05000325/LER-1979-085-03, /03L-0:on 791015,core Spray/Rhr Pump Running Annunciator Would Not Reset.Caused by Accumulated Condensate in Switch Resulting in Sticking of Reset Spring Cylinder. Spring Replaced & Conduit Refitted for Tighter End Seal

/03L-0:on 791015,core Spray/Rhr Pump Running Annunciator Would Not Reset.Caused by Accumulated Condensate in Switch Resulting in Sticking of Reset Spring Cylinder. Spring Replaced & Conduit Refitted for Tighter End Seal

ML19210C493
Person / Time
Site:	Brunswick
Issue date:	11/07/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19210C492	List: 05000325/LER-1979-085, Forwards LER 79-085/03L-0 05000325/LER-1979-085-03, /03L-0:on 791015,core Spray/Rhr Pump Running Annunciator Would Not Reset.Caused by Accumulated Condensate in Switch Resulting in Sticking of Reset Spring Cylinder. Spring Replaced & Conduit Refitted for Tighter End Seal
References
LER-79-085-03L-01, LER-79-85-3L-1, NUDOCS 7911140345
Download: ML19210C493 (1)

LER-1979-085, /03L-0:on 791015,core Spray/Rhr Pump Running Annunciator Would Not Reset.Caused by Accumulated Condensate in Switch Resulting in Sticking of Reset Spring Cylinder. Spring Replaced & Conduit Refitted for Tighter End Seal

Event date:
Report date:
3251979085R03 - NRC Website

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LICENSEE EVENT REPORT CONTROL BLOCK:

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60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 lDuring normal operation. the operator noticed that the " Core Sprav/RRR Pump Running" l

gy l annunciator would not reset following a periodic test on the RHR pumps.

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l Technical Specifications 3.3.3, 6.9.1.9b j

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36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l Condensate in the conduit had accumulated in the switch causing a sticking of the re-l i

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set spring cylinder. The switch was replaced, calibrated and returned to service.

l l The conduit was refitted with a new end fitting for a tighter end seal. This is i

2 considered an isolated event.

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8 9 11 12 80 LOSS OF OR OAMAGE TO FACILITY TYPE

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NAME OF PREPARER PHONE:

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