05000302/LER-1981-034-03, /03L-0:on 810617,during Hot Shutdown Operation, Lightning Strike Rendered All Meteorological Instrumentation Inoperable.Full Operability Restored on 810624

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/03L-0:on 810617,during Hot Shutdown Operation, Lightning Strike Rendered All Meteorological Instrumentation Inoperable.Full Operability Restored on 810624
ML20009E706
Person / Time
Site: Crystal River 
Issue date: 07/14/1981
From: Hernandez V
FLORIDA POWER CORP.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009E700 List:
References
LER-81-034-03L, LER-81-34-3L, NUDOCS 8107280376
Download: ML20009E706 (1)


LER-1981-034, /03L-0:on 810617,during Hot Shutdown Operation, Lightning Strike Rendered All Meteorological Instrumentation Inoperable.Full Operability Restored on 810624
Event date:
Report date:
3021981034R03 - NRC Website

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At 1536 during_ hot shut _down oparacion a lightning strike rendered,11 metenrninefen1

.y instrumentation inoperable.

This created an event contrary to T.S 3.3.3.4.

Mainten-

- 7. ance was initiated.

Operability was restored at 1730 to all but the 175' windspeed

. instrument.

Full operability was restored at 1130 6/24/81.

There was no effect upon tne health or safety of the general public.

This was the first lightning induced los_s_

3 of all meterological instrumentation and this is the thirteenth event reported under

,this Specification.

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iii:,l_The cause of this event is attributed to lightning strikine the meteorological instru-j t.,,i rmentation. All affected instrumentation was repaired or replaced and the functional

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An engineering investigation will be conducted to evaluate thet

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