ML20236S841

Special Rept:On 870513,fire Protection Coordinator Discovered Damage to Fire Barrier Wall in Entrance to Radiation Access Control Area.Probably Caused by Personnel Negligence.Repairs to Wall Should Be Completed by 870731

ML20236S841
Person / Time
Site:	Davis Besse
Issue date:	06/12/1987
From:	Storz L TOLEDO EDISON CO.
To:	Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
1-735, KA87-0199, KA87-199, NP-45-87-01, NP-45-87-1, NUDOCS 8711300132
Download: ML20236S841 (2)

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EDISON PLAZA I I i 300 MADISON AVENOE FlltMb Docket No. 50 346 TOLEDO. OHIO 43652-0001 Log No. KA87- 0199 License No. NPF-3 NP-45-87-01 Serial No. 1-735 i

June 12, 1987 Mr. A. Bert Davis, Regional Administrator United States Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60317

Subject:

Special Report of a Degraded Fire Barrier Resulting from Personnel Negligence During a routine plant tour on May 13, 1987, a Fire Protection Coordinator discovered damage to a fire barrier wall in the entrance to the Radiation Access Control Area (RACA). The metal lath and plaster wall was found to have two gouges, each approximately four inches long by two inches wide. The wall, which encloses redundant electrical cables related to the safe shutdown capability of the plant, consists of two panels separated by an air space to achieve a three hour fire rating. Only the exterior panel was damaged.

The plant was in a cold shutdown condition at the time of the discovery.

The degraded condition of the fire barrier wall in Fire Area CC made it inoperable and the action statement of Technical Specification 3.7.10.a was entered. An hourly fire watch patrol was already in effect in Fire Area CC for other identified fire protection deficiencies (Licensee Event Report 86-034). A Potential Condition Adverse to Quality Report was issued, prompting the initiation of corrective maintenance. All of the required materials were not available,however, and repair of the wall has been delayed until their receipt.

The wall was probably damaged as a result of personnel negligence while transporting equipment in RACA. More specific identification of cause cannot be deduced from the general nature of the gouges and plant management has not been able to identify the specific event or personnel responsible for this damage. The fire barrier wall has been in place for approximately two years with no damage reported until this incident. The fire barrier wall is a 8711300132 R 870612 3 ADO K O 6 S g _LL

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Docket No. 50-346 License No. NPF-3 Serial No. 1-735 June 12, 1987 Page 2 sturdy structure and is not normally at risk of damage due to transporting equipment, therefore no additional protective devices are deemed necessary.

This appears to be an isolated incident. It is estimated that repairs to the wall will be completed by July 31, 1987.

This report is submitted in accordance with Technical Specifications 3.7.10.a and 6.9.2, which require a 30 day Special Report whenever a fire barrier is inoperable for greater than.seven consecutive days.

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Louis F. Storz Plant Manager Davis-Besse Nuclear Power Station LFS/ed cc: Mr. Paul Byron DB-1 NRC Resident Inspector USNRC Document Control Desk Washington, D. C. 20555

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