05000278/LER-1982-010

LER 82-010/03L-0:on 820618,downscale Failure of Drywell 0-70 Psig Pressure Recorder Occurred.Caused by Blown 0.3 Ampere Fuse Installed on Positive Side of Power Supply to Transmitter Circuit Board.Fuse Replaced

ML20055B631
Person / Time
Site:	Peach Bottom
Issue date:	07/13/1982
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-82-010-03L, LER-82-10-3L, NUDOCS 8207220567
Download: ML20055B631 (1)

LER-2082-010,

Event date:
Report date:
2782082010R00 - NRC Website

text

Mr. R. C. Haynes No. 3-82-10/3L Ad2in i st rat or U.S. NuClect Regulatory Commission 631 Park Avenue King of Prussia, PA 19406

Dear Mr. Haynes:

This I$R concerns the f ailure of a drywell pressure recorder.

Applicable Tech Spec is 4.2.F.

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80 P, S 80 65 ooCKET NUMSER tif EVENT DESCRIPTION AND PROBABLE CONSEQUENCES to o 2 I During power operation of Unit 3 a downscale failure of the drywell l EI 0-70 PSIG pressure recorder occurred. The redundant 0-70 PSIG [

. El pressure recorder was verified operable. Applicable Tech Spec is l 4.2.F. l o 6 1 I

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, o l The cause of the failure s blown 0.3 AMP fuse installed on the ,

, , g positive sideof the power supply to the transmitter circuit board. ,

The fuse was replaced and the recorder returned to service the same ,

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