ML20101C383
| ML20101C383 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 05/29/1992 |
| From: | Watson R CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NLS-92-148, NUDOCS 9206090182 | |
| Download: ML20101C383 (4) | |
Text
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CD&L Carolina Power & Light Company P o Box 1151
- Ralegh. N C 27602 W U lbb2 SERIAL: NLS 92148 n A. WATSON s.nw va Pre.ni Near o.n.raton United States Nuclear Regulatory Commission ATTENTION: Document Control Desk Washington, DC 20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT f;OS.1 AND 2 DOCKET NOS. 50-325 & 50-324/ LICENSE NOS. DPR-71 & DPR-62 CORRECTIVE ACTION PLANS Gentlemen:
The purpose of this letter is to document commitments made by Carolina Power & Light Company (CP&L) to the Nuclear Regulatory Commission during our May 12,1992 meeting with regard to major work items that we intend to complete prior to start-up of the Brunswick Steam Electric Plant, Units 1 and 2, These commitments, which are described in Enclosure 1, address comprehensive actions on the Company's part to correct structural deficiencies identified with diesel generator building wall bolting as well as equipment repairs and enhancements to improve the operational reliabi!ity of botn Brunswick Plant units upon their start up. Some of these commitments are to conduct further field inspections and assessments; any operability issues arrising from these inspections will be resolved prior to start up.
Subsequent CP&L correspondence willidentify to the NRC the commitments that were made during the May 12,1992 meeting for implementatioa for each unit prior to start-up from their next scheduled refueling nutages, These commitments will address actions to reduce work 'akiog, to further improve unit operational reliability, and to enhance plant safety.
Please refer any questions regarding this submittal to Mr. D. C. McCarthy at (919) 546-6901.
Ynuts very truiv.
bl Y
R. A. Watson WRM/wrm (ca-plan 007)
Enclosure cc:
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NLS 92148 / Page 2 0 A Watson, having been Urst duly sworn. did depose and say that the infortnation contained herein is :rve and correct to the best of his formation, knowledge and belief; and the sources of his information are officers, employees, contractors, and agents of Carolina Power & Light Company.
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ENCLOSURE 1 BRUNSWICK STEAM ELECTRIC PLANT, UNITS 1 AND 2 NRC DOCKET NOS. 50 325 & 50 324 OPERATING LICENSE NOS. DPR 71 & DPR 62 CORRECTIVE ACTION PLANS Prior to start up of the Brunswick Steam Electric Plant, Units 1 and 2 from their current outages, Carolina Power Light Company ummits to complete the following activitie.:
1.
Repair of five reinforced concrete non load bearing wall panels in the diesel generator building to restore them to their design configuration. Carolina Power &
Light Company will also complete repairs to structural angle restraints for diesel generator building block walls to restore the walls to their design configuration.
Thic tepair work underway is being conducted with anpropriate qua'ity control procedures and with quality control verification of WM and matericts.
7.
Perform a design review and a field inspection review, when necessary, of the non-safety masonry walls at the Brunswick Plant to verify the walls are appropriately classified as non safety.
3.
Remove accessible non functional through bolts and install cover plates over the
- holes.
4.
Perform an Iritogrity inspection M., for cracks, general condition) of unreinforced masonry wall'. '. hat are classified as safety related.
5.
Repair of walls being upgraded to seismic classification in the control building (elevation 49 foot) that have been determined to be required as a pressure boundary for control room habitability.
6.
Complete currosion repairs to existing service water lubrication water piping supports.
7.
Perform a third party walkdown of non-pipe support short term structural integrity items and pipe supports in areas with high corrosion potential to validate design assumptions.
J.
Review the IE Buttetin 79 02 (Pipe Support Anchor) Program to ensure compliance and to ensure methods of inspection used would have detected deficient bolt installation.
9.
Conduct a field in.spection and design review to assure service water system pump operability and short term quplification.
In addition to the above activities, Carolina Power & Light Company will also complete the following operational reliability improvements prior to start-up of the Brunswick Steam Electric Plant, Units 1 and 2 from their current outages:
1, Replace eu.cnt transformers in the emergency busses that would require a dual unit outage.
El 1
2.
Complete pre startup items for Unit I and Unit 2 which have been identified during hot side walkdowns.
3.
Rettuce the number of temporary conditions.
4.
Reduce the number of operator work around items, i
5.
Roduce the nurnbor of corrective maintenance items.
O.
Repair the Unit 1 UPS pri Mry inverter.
"r.
Correct leakage on a feedwater check valve hinge pin end a m31n recam iscistion valve (MSIV) packing (total was loss than 50 porcent of Technical Specificatior*
allowed limit) and a nitrogen leak on a drywell cooler, which was identified during Unit 1 drywellinspections.
D.
Complete repairs to neutron monitoring detectors identified as needing repair.
9.
Complete the Unit 1 battery discharge tests original'*/ scheduled for the next refueling outage.
10.
Complete the Unit 1 socendary contemnt isolation test sch6COled for tho next refueling outage.
11.
Complete the Un!t 2 turbine excitor coupling changoout and alignment.
12.
Install modifications to enhance turbine partial arc operation.
13.
Complete refurbishing the Unit 2 control valve power packs and changing out turbine electro hydraulic control system accumulators.
14.
Complete balancing of all four emergency diesel generators end the inspection of cylinder 4L on emergency diesel generators 2 and 3.
15.
Replace the 2B reactor feed pump wear ring, 10, Repair the ID control rod drive pump.
17 Qualify the emorponcy diosol generator exhaust pipe supports to include tornado loading requirements.
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