ML20086H130

Telecopy AO 75-62:in 750921,RHR Head Spray Stay Fill Vent LS-5223 Found Inoperable.Caused by Binding in Switch Float Assembly.Stay Fill Tank Refilled & Switch Will Be Repaired

ML20086H130
Person / Time
Site:	Peach Bottom
Issue date:	09/22/1975
From:	Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
AO-75-62, NUDOCS 8401130437
Download: ML20086H130 (1)

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PRILADELPHIA ELECTRIC COMPA5Y Peach Botton Atomic Power Station Delta. Pennsylvania

- II31 September 22 1975

? Mr. James P. O'Reilly. Director .  ;

Office of Inspection and Enforcenent Region 1 ,[jdA

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United States Nuclear Regulatory Commission pg h i

631 Park Avenue King of Prussia. Pennsylvania 19406

Subject:

Abnormal Occurrence 24-Hour Noti fication .

Confirming R. S. Fleischmann's' phone conversation with Mr. Walt Baunack.

Region 1 United States suelear Regulatory Co= mission on 9/22/75

Reference:

License Number DPR-56 Technical Specification

Reference:

4.5 0 Report So.: 50-278-T5-62 Report Date: September 22 1975 Occurrence Date: September 21. 1975 Facility: Peach Botton Atomic Power Station

, R.D. 1. Delta, Pennsylvania 17314 s

Identification of Occurrence: .

I Failure of LS-5223 to operate SV-5223 (RHR head spray stay fill vent)

% Conditions Prior to Occurrence Cold shutdown.

. Description of Occurrence :

During a routine instrument aurveillance test. LS-5223 was found'to be inoperable. -

Designation of Apparent Cause'of Occurrence:

Binding in the switch flo,at assembly.

, Analysis of Occurrence.

The head spray line was full prior to the test, and the reactor was in y

the cold shutdown condition. This occurrence has minimal safety implications.

. Corrective Action:

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. The stay fill tank was refilled. The switch will be repaired.

Failure Data:

Previous failu'res reported as 50-277-75-4 and 50-278-75.

Very truly yours.

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l W. T. Ullrich. Superintendent 1

t Peach Botton Atomic Power Station l '

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8401130437 750922 '

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. PDR ADOCK 05000278 S

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