ML19208A731

Forwards LER 79-040/01T-0

ML19208A731
Person / Time
Site:	Peach Bottom
Issue date:	09/05/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19208A732	List: ML19208A731 ML19208A736
References
NUDOCS 7909170381
Download: ML19208A731 (3)

Text

- r PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 12156841 4000 September 5, 1979 Mr. Boyce H. Grier, Director Office of Inspection and Enforcement Region I United States Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406

SUBJECT:

Licensee Event Report Narrative Descrintion The following occurrence was renorted to 't r . Greenman, Region I, Office of Inspection and Enforcement on August 22, 1979.

Reference:

Docket Number 50-277 50-278 Report No: LER 2-79-40/1T Report _Date: September 5, 1979 Occurrence Date: August 21, 1979 Facility: Peach Botton A t o r.i c Power Station

't . 3 . 1, Delta, PA 17314 Technical Sy cification Reference!

Technical Specification 3.14.7.4 states in part that if the requirements of 3.14.B.1, 2, or 3 cannot be net, " establish a continuous fire watch with back up fire sunpression equipment for the unprotected area ( !! P C I , Cable Snreading, Computer, Diesel Generator) within one nour."

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Mr. Boyce H. Grier Page 2 September 5, 1979 LER 2-79-40/1T Description of the Event:

On the morning of 8/21/79, two separate jobs were being conducted by contract personnel in the diesel generator building.

Each of these jobs required that a fire watch be posted. The fire watches were posted per procedure. Later that morning, one group completed its task and the fire watch for that group failed

o restore the CO2 system t o normal in the E2 diesel generator bay. He assumed that the fire watch for the second group required that the CO2 system remain out of service. The second group had no knowledge that this particular section 'f the fire protection system was out of service since they were working in another area. As a result of these actions, the E2 diesel generator area was without a fire watch f or a period of about ten minutes.

Consequences of Event:

There is minimal safety significance associated with this occurrence since there was no work being done in the diesel generator buy during the period that the fire watch was not present. In addition, a guard remained posted at the only open entrance to the diesel generator building and would have promptly notified supervision if smoke er fire were detected. Another noteworthy fact is that during a LOCA start of the diesel generators, the CO2 system is automatically disabled.

Cause of Event:

Failure to follow procedure which designates duties of a fire watch.

Corrective Action:

Immediately upon discovery of this incident, the CO2 system in the E2 diesel generator bay was restored to service. The total time that the system was inoperable coincident with no fire watch present was about ten minutes.

a-

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't r . 3oyce H. Grier Page 3 September 5, 1979 LER 2-79-40/IT Upon discovery of this incident, all work in the diesel generator building was halted until all personnel involved were reinstructed on the requirements of performing work in an area where a fire watch was posted. Additional contract personnel have also been reinstructed in this same matter.

Yours truly,

. . Cooneyt Su erintenda.it Generation Civision-Nuclear Attachment ec: Director, NRC - Office of Inspection and Enforcement Mr. Norman M. Haller, NRC - Office of Manazement &

Program Analysis

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