ML19317G292

LER 78-022/03L-0:on 780405,incorrect Battery Cells Monitored for Weekly Battery Surveillance Test.Caused by Personnel Error.Personnel re-instructed in Use & Adherence to Proper Written Procedures

ML19317G292
Person / Time
Site:	Crystal River
Issue date:	04/28/1978
From:	Cooper J FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19317G285	List: ML19317G284 ML19317G292
References
LER-78-022-03L, LER-78-22-3L, NUDOCS 8002280909
Download: ML19317G292 (2)

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(SEE ATTAC11ED SUPPLE."I';TARY I'iFOPdATION S11EET)

SUPPL Ns_ARY INFORMATION c

b\ Report No.: 50-302/78-022/03L-0 V

2. Facility: Crystal River Unit #3 ,

3. Report Date: 28 April 1973 4 Occurrence Date: 5 April 1978

5. Identification of Occurrence:

Failure to monitor correct pilot cell of batteries at Units 1 and 2.

6. Conditions Prior to Occurrence:

Mode 6 refueling.'

7. Description of Occurrence:

At 0900 on 4/10/78, while reviewing SP-510 (Weekly Battery Check)(Units 1&2) foy the week of 4/5/78, it was noted that the bactery cells monitored for complianet with Standard Tech Specs 4.8.1.2 and 4.8.1.1.1.C.la through b were not the correct pilot cells as defined by Paragraph 6.0 of SP-510.' The Quarterly Battery Surveillance performed on 4/3/78 determined that cells 1-52 and 2-50 should be used as the test (pilot) cells during weekly battery surveillance.

s Cells 1-51 and 2-34 were incorrectly used as pilot cells.

. Designation of Apparent Cause: . .. .

Failure of personnel to follow procedures.

9. Analysis of Occurrence:

There was no impact on plant or public safety, in that the plant was defueled and the correct pilot cells were demonstrated operable.1:nmediately upon discovet

10. Corrective Action:

The Compliance Section of Unit #3 discussed the problem with the Electrical and Controls Engineer at Units 1 & 2. The electricians at Units 1 & 2 were instructee further, by their supervisor, in the use of SP-510 and SP-511.

11. Failure Data:

Missed surveillance procedures have been a recurring problem; however, this is the second occurrence of an event of this nature.

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