ML20211P633

Special Rept:On 861110,diesel Fire Pump Taken Out of Svc to Troubleshoot Lube Oil Pressure Switch.Sys Cross Tied to Unit 2 Fire Suppression Sys as Back Up.On 861026 & 28,occurrence Repts Written for Inoperable Fire Door & Pump,Respectively

ML20211P633
Person / Time
Site:	Nine Mile Point
Issue date:	11/24/1986
From:	Lempges T NIAGARA MOHAWK POWER CORP.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NMP-22050, NUDOCS 8612190110
Download: ML20211P633 (2)

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NMP-22050 l NIAGARA MOHAWK POWER CORPORATION l-NIAGARA MOHAWK 300 ERIE SouLEVARD west j symAcusE,N.Y: f 3202 -

vce aavoe November 24, 1986 l

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Dr. Thomas E. Murley  ;

Regional Administrator  !

United States Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, PA 19406

.RE: Docket No. 50-220 SPECIAL REPORT Gentlemen:

In accordance with Nine Mile Point Unit 1 (NMP1) Technical Specification sections 3.6.10.1 and 6.9.2.b. , we hereby submit the following Special Report regarding an inoperable fire barrier.

On October 26, 1986, an Occurrence Report was written because Fire Door #24 was inoperable for more than 14 days. The door would not close under its own power. The positive pressure in the Turbine Access Area was greater than the door's own closure power.

i Measures to maintain compliance with Section 3.6.10.1 of NMP1 Technical Specifications were implemented. The door has since been replaced and closes under its own power.

In accordance with NMP1 Technical Specification Sections 3.6.7.b and 6.9.2.b we report the following.

On October 28, 1986, an Occurrence Report was written because an electrical fire pump was inoperabic for more than 7 days. The relief valve cracked and needs replacing.

The pump will be restored to an operabic status as soon as replacement parts are made available. Meanwhile, the diesel fire pump was available for back-up with the following exception:

On November 10, 1986, the diesel fire pump was taken out of service to trouble-shoot a lube oil pressure switch. Efforts to comply with Technical Specification Section 3.6.7.c included cross ticing to Nine Mile Point Unit 2's fire suppression system as a back-up. In accordance with Section 6.9.2.a of NMP1's Technical Specifications, the Regional Office was notified on November 10, 1986.

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Confirmation via telecopy was made to the Regional Office on the first working day after the event.and this correspondence serves as the follow-up to the initial notification.

The diesel fire pump has since been returned to an operable status.

Sincerely, JA~~ d Thomas E. Lempges r

, Vice President Nuclear Generation TEL/amw cc: Document Control Desk

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