads were damaged. As a result of this test failure, the extent-of-condition scope was again expanded. Exelon concluded that 45 safety-related
- MOV s required additional evaluation, such as visual inspection, grease evaluation, diagnostic testing, and/or corrective maintenance. This review identified one additional
MOV under-thrust
condition on the Unit
- NRC inspectors reviewed the final extent-of-condition scoping, and found that it was appropriate to the circumstances. Exelon performed immediate corrective actions after each of the
MOV failures, which
included cleaning and removing the old grease from the stem and stem nut area, applying new grease, and performing diagnostic testing to ensure successful valve performance. Exelon performed operability evaluations for each of the four
MOVs would have been capable of performing their intended safety function for all design basis events. The operability evaluation for
the Unit
MOV concluded that the valve would not have been able to perform its safety function of containment isolation for all design basis events. Operability evaluations for the other three MOVs determined that the valves would have
been capable of performing their safety functions for all design basis events. The Unit
MOV is normally open in a standby mode for low pressure coolant injection, and was evaluated for its design function to close during suppression pool cooling and containment spray modes of the RHR system. Exelon concluded that the valve motor torque capability would have provided enough inertia to hard seat the
valve from the as-found torque switch trip condition in the extent-of-condition diagnostic test. The operability evaluations for the Unit 2 and Unit
MOVs stated that the torque switch trip protection, which stopped the valve from completely opening through the degraded grease conditions during the surveillance tests, is bypassed during safety actuation signals to open. Exelon determined that the valve motor torque capability, absent torque switch trip protection, was sufficient to open the valve during all design basis events despite the degraded grease conditions. The
inspectors reviewed the operability evaluations and agreed that Exelon's conclusions regarding past operability were reasonable. However, the capability of the MOVs to perform their mitigating safety functions was challenged, thereby impacting their reliability.
A root cause evaluation was performed by Exelon in response to the four
- MOV [[]]
PM activities as necessary to assure that safety-
related
- MOV s can perform their functions as required. The root cause evaluation stated that Exelon had the longest allowable
- MOV [[]]
- PM lubrication intervals in the entire nuclear fleet (up to 10 years). Previous industry guidance and vendor information had described Exxon Nebula Extreme Pressure (
PBAPS, as being
16 susceptible to degradation and hardening phenomena. The Exelon root cause identified that Exxon cancelled production of Nebula
EOC inspections performed by Exelon identified mixtures of
Nebula
- PBAPS [[]]
- MOV lubricant, N5000 NeverSeez, on several valve stems and stem nuts. Industry guidance has noted that NeverSeez is incompatible with Nebula
MOV PM lubrication frequencies and actions, including:
- October 2006:
- MO -3-10-026B failed to successfully stroke. Internal inspection identified severely degraded grease, and the stem nut was replaced. * October 2007:
- NRC [[]]
- MO -3-10-026B failure to stroke noted that although Exelon identified a hardened grease condition, this was not determined to be the most probable cause of the failure, and no
- EOC evaluation was performed. Subsequent walkdowns by the inspector identified degraded lubricating grease on
- MOV ) stroked slowly and failed to close. Degraded lubricating grease and stem nut wear were identified, and the stem nut was replaced. * January 2009:
- MO -3-01A-077 failed to go full open. The valve stem was cleaned and re-lubricated and the stroke time decreased. Analysis: The inspectors determined that Exelon's failure to properly implement
MOV preventive maintenance activities, specifically with respect to stem lubrication necessary to assure that MOVs will function when required, constituted a performance deficiency. Specifically, degraded stem lubrication was identified as a common factor in four safety-
related
- MOV test failures between March 12, 2009 and April 2, 2009. Unit 2: The finding for Unit 2 was more than minor because it was associated with the equipment performance attribute of the Mitigating Systems (
MS) Cornerstone and affected the cornerstone objective of ensuring the availability, reliability, and capability of
systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). Specifically, the
MOV experienced test failures, were declared inoperable, and required detailed operability evaluations as described above, thereby challenging their reliability and capability to perform their safety function. Using the Phase 1 worksheet in
of Manual Chapter 0609, "Significance Determination Process," the finding affected the
- MS [[Cornerstone and was of very low safety significance (Green) because it was not a design or qualification deficiency, did not represent a loss of system safety function, and was not associated with any external events. Unit 3: The finding for Unit 3 was more than minor because it was associated with the configuration control attribute of the Barrier Integrity (]]
- BI ) Cornerstone and affected the cornerstone objective of providing reasonable assurance that physical design barriers (e.g., containment) protect the public from radionuclide releases caused by accidents or events. Specifically,
MOV was determined by Exelon to not be capable of isolating for all design basis events. Using the Phase 1 worksheet in Attachment 4 of Manual Chapter 0609, "Significance Determination Process," the finding
affected the BI cornerstone and was of very low safety significance (Green) because it
17 did not represent an actual open pathway in the physical integrity of reactor containment. Although the Unit
MOV condition affected the mitigating system cornerstone, the Unit 3 finding analysis was assigned to the BI cornerstone
because it best reflected the dominant risk of the finding. This finding has a cross-cutting aspect in the area of
- PBAPS did not thoroughly evaluate problems such that the resolutions addressed the causes and extent of condition P.1(c). Specifically,
- PBA [[]]
PS failed to
thoroughly evaluate previous conditions of degraded and hardened grease on safety-related valves, such that the extent of the condition was considered and the cause was resolved. This cross-cutting aspect is applied to both Units 2 and 3. Enforcement: 10 CFR Part 50, Appendix B, Criterion V, "Instructions, Procedures, and Drawings," requires, in part, that "Activities affecting quality shall be prescribed by documented instructions, procedures, or drawings, of a type appropriate to the
circumstances and shall be accomplished in accordance with these instructions, procedures, or drawings." Contrary to the above, the Exelon
AA-723-300 Series) were not appropriate to the circumstances, in that, they lacked specific instructions to prescribe an acceptable frequency for performing valve stem lubrication, given the limited shelf life of the
- MOV lubrication grease used by the station as described in the above section. As a consequence of this, four safety-related
- MOV s experienced test failures between March 12, 2009 and April 2, 2009, attributed to degraded and hardened lubricating grease. Because this finding is of very low safety significance and has been entered into Exelon's
- MOV Program Procedures were Inadequate with Regard to Periodicity of Preventive Maintenance Activities for Stem Lubrication. .2 Semi-Annual Review to Identify Trends (1 Trend Review Sample) a. Inspection Scope The inspectors reviewed lists of
- NRC or licensee identified) that might indicate the existence of a safety issue. First, the inspectors reviewed a list of approximately 7,250
PBAPS initiated and entered into the CAP action tracking system from December 1, 2008 through June 1, 2009. The
inspectors also reviewed the approximately
- 3450 IR s that remained open with outstanding actions. The list was reviewed and screened to complete the required semi-annual
PI&R trend review. Based on the review, a sample of 58 IRs (listed in the Attachment) were selected for a more detailed review to determine whether the issues were adequately identified and evaluated, and that corrective actions were planned. The
inspectors evaluated the
XVI, "Corrective Action." b. Findings and Observations Based on the review, the inspectors observed that there was an adverse trend of human performance related events during the period. Specific examples included: * the inadequate configuration control of an inoperable control rod (IR 880318);
18 * inadequate risk assessment and maintenance practices for work on the control circuitry for containment isolation valves (IR 887441); * inadequate procedure adherence that resulted in the trip of a
- IR [[871864); and, * removal, for inspection, of an incorrect pin from a spent fuel bundle (IR 853625). The inspectors also noted an adverse trend in equipment reliability issues that challenged plant operations. Specifically: * the build-up of combustible gases in the 3 'A' main power transformer that resulted in an unplanned power reduction (IR 868369); * the failure of]]
IR 891763); * indications of friction between selected Unit 3 control rods and fuel channels (IR 874398); and, * inoperable motor operated valves that resulted from inadequate preventive maintenance and hardened grease (IRs 892191 and 913965).
However, the inspectors noted that
- PBAPS self-identified an adverse trend in station performance and proactively performed a common cause analysis (
IR 896381) to understand the causes for the adverse trend and to identify corrective actions and improvement plans.
.3 Review of Items Entered into the
- IP 71152, "Identification and Resolution of Problems," and in order to help identify repetitive equipment failures or specific human performance issues for follow-up, the inspectors performed screening of all items entered into the licensee'
- CAP. This was accomplished by reviewing the description of each new action request/issue report and attending daily management review committee meetings. 4
OA3 Follow-up of Events and Notices of Enforcement Discretion (71153 - 4 Samples) .1 Personnel Performance - 3 'A' RRP Trip
a. Inspection Scope The inspectors reviewed corrective action documents listed in the Attachment to this report and discussed the events surrounding the trip of the 3 'A'
IC-11-02011, "Recirc MG Set Voltage
Regulator Tuning," and Revision 3 of
- AA -104-101, "Procedure Use and Adherence." b. Findings Introduction: A Green, self-revealing finding occurred when
- RRP [[]]
- MG set voltage regulator. Specifically, maintenance personnel adjusted a potentiometer in the wrong direction which resulted in a trip of the
RRP and an unplanned Unit 3 plant transient.
19 Description: On May 23, 2009, at approximately 9:30 a.m., the
- RRP tripped. The trip occurred while instrument and controls (I&C) maintenance technicians were performing procedure
MG Set Voltage Regulator Tuning,"
step 5.1.6.8. Step 5.1.6.8 states, "Verify step test box potentiometer is at
- CLOSE the switch of the step test circuit." Contrary to the procedure instructions, the potentiometer, on the step test box, that is used to vary the test current applied to the
- RRP [[]]
MG set voltage regulator field, was incorrectly positioned to the minimum resistance (fully clockwise) position. When the
test box switch was closed, the incorrect positioning of the potentiometer resulted in an excessive
- RRP. The loss of core flow caused reactor power to decrease from approximately 75 percent to 33 percent. In response to the loss of the 3 'A'
OT-112, "Unexpected/Unexplained Change in Core Flow" and
executed actions to stabilize the plant in single loop operations.
- PBAPS [['s investigation indicated that there was a mindset among the technicians performing the work that the potentiometer had to be set to the maximum position and that this position was fully clockwise. Interviews with several I&C technicians indicated that the word "]]
MAXIMUM" as it relates to the operation of variable inputs almost always refers to the fully clockwise position. During the pre-job brief there was no mention of
rotating the potentiometer either clockwise or counter-clockwise, only of taking it to maximum. When the technicians reached the job site, the first technician verified the test box was in the maximum position by attempting to rotate the potentiometer in the clockwise
position. The technician then announced what his actions were and handed the procedure to a second technician who read the step and took the same action to verify the potentiometer position. This peer check was flawed because the first technician inappropriately took the action without a peer check and then asked for a peer check after the action was taken. The job supervisor was present during the entire evolution providing management oversight, and failed to notice the incorrect position of the potentiometer. Following the incorrect setting of the potentiometer, the technicians moved the test box switch from the
RRP. Immediately after the event, the technicians and their supervisor checked the connections and potentiometer position and all agreed the setup
was correct. When the team reached the main control room, the procedure was re-read and the technicians realized the error in the positioning of the test box potentiometer. The inspectors reviewed the root cause report to assess its details, accuracy, and planned corrective actions. The inspectors concluded that the root cause report was
thorough, detailed, and comprehensive. The planned and completed corrective actions were appropriate and comprehensive. The licensee identified two root causes and two contributing causes for this event. The root causes included failure to adhere to a Level 1 (step-by-step performance) procedure due to performing work in a
20 knowledge-based versus rule-based manner and the failure to perform an adequate peer check to verify the potentiometer position that resulted in a lost opportunity to identify the error prior to the plant transient.
- PBA [[]]
PS's investigation determined that the
technician performing the work was operating in the knowledge-based thinking mode because he knew that the potentiometer needed to be in the maximum position. If the technician had operated in the rule-based thinking mode, he would have been complying with the procedure instructions verbatim. The peer check was flawed in that the first technician took the action without a peer check and inappropriately asked the second
technician for a peer check after the action was taken. Analysis: The inspectors determined that the
- RRP [[]]
RRP MG set and an unplanned plant transient was a performance deficiency. This finding was more than minor because it was associated with the human performance attribute of the Initiating Events Cornerstone and adversely affected the cornerstone
objective of limiting the likelihood of those events that upset plant stability and challenge critical safety functions. Specifically, this error resulted in an unplanned plant transient that reduced Unit 3 reactor power from 75 percent to 33 percent. In accordance with IMC 0609, Attachment 4, the inspectors determined this finding to be of very low safety significance (Green) since 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. This finding has a cross-cutting aspect in the area of human performance, Work Practices, because
- PBA [[]]
PS did not define and effectively communicate expectations regarding procedural compliance and personnel did not follow procedures H.4(b).
Specifically,
- RRP [[]]
- MG set voltage regulator Enforcement: The inspectors determined that the finding did not represent a violation of regulatory requirements because it involved a procedure violation of a non-safety related procedure. This finding will be tracked as
- FIN 05000278/2009003-02, Inadequate Procedure Adherence Results in Trip of 3 'A' Recirc Pump and Plant Transient. .2 (Closed) Licensee Event Report (
- LER ) 05000278/2009-03-00, Inoperable Containment Isolation Valve Results in Condition Prohibited by
RHR pump suppression pool suction
isolation valve (MO-3-10-013D) was degraded due to a greasing deficiency identified during performance of
- MOV s). It was determined that this condition was prohibited by TSs since this valve is a primary containment isolation valve and was inoperable for containment isolation purposes for a time period longer than allowed by
- TS. The cause of the greasing deficiency was grease hardening primarily due to inadequate preventive maintenance. The valve was repaired and returned to service on March 27, 2009. A finding related to this event was documented in report section 4
OA2.1. This LER is closed.
.3 (Closed)
TSs
21 On February 13, 2009,
TS existed when a TS required action for an inoperable Unit 2 control rod (Control Rod 10-51) was found not met. Specifically, at 9:33 a.m. on February 13, during a plant
walkdown being conducted in preparation to vent selected control rod drive (CRD) hydraulic control units (HCUs), the
- CRD [[]]
- HCU directional control valves (DCVs) for Control Rod 10-51 were discovered to be energized (armed). To comply with
- CRD [[]]
HCU had been rendered inoperable for the conduct of maintenance on
February 11. This condition was due to an operator error that re-armed the
- DCV during the modification of a safety tagging clearance that occurred at approximately 5:30 a.m. on February 12, 2009. On February 13, after the
- PBAPS concluded that there was no actual safety consequences associated with this event. There were no previous similar
LERs identified. A licensee-identified NCV for this issue
is documented in Section
LER is closed. .4 (Closed) LER 05000278/2009-01-00, Control Rods Inoperable During Mode 2 Operations As a Result of Interferences
As a result of control rod interference monitoring testing performed by Operations personnel on January 28, 2009, it was determined that three control rods were inoperable during the Unit 3 shutdown that was performed on January 21. This testing determined that Control Rods 14-55, 18-55, and 42-55 could be inoperable for operational conditions involving time periods when reactor pressure is below 850 psig
(Mode 2 operations). This occurrence was considered reportable as a common cause that resulted in the inoperability of three control rods for approximately 4.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> on January 21, during Mode 2 operations. The common cause is related to control rod blade interferences with the fuel bundle channel.
- PBA [[]]
PS concluded that there were no actual safety consequences associated with this event and that appropriate shutdown
margin was maintained during this event. Subsequently, a control rod interference monitoring and testing program was established.
- LERS identified. The inspectors reviewed the event and concluded that the condition was appropriately reported as a common-cause inoperability. However, no violation or condition prohibited by
TS 3.1.3, Condition E, Unit 3 was taken to
Mode 3 within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> of reactor pressure being reduced below 850 psig; therefore, this
OA5 Other Activities
.1 Quarterly Resident Inspector Observations of Security Personnel and Activities a. Inspection Scope During the inspection period the inspectors conducted observations of security force
personnel and activities to ensure that the activities were consistent with licensee security procedures and regulatory requirements relating to nuclear plant security. These observations took place during both normal and off-normal plant working hours.
2 These quarterly resident inspector observations of security force personnel and activities did not constitute any additional inspection samples. Rather, they were considered an integral part of the inspectors' normal plant status reviews and inspection activities. b. Findings No findings of significance were identified.
- 4OA 6 Meetings, Including Exit Exit Meeting Summary On July 17, 2009, the resident inspectors presented the inspection results to Mr. W. Maguire and other
PBAPS staff, who acknowledged the findings. The inspectors asked the licensee whether any of the material examined during the inspection should
be considered proprietary. No proprietary information was identified. 4OA7 Licensee-Identified Violations The following violation of very low significance (Green) was identified by the licensee
and is a violation of
- TS 3.1.3, Condition C, requires that control rods that are inoperable for reasons other than being stuck shall be fully inserted and disarmed.
- TS 3.1.3, Condition E, requires the unit to be in Mode 3 within 12 hours if Condition C cannot be met. On February 11, the 10-51
- CRD [[]]
HCU was declared inoperable for the conduct of
maintenance and the
- CRD [[]]
- HCU [[]]
DCVs during the modification of a safety tagging clearance that occurred at approximately 5:30 a.m. on February 12. Over 28 hours3.240741e-4 days <br />0.00778 hours <br />4.62963e-5 weeks <br />1.0654e-5 months <br /> later and in excess of the 12-hour completion time allowed by
- IR 880318. Since Control Rod 10-51 remained fully inserted and there was no loss of safety function during the period of non-compliance, this issue is of very low (Green) safety significance. The
LER associated with the event was documented in
Section
- SUPPLE [[]]
- MENTAL [[]]
- INFORM [[]]
- SUPPLE [[]]
- MENTAL [[]]
- INFORM [[]]
- ATION [[]]
- KEY [[]]
- POINTS [[]]
- OF [[]]
CONTACT Exelon Generation Company Personnel W. Maguire, Site Vice President G. Stathes, Plant Manager J. Armstrong, Regulatory Assurance Manager
E. Flick, Engineering Director P. Navin, Work Management Director L. Lucas, Chemistry Manager R. Franssen, Operations Director R. Holmes, Radiation Protection Manager D. DeBoer, Security Manager T. Wasong, Training Director
- LIST [[]]
- OF [[]]
- ITEMS [[]]
- AND [[]]
DISCUSSED
Opened None
Opened/Closed 05000277/2009003-01
- NCV [[]]
- MOV Program Procedures were 05000278/2009003-01 Inadequate with Regard to Periodicity of Preventive Maintenance Activities for Stem Lubrication (Section
FIN Inadequate Procedure Adherence Results in Trip of 3 'A'
Recirc Pump and Plant Transient (Section 4OA3.1)
A-2Closed 05000278/2009-03-00
- LIST [[]]
- OF [[]]
- DOCUME [[]]
- NTS [[]]
- REVIEW [[]]
- SE -16, Attachment A, Revision 2, Power Team Generation Dispatcher/Power System Director (PTGD/PSD) Communications to Peach Bottom
- AA -8000, Revision 2, "Interface Procedure between Energy Delivery (ComED/PECO) and Exelon Generation (Nuclear/Power) for Construction and Maintenance Activities"
- AA -8003, Revision 1, "Interface Procedure between Energy Delivery (ComED/PECO) and Exelon Generation (Nuclear/Power) for Design Engineering and Transmission Planning Activities"
- AA -108-107-1002, Revision 4, "Interface Agreement between Exelon Energy Delivery and Exelon Generation for Switchyard Operations" McDonald, John
- PECO Nuclear Station Switchyard Readiness Certification for Summer 2009," Memo to Michael Pacillio; May 15,
- PE [[]]
IR 913699, Cooling Tower Walkdown Inspection IR 912528, Unit 2 'B' Phase Main Transformer Cooling Bank Not Turning On
A-3IR 907656, Broken Joint Found on 'A' Cooling Tower Lift Pump IR 887537, Unit 3 Auxiliary Transformer Cooling Fan Not Running
Section 1R04: Equipment Alignment Drawing 6280-M-359,
- RC [[]]
- PF -108, Revision 3, Prefire Strategy Plan Control Room, Turbine Building 165' Elevation, Fire Zone 108
- MG Set Room, Radwaste Building, 135' Elevation, Fire Zone 4C Section 1R11: Licensed Operator Requalification Program
- MT [[]]
IR 814380, Continued Increase in Tritium Level in Well #4 IR 791859, Increased Tritium Level Trend for Groundwater Monitoring Well #4
A-4Section 1R13: Maintenance Risk Assessments and Emergent Work Control
- EHC [[]]
- MOV Rising Stem Motor Operated Valve Thrust and Torque Sizing and Set-up Window Determination Methodology, Revision 6 I.E. Bulletin 85-03, Supplement 1: Motor Operated Valve Common Mode Failures During Plant Transients due to Improper Switch Settings
- PMT [[]]
- SB /SBD-000 through 5 Motor Operated valves, Revision 4 M-C-700-241, Limitorque Motor Operator Installation, Revision
- P&ID [[:]]
- PM [[]]
- PM [[]]
WO A1636058, U3 Step Increase in Offgas Flow on 10/18/07
A-5WO A1714764,
IR 936791, U3 Turbine #4 Slop Drain Cover Dislocated Procedure SO 5.7.A-3, Revision 8, Main Condenser Vacuum Leak Monitoring and Search
Section 1R15: Operability Evaluations
- CC -AA-404, Maintenance Specification: Application, Selection, Evaluation and Control of Temporary Leak Repairs
EHC Micron Filters WO M1716915, Replace Filter
Procedure SO 1D.5.A-3, Revision 25, Electrohydraulic Control System Filter Changing and Cleaning
Section 1R22: Surveillance Testing
- CREV Filter Testing ST-M-40D-905-2, Revision 17, Control Room Emergency Ventilation Filter Train 'A' Test
- RPS [[]]
- NRC [[]]
- NRC [[]]
- ST -C-095-820-2, Determination of Dose Equivalent µCi/g I-131 in Primary Coolant ST-C-095-820-3, Determination of Dose Equivalent µCi/g I-131 in Primary Coolant
CH-C-601, Determination of Dose Equivalent I-131
Section
- MOV Rising Stem Motor Operated Valve Thrust and Torque Sizing and Set- up Window Determination Methodology, Revision 6
- AA -302-1006, Generic Letter 96-05 Program Motor-Operated Valve Maintenance and Testing Guidelines, Revision 7 M-C-700-241, Limitorque Motor Operator Installation, Revision
AA-723-300-1001, Motor Operated Valve "At the Valve" Diagnostic Test Reduction
A-7Strategy, Revision
- MOV Rising Stem Motor Operated Valve Thrust and Torque Sizing and Set-up Window Determination Methodology M-C-700-241, Limitorque Motor Operator Installation, Revision 5
- HPCI [[]]
- ID [[:]]
- SMB -000 Valve Actuators, Revision 1 I.E. Bulletin 85-03, Supplement 1: Motor Operated Valve Common Mode Failures during Plant Transients due to Improper Switch Settings Limitorque Bulletin
- PM [[]]
OP: Motor Operator
IR 887441, Fuse 16A-F20 was Blown During PS-9087G Replacement
A-8IR 853625, Incorrect Pins Were Removed & Inspected on Fuel Bundle
- WR [[]]
- IR 874398, Indications of Channel Distortion - Peach Bottom 3 IR 687330, Unplanned Downpower in Response to 3A Recirc Seal Hi Temp
- PTRM [[]]
- HPCI [[]]
- PRA [[]]
- CSR [[]]
- NOS [[]]
- PO [[]]
IR 631157, Peach Bottom 4th 10-Year IST Interval
A-9IR 673505, Security Inattentiveness Allegation
MOD w/o Activities were Closed vs. Rescheduled
Section
- PBAPS [[]]
- LIST [[]]
- OF [[]]
- ACRONY [[]]
PARS Publicly Available Records
A-10PBAPS Peach Bottom Atomic Power Station