ML20086J045

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Telecopy AO 75-8:on 750201,excessive Leakage Found on RCIC Inboard Steam Supply Valve MO-3-13-15.Caused by Worn Packing.Valve Replaced
ML20086J045
Person / Time
Site: Peach Bottom 
Issue date: 02/03/1975
From: Ullrich W
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20086J040 List:
References
AO-75-8, NUDOCS 8401230072
Download: ML20086J045 (1)


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PPILADELPHIA ELECTRIC COMPANY ggy ggg; Peach Bottom Atomic Power Station l5 Delta, Pennsylvania l'

17314 February 3, 1975

!! Mr. James P. O'Reilly, Director l! United States Atomic Energy Con::nission Dircctorate of Regulatory Operations 631 Park Avenue

.t King of Prussia, Pennsylvania 19406 Subjcet:

Abnormal Occurrence 24-Hour Notification Confirming W. T. Ullrich's phone conversation with Mr. Walt Baunack, A.E.C. Region 1 Regulatory Operations Office on February 2, 1975.

qw..?,s Refcrence:

1.icense Number DPR-56 4' '

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Technical Specification

Reference:

4.7.A.2.f

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7.2 ;

.i Rrport No.:

50-278-75-8

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.t R p3rt Date:

February 2, 1975

) Occurrence Date:

February 1, 1975

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I Fccility:

Peach Bottom Atomic Power Station

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R.D. 1. Delta, Pennsylvania 17314 1

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Identification of Occurrence:

Ezeg;::ive 12:h g: ef ECIC 1:h: rd ::::= cupply velve (MO-3-13-15).

C2nditions Prior to Occurrence:

l Unit 3 shutdown for piping inspection.

J Description of Occurrence:

During a routine local leak rate test of the RCIC steam supply valves, MO-3-13-15 was found to leak in excess of 2000 cc/ min.

i _D signation of Apparent Cause of Occurrences jY Worn packing.

i i Analysis of Occurrence:

The safety implications of this occurrence are minimal since the combined leakage thru both valve seats (HO-3-13-15 and H0-13-13-16) was found to be approximately 120 cc/ min.'

f Corrcetive Actions The valve was replaced.

Local le..n. rate tcsting was performed and the leakage was

' found to be 120 cc/ min.

This is an acceptable leak rate.

Failure Data:

A previous failure of this type was reported as Abnormal Occurrence Report Number 50-277-75-7.

8401230072 750211 PDR ADOCK 05000278 S

PDR 1402 V?ry truly yours.

W

< E T. Ullrich, Superintendent i Caanh Bettom Atomic Power Station

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