ML20009H365

LER 81-043/03L-0:on 810709,during shutdown,175-ft Wind Direction Instrument Found Out of Calibr.Caused by Technician Using Wrong Ref Slot for Mounting Optical Orientation Device During Last Calibr

ML20009H365
Person / Time
Site:	Crystal River
Issue date:	07/29/1981
From:	Charles Brown FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009H363	List: ML20009H362 ML20009H365
References
LER-81-043-03L, LER-81-43-3L, NUDOCS 8108100018
Download: ML20009H365 (2)

Text

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LICENSEE EVENT REPORT (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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1 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o l 2 l l At 0045 during cold shutdown operation. the 175' wind direction innernent une dic- I

,g 3, l covered to be out of calibration. This created an event contrary to T.S. 3.3.3.4. l

[o;4ll Maintenance was initiated and operability was restored on 7/15/81. There was no I

g;3; geffect upon the health or safety of the general public. Redundancy is not applicable. l l 0 l6 l lThis is the fourteenth event reported under this Specification. I lo 171 l l I

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35 36 3/ 40 41 44 47 CAUSE DESCRIPTION AND CORRECTIVE nCTIONS liloll The cause of this event is attributed ta personnel error in that the instrument l 9,,,yg technician used the wrong reference slot for maunting the optical orientation  ;

device on date of last calibration, resulting in improper calibration. A new

, g base plate for the mounting of the optical orientation device will be obtained to l li l4 i l prevent recurrence of this event. l 80 7 8 9 ST S  % POWER OTHER STATUS ISCO RY DISCOVERY DESCRIPT#ON Ii i s I [fd@ l 01 01 Ol@l ' "

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Report No.: 50-302/81-043/03L-0 Facility: Crystal River Unit:3 Report Date: July 29,1981 Occurrence Date: July 9, 1981 Identification of Occurrence:

175' wind direction instrument was inoperable contrary to Technical Specification 3.3.3.4.

Conditions Prior to Occurrence:

Mode 5 cold shutdown (0%)

Description of Occurrence:

At 0045 during cold shutdown operation;the 175' wind direction instrument was discovered to be out of calibration.

i Maintenance was initiated and operability was restored on July 15, 1981.

. Designation of Apparent Cause:

The cause offthis event is attributed to personnel error.

The instrument technician used the wrong reference slot for.

the mountine-of the optical orientation' device.

1 Analysis of Occurrence:

There was no effect up>n the health or safety of the general public.

. Corrective Action:

Calibration-of 175' wind direction instrument using proper.

slot for mounting of the optical orientation device and a new base plate for mounting-of the optical orientation device will be obtained.

! Failure Data:

This is the fourteenth event reported under Technical Specification 3.3.3.4.

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