ML19262A177
| ML19262A177 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/13/1974 |
| From: | Herbein J METROPOLITAN EDISON CO. |
| To: | |
| References | |
| NUDOCS 7910260503 | |
| Download: ML19262A177 (1) | |
Text
METRO?OUTAN EDISC* COMPANY sussimmorcrusut,ucununtsccoonno
/
TELEPHONE 717-
/
ST OFFICE BOX 480 MIDDLETOWN. PENNSYLVANIA 17057 Septeeber 13, 1974
]D*'PlD f6 J s L A\\ d [R 7 0 "\\dM Mr. J.P. O'Reilly, Director Directorate Of Regulatory Region I 631 Park Avenue
. King Of Prussia Pa.
19406 Operating nse DPR-50 Docket 50f269
Subject:
Abnomal Occurrence Ho. A0 74-15
Dear Mr. C'Reilly:
This telegram is to confim the telecon betxeen Mr. Burt Davis (Region I-AEC),
and J.G. Herbein (TMI-Station Superintendent) at 2000 hrs.12 Septecer 1974.
The following report is sub:ritted in accordance with paree aph 6.7.2.a (page
(-11) of the technical specifications.
On 11 Septer:ter while perfcrming Quarterly Surveillance Procedure 1303-5.1,
" Reactor Building Cooling and Isolation Syste::: Logic Channel and Co,.ponent Te3t," Reactor Building Spray Valve, BS-V1B failed to open as the result of a bics:n control fuse.
The failure occurred while testing the Engineered Safeguards two out of three, 4 psig, logic channels.
The duplicate (redundant) cocponent (BS-V1A) was tested and proved to be operable.
The investigation subsequently revealed a wiring error in the Engineered Safeguards Actuation logic output to BS-V1B. The wirir,g error connected the logic contacts of 65-VlB with a DC circuit. The wiring error was sub-sequently corrected a.,d BS4V1B was successfully tested.
Very truly yours,
/
J.G. Herbein Station Superintendent
'l,
THI Nuclear Station hen
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