ML20210L447
| ML20210L447 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 08/11/1997 |
| From: | Dennis Morey SOUTHERN NUCLEAR OPERATING CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9708210155 | |
| Download: ML20210L447 (3) | |
Text
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- ' *j Dave Morey S:uthern Nucl:ar
. Vice Presdent Operating Compny Farley Project P0. Box 1295 Birmingham, Alabama 35201 Tel 20522.5131 k
SOUTHERN h August 11, 1997 CO M M Energy to Serre Your%rld' Docket Nos.: 50-348 10 CFR 50.4 50-364 U. S. Nuclear Regulatory Commission NFTN: Document Control Desk Washington, DC 20555 Joseph M. Farley Nuclear Plant - Units I and 2 Report No. 97-002-00, Station Blackout Diesel Generator l
Out of Service for Greater Than Ten Days Ladies anc'
'lemen:
In accordance with Technical Specification 6.8.1, the enclosed Report No. 97-002-00 (Shared), is submitted to satisfy the notification requirements of the Station Blackout AAC Reliability Program.
If you have any que:.tions, please advise.
Respectfully submitted, P1 Nim Dave Morey MJA/ mar sr-2CDG. doc Enclosure cc: Mr. L A. Reyes, Region II Administrator 4
f'lgh Mr. J. I. Zimmerman, NRR Project Manager
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Mr. T. M. Ross, Plant Sr. Resident Inspector 9708210155 970811 PDR ADOCK 05000348 P
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ENCI.OSURE Joseph M. Farley Nuclear Plant, Units 1 & 2 Report 97-002-00 Sla_liedflackout Diesel Opnerator O 1LofService for Greatsr Than Ten Days J
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,J ENCLOSURE filation Blackout Diesel Generator Out of Service for Greater Than Ten Dan This Report is being submitted due to the Station Blackout AAC source (2C Diesel Generator (DG)) not being restored to operable status within the time required by Technical Specification (TS) 6.8.1. The Station Blackout AAC Reliability Program (TS 6.8.1), requires that the NRC be notified if the AAC source is out of service for greater than 10 days.
At 0651 on July 21,- 1997, the 2C DG was removed from service for a scheduled outage to perform preventive and ~ corrective maintenance. The scheduled work included 18 month frequency preventive maintenance tasks and the replacement of the Intercooler, Jacket Water and Lube Oil Heat Exchanger tube bundles. Various minor leaks and other corrective maintenance Mms were also scheduled for repair. Per the original schulule, the 2C DG was to be returned t
< ice at approximately 0600 on July 26,1997.
Following maintenance and partial reassembly activities, the Jacket Water system was filled and vented and a hydrostatic test was performed. This test revealed a leak in the # 12 cylinder -
liner which was subsequently replaced. The required cylinder replacement activities resulted in a revised outage schedule and a projected return to service of 2C DG at approximately 0330 on July 30,1997. At approximately 0800 on July ~29, it was discovered that two dowel pins were missing from the # 3 and # 5 main bearings. Investigation and resolution of the missing dowel pin _s caused an additional delay in the return to sersice of the 2C DG. Final reassembly.
and testing activities were completed and the 2C DG was retunied to service at 0925 on" August 2,1997. During the timeframe that 2C DG was out of service, the remaining four emergency diesel generators remained operable and no problems were noted on the normal off site AC povier sources.-
Additional Information No similar Reports have been submitted for the Station Blackout AAC source (2C DG) exceeding the TS 6.8.1 restoration time.
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