ML20236C805

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Special Rept:On 871005,two Fire Barriers for Emergency Diesel Generator Exhaust Stack Penetrations Found to Be Nonfunctional.Tech Spec 3.7.9 Compensatory Measures Fulfilled & Smoke Detector Operability Verified
ML20236C805
Person / Time
Site: Trojan File:Portland General Electric icon.png
Issue date: 10/21/1987
From: Olmstead C
PORTLAND GENERAL ELECTRIC CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CAO-370-87, NUDOCS 8710270340
Download: ML20236C805 (1)


Text

.

m-se Portland General Electric Company Trojan Nuclear Plant October 21, 1987 P.O. Box 439 CAO-370-87 Rainier, Oregon 97048 (503)556 3713 U.S.

Nuclear Regulatory Commission Document. Control Desk g.cy Washington, D.

C.

20555 N lc Gentlemen:

7

> c Special Report 4

Limiting Condition for Operation (LCO) 3.7.9 of the Trojan d i

l Technical Specifications requires the submittal of a Special Report if a 3-hour fire barrier is nonfunctional for greater than seven days.

During a routine inspection on October 5, 1987, two fire barriers for the emergency diesel generator (EDG) exhaust stack penetrations in the west EDG room roof were found to be nonfunctional.

In addition, during an inspection on October 6, 1987, four fire barriers for the EDG exhaust stack penetrations in the east EDG room (east wall) were found to be nonfunctional.

Since it is not known exactly when these penetrations became nonfunctional, it is. assumed they were nonfunctional for greater than seven days.

Compensatory measures described in Technical Specification 3.7.9 were fulfilled (hourly fire patrol established'and verification of smoke detector operability) on October 5, 1987 for the west EDG room and October 6, 1987 for the east EDG room.

The estimated completion date for repair and return to service is November 1, 1987.

Sincerely, SW y

C.

A.

Olmstead General Manager ut CAO/RPS DWS/BLK:sg c

Mr. David Kish, Director Mr.

R.

C.

Barr State of Oregon USNRC Resident Inspector Department of Energy Trojan Nuclear Plant Mr. John B.

Martin Distribution

)

Regional Administrator j

US Nuclear Regulatory Commission i

l 8710270340 871021 PDR ADOCK 05000344 Ig S

PDR