IR 05000335/1988025
| ML17222A570 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 10/25/1988 |
| From: | Bibb H, Crlenjak R, Paulk G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML17222A569 | List: |
| References | |
| 50-335-88-25, 50-389-88-25, NUDOCS 8811030071 | |
| Download: ML17222A570 (13) | |
Text
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UNITED STATES i~)UCLEAR REGULATORY'COMM)SSION" RF'GION II 101 MARIETTAST., N.W.
ATLANTA,GEORGIA 30323 Report Nos.:
50-335/88-25 and 50-389/88-25 Licensee:
Florida Power and Light Company 9250 West Flagler Street Miami, FL 33102 Docket Nos.:
50-335 and 50-389 Facility Name:
St. Lucie 1 and
License Nos.:
DPR-67 and NPF-16 Inspection Conducted:
September 4 - October 1, 1988 Inspectors:
G. L. Paulk, Senior R
ident Inspector W s H.
E.
B Resident Approved by:
R.
.
Cr lenjak Section C
f Division of Reactor Projects ate igned O
/
ate Signed r> zalea at Signed SUMMARY Scope:
This inspection involved on site activities in the areas of Technical Specification compliance, operator performance, overall plant operations, quality assurance practices, station and corporate management practices, corrective and preventative maintenance activities, site security procedures, radiation control activities, surveillance activities, and flood protection.
Results:
Of the areas inspected no violations or deviations were identified:
One unresolved item* was identified related to the intent of Ultimate Heat Sink Valve Testing as discussed in paragraph 4.
SS>10000 850OOS35 88i0~7 pDR pDOCK 0 pNu
Unreso ve items are matters a out which more information is required to determine whether they are acceptable or may involve violations or deviation REPORT DETAILS Persons Contacted Licensee Employees J. Barrow, Fire Prevention Coordinator J.
Barrow, Operations Superintendent
- G. Boissy, Plant Manager
- H. Buchanan,.Health. Physics Supervisor
- C. Burton, Operations Supervisor
- R. Dawson, Assistant, Plant Superintendent
- Electrical T. Dillard, Maintenance Superintendent
- R. Frechette, Chemistry Supervisor
- J. Harper, gA Supervisor K. Harris, St. Lucie Site Vice President
- C. Leppla, I
&
C Supervisor
- N. Roos, guality Control Supervisor B. Sculthrope, Reliability and Support Supervisor R. Sipos, Service Manager
- D. West, Technical Staff Supervisor W. White,.Security..Manager
- C. Wilson, Assistant, Plant Superintendent
- Mechanical E; Wunderlich, Reactor Engineering Supervisor Other licensee employees contacted included technicians, operators, mechanics, security force members, and office personnel.
- Attended exit interview Plant Tours (Units 1 and 2)
(71707 and 71710)
The inspectors conducted plant tours periodically during the inspection interval to verify that monitoring equipment was recording as required, equipment was properly tagged, operations personnel were aware of plant conditions, and plant housekeeping efforts were adequate.
The inspectors also determined that appropriate radiation controls were properly established, critical clean areas were being controlled in accordance with procedures, excess equipment or material was stored properly, and combustible materials and debris were disposed of expeditiously.
During tours, the inspectors looked for the existence of unusual fluid leaks, piping vibrations, pipe hanger and seismic restraint settings, various valve and breaker positions, equipment caution and danger tags, component positions, adequacy of fire fighting equipment, and instrument calibration dates.
Some tours were conducted on backshifts.
The frequency of plant tours and control room visits by site management was noted to be adequat ~
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Florida Power and Light Company The inspectors routinely conducted partial walkdowns of Emergency Core Cooling Systems (ECCS).
Valve, breaker/switch lineups and equipment conditions were randomly verified both locally and in the control room.
During the inspection period the inspectors conducted walkdowns in the accessible areas of the plant to verify that system lineups were in accordance with licensee requirements for operability and equipment material conditions were satisfactory.
3.
Plant Operations Review (Units 1 and 2) (71707)
The inspectors, periodically during the inspection interval, reviewed shift logs and operations records, including data sheets, instrument traces, and records of equipment malfunctions.
This review included control room and auxiliary logs, operating orders, standing orders, jumper logs, and equipment tagout records.
The inspectors routinely observed operator alertness and demeanor during plant tours.
During routine operations, control room staffing, control room access, and operator performance and response-actions were observed and evaluated..-
The..
inspectors conducted random off-hours inspections during the reporting interval to assure that operations and security remained at an acceptable level.
Shift turnovers were observed to verify that they were conducted in accordance with approved licensee procedures.
Control room annunciators status was verified.
The inspectors performed an in-depth review of the,.following. safety.-related tagouts (clearances):
Clearance No.
Descri tion Unit
1-9-79 1-9-89 1-9-58 1-9-82 Unit 2 1C Charging Pump,-. Repack 1B Component Cooling Water Pump -
PM 1B Low Pressure Safety Injection Pump Repair Casing Leak lA Instrument Inverter - Troubleshoot 2-8-63 Pressurizer Surge Line Sample Line - Repair Leak 2-9-1 2-9-3 2B Diesel Generator - Repair Lube Oil Leak 2A Charging Pump - Repair Leak 4.
Technical Specification Compliance (Units 1 and 2) (71707)
During this reporting interval, the inspectors verified compliance with limiting conditions for operations (LCOs)
and results of selected
i t"
Florida Power and Light Company
surveillance tests.
These verifications were accomplished by direct observation of monitoring instrumentation, valve positions, switch positions, and review of completed logs and records.
The licensee's compliance with LCO action statements was reviewed on selected occurrences as they happened.
The inspectors verified plant procedures were adequate and complete, and that the correct revision was being used.
Instrumentation and.recorder traces were observed for abnormalities.
The inspectors reviewed the Technical Specification surveillance requirement 4.7.5.1.2, which requires operability verification of the Ultimate Heat Sink (UHS) barrier isolation valves on a semiannual basis
-. for each -unit.
Yalve operabi.l.i.ty requires that the valve be.,capable
.of performing its function, and that all necessary attendant instrumentation, controls, electrical power, or other auxiliary equipment that are required for the system, subsystem, train, component or device to perform its function, are also capable of performing their related support function.
Operating Procedure No. 0360050, Emergency Cooling Water Canal - Periodic Test, is written to implement-the..Technical Specification requirement.
,A revi'ew of the procedure indicated that the procedure was not fully adequate in that it specifies
"complete" system testing from only one unit every six months.
The UHS valves are cycled once each six months from one of the units'ontrol room control switches.
The opposite unit switches and circuitry are verified during the following six month surveillance.
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The UHS system is a shared. system that is controlled from either Unit 1.
or 2.
The surveillance procedure should specify that all subsystem components from both control rooms be checked every six months as well as the shared valve operability checks.
Discussions, with plant management.
indicates disagreement on the above inspector's evaluation.
The licensee felt that they fully met the intent of the Technical Specification requirement.
The inspector stated that system operability verification requires a check of all attendant controls that are normally and procedurally required during operations.
Therefore, the inspector disagreed with the licensee's interpretation.
Until the licensee provides justification as to how the Technical Specification is being met, this item will remain unresolved.
(335/88-25-01)
Additionally, during the inspector's review of the associated UHS valve system circuitry, it was noted that-the low air accumulator pressure transmitter 37-3 had not been calibrated since initial system testing in 1977.
This transmitter is used to alert the operator on the control room annunciator panel E of low air header/system pressure.
The facility instrument and control system manager committed to adding transmitter PT 37-3 to a routine calibrati'on program.
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During the system circuitry review, the inspector noted that Off-Normal Operating Procedure 0030131, Plant Annunciator Summary, was in error
Florida Power and Light Company
related to the setpoint of PS-37-3.
The procedure stated the setpoint should be 580 psi.
This was an error since the system normally operates at about 100 psi.
The inspector requested that the licensee correct this error and determine the basis for, the setpoint chosen.
The original 1977 calibration noted a setpoint of 65 psi.
The licensee initiated action to address this concern.
5.
Maintenance Observation (62703)
Station maintenance activities of selected safety-related systems and components were observed/reviewed to ascertain that they were conducted in accordance..with requieements.
The following items were considered during this review:
limiting conditions for operations were met; activities were accomplished using approved procedures; functional tests and/or calibrations were performed prior to retur ning components or systems to service; quality control records were maintained; activities were accomplished by qualified personnel; parts and materials used were properly.certified;. and radiological controls
.were implemented as required.
Work requests were reviewed to determine status of outstanding jobs and to assure that priority was assigned to safety-related equipment.
The inspectors observed portions of the following maintenance activities:
PWO No.
Descri tion Unit 1 8027 8031 8032 Unit 2 Steam Header Pressure Instrument on Hot Shutdown Panel - Cal ibr ate Reactor Protection System Trip Bypass Logic-Calibration H2 Recombiner Temperature Instruments
- Calibrate 2163 2187 2194 Auxiliary Feedwater Pump 2C -
PM 2B Diesel Generator Air Start Motors -
PM Iodine Removal System Hydrazine Pump 2B The inspector reviewed the plant maintenance procedure related to the impressed current corrosion protection system used on the intake channel hurricane protection groins and bulkheads.
The licensee requires a
monthly check of the impressed current groups and/or individual anode circuits as described in FSAR section 3.4 and Maintenance Procedure No. 0610069 Rev. 3,
"Procedure for Taking Reference Cell Readings for Cathodic Protection."
Monthly cathodic protection records are maintained in the plant files in accordance with QI 17-PR/PSL-1,
"Quality Assurance
Florida Power and Light Company
Records."
The inspector reviewed recently completed procedures and found no significant deficiencies.
During a routine plant tour, the inspector noted two instrument line mounting plates had become detached from their support mechanisms due to corrosion of the mounting bolts.
Instruments involved (FIC-39-3B and FIC-39-3A) were part of the Steam Generator Wet Layup System.
Appropriate plant management was notified and corrective action taken.
The inspector reviewed the electrical grounding requirements and conduit installation used for plant safety-related equipment.
The following document.
were reviewed:
National Electric Code Article 250, Grounding Conductors EBASCO Cable and Conduit List Installation Notes for St. Lucie, Dwg.
No 8770-B-328 EBASCO Electrical General Installation Notes for St. Lucie, Dwg.
No. 2998-8-271 EBABCO Dwg. No. 8770-B-412, Grounding Notes A general
'.nspection of-electrical components, cable spreading.rooms, and cable tray terminations indicated general compliance with the above requirements.
An exception was noted in that flex conduit 20449P-SB failed to have ground cable in the Unit
cable spreading room.
Appropriate electrical management was notified and a
work order was written to correct the deficiency.
The conduit did meet the code requirement.since any conduit terminated in a cable tray is continuously grounded if tightly bolted to the tray for support with metal to metal contact.
However, the conduit did not meet the installation requirements of Dwg.
No. 2998-8-271 in that an additional ground strap should be installed.
The licensee took corrective action to address the concern.
A.
Corrosion Control Program During the recent St. Lucie Unit I refueling outage, the Corrosion Control Engineering Section of General Engineering's Research and Evaluation Laboratory provided technical assistance and support for several corrosion related projects for the plant.
Visual inspections were conducted on the condenser water boxes, intake structures, intake cooling water piping, turbine cooling water and component cooling water heat 'exchangers.
These inspections included evaluations of coatings, corrosion damage, and the effectiveness and condition of the cathodic protection systems.
The following is a summary of these projects:
(I)
Condenser Water Boxes
Florida Power and Light Company
Visual inspections of the condenser water boxes revealed numerous corrosion pits on the water box walls, which were marked and repaired.
Most of these pits were inactive and under the old coating, but there were a
few active corrosion pits where the coating had failed.
All four inlet water boxes and the 1A1 and 182 tube sheets were recoated with a two part solid epoxy coating.
All anodes were removed and inspected.
The kynar sleeve on all of the anodes was replaced.
All of the reference electrodes were removed and tested.
Ten of the sixteen electrodes were cracked and/or inaccurate.
These electrodes were replaced.
(2)
Turbine Cooling Water Heat Exchanger No active corrosion was found in these heat exchangers.
The channel and coating were replaced with a two part solid epoxy coating.
All four anodes were in good condition.
All four reference electrodes were cracked and therefore replaced.
(3)
Component Cooling Water Heat Exchanger Active corrosion was found on the channel ends of both heat exchangers.
This corrosion was located 2 to 5 inches out from the tube sheet. around the.circumference of the channel end.
The tar epoxy coating in the area of the pits had failed, and although the zinc anodes were functioning, the cathodic protection supplied by them was insufficient to mitigate the corrosion.
The coating was repaired and the anodes replaced.
6.
Physical Protection (Units 1 and 2) (71881)
The inspectors verified by observation and interviews during the reporting interval that measures taken to assure the physical protection of the facility -met current requirements.
Areas inspected included the organization of the security force; the establishment and maintenance of
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gates, doors and isolation zones in the proper conditions; proper access control and badging; and adherence to procedures.
7.
Flood Protection (92706)
In preparation for hurricane season, the inspector reviewed licensee plans for coping with natural emergencies to assure regulatory requirements were met in accordance the facility Final Safety Analysis Report, the Technical Specifications, and the plant implementing procedures.
The following documents were reviewed:
Emergency Plan Implementing Procedure No. 3100024E, Natural Emergencies Off-Normal Operating Procedures 1-3000030 and 2-3000030, Severe Weather Preparations
Florida Power and Light Company
Technical Specification 3/4.7.6, Flood Protection Final Safety Analysis Report Sections 3.4, Water Level (Flood)
Design, and 9.2.7, Ultimate Heat Sink During the inspection the following deficiencies and/or results were identified:
(2)
Unit 2 Technical Specification 3.7.6. 1 requires that flood protection be provided for the facility site via stoplogs which shall be installed on the southside of the Reactor Auxiliary Building and the southernmost door on the east wall whenever a hurricane warning for the plant is posted.
The inspector toured the applicable areas and found one set of stoplogs in a warehouse area and the other required stoplog near the southernmost door.
The specific stoplogs were not readily identifiable, since numerous other stoplogs of varying sizes were also stored in the warehouse area.
The licensee committed to install the respective stoplogs in.storage racks located adjacent to the specified accesses.
E-Plan Procedure No. 3100024E was also upgraded to more clearly identify the doors and stoplogs addressed in the Technical Specification.
Technical Specification surveillance requirement 4.7.6.1. 1 requires
.that the St. Lucie Plant Beach Survey Procedure be conductedat least once per year between the dates of May 25 and June 7.
A special report containing the results of these surveys are required to be prepared and submitted to the Commission pursuant to Technical Specification 6.9.2 within 30 days following the completion of the survey.
A review of records and discussions with licensee management indicates that the annual beach survey results for 1988 were not submitted to the Commission in a timely manner due to circumstances beyond the plants'ontrol.
The survey is performed on a routine basis annually by the Corporate Land Management Group.
The survey was submitted to the NRC on September 14, 1988.
The completion of the survey results was delayed due to:
inclement weather; incorrect measurements taken during the survey due to loss survey markers and growth of under-brush hiding markers; and incomplete survey contractor data.
At the completion of the dune survey by the Land Management Group (LMG), the survey report is forwarded to the corporate licensing staff for submittal to the Commission.
The LMG results were forwarded to licensing on August 16, 1988.
The report was lost'in routing and never reached corporate licensing.
Corporate licensing typically has a Commitment Tracking System (C-TRAC) to monitor reports that are due to the NRC.
Due to an administrative error, the beach dune survey normally due in July 1988, was deleted from the C-TRAC computer system.
It should be noted, however, that the report submittal met the "30 days following completion of the survey" technical specification requirement only because the survey was late in being completed.
It should also be noted that the inspector requested a copy of the survey results on
Florida Power and Light Company
(3)
September 12, 1988, which prompted the licensee to track down the report.
The inspector's discussion with corporate licensing indicates the C-TRAC system has been corrected to incorporate future survey report due dates.
Additionally, the LMG has developed a master plan detail-ing all monument/marker locations to prevent contractor confusion and delays in the future.
A tour of the secondary Ultimate Heat Sink (UHS) Valve cubicle by the inspector indicated that the foundation supports for the valve operator rams and similar supports
,in the two rooms were severely corroded.
The UHS cubicles also are required to be sealed for flood protection requirements as part of the Maintenance Department checklist in the hurricane warning preparations section of E-Plan Procedure No. 3100024E.
The procedure requires access/flood protection hatch covers be installed and bolted down for hurricane warning preparations as noted on drawing 8770-8-73.2.
The bolts for the manway hatch covers were not located near the hatches for ready implementation of this E-Plan requirement.
The inspector's review indicated that 24 bolts and lock washers are used for this hatch cover installation process.
A search of operating stores division balance records indicated that these bolts/lock washers are normally available in stores.
However, the minimum allowance allowed on the balance record before reorder was indicated to be 19 bolts and 251 lockwashers.
Bolt usage has been averaging 7 bolts/week since these type bolts are used for various applications.
No plan or procedure indicated, therefore, that the 24 bolt requirement would be met.
When the licensee was notified of the above discrepancies, the following corrective actions were instituted:
(a)
The division balance stores records were updated to specify a
minimum balance of 50 bolts on site.
(b)
Stores has been directed to bag and tag 24 bolts and lockwashers and place in the respective storage bin with an appropriate usage label of "For Use on Ultimate Heat Sink Manway Covers Only."
(c)
Corrosion prevention measures were scheduled to address the foundation deficiencies.
(4)
Technical Specification surveillance requirement 4.7.6.1.3 requires that meterological forecasts be obtained from the National Hurricane Center in Miami, Florida at least once per six hours during either a
hurricane watch or a hurricane warning.
A review of Administrative Procedure (AP) 0010125, Schedule of Periodic Tests, check. sheet 1,
paragraph 26.n.
indicated this surveillance requirement would be logged in the operator log.
The operations supervisor initiated a
procedure change to more clearly address the logging criterio I
Florida Power and Light Company 8.
Surveillance Observations (61726)
During the inspection period, the inspectors verified plant operations in compliance with selected technical specifications (TS)
requirements.
Typical of these were confirmation of compliance with TS for reactor coolant chemistry, refueling water -tank,'ontainment pressure, control room ventilation, and AC and DC electrical sources.
The inspectors verified that testing was performed'n accordance with adequate procedures, test instrumentations were calibrated, limiting conditions for operations were met, removal and restoration of the affected components were accomplished, test results met requirements and were reviewed by personnel other than--the-individual-directing the test, and that deficiencies identified during the testing were properly reviewed and resolved by appropriate management personnel.
The inspectors observed/reviewed the following surveillance(s):
Unit
OP 1-0030120 OP 0030126 Pre-Start Checkoff List Estimated Critical Conditions and Inverse Count Rate Ratio Worksheet OP 1-0410050 "
"-HPSI/LPSI Periodic. Test'=
Unit 2 OP 2-0110057 Periodic Surveillance of DNB Margin OP 2-0120026
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Reactivity - Deviation From Design OP 2-0420050 Containment Spray and Iodine Removal System
- Periodic Test 9.
Licensee Action on Previous Enforcement Matters (92701)
(Closed)
TI 2515/98, Information of High Temperature Inside Containment/Drywell In PWR and BWR Plants.
The inspectors collected the required information under this Temporary Instruction (TI) and forwarded it to the designated contact in Region II.
This item is closed.
10.
Exit Interview The inspection scope and results were summarized on September 30, 1988, with those persons indicated in paragraph 1.
The inspectors described the areas inspected and discussed in detail the inspection findings.
The licensee did not identify as proprietary any of the material provided to or reviewed by the inspectors during this inspection.
Dissenting comments were received from the licensee in regards to the discussion in paragraph 4 related to the intent of T.S. 4.7.5.1.2.