ML19210C493

LER 79-085/03L-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

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: ML19210C491 ML19210C493
References
LER-79-085-03L-01, LER-79-85-3L-1, NUDOCS 7911140345
Download: ML19210C493 (1)

Text

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

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DOCKET NUMBER 69 l i l 0 l 1 l 5 l 7 l 9 @1 l 1 1 l 0l 7 7l809 g EVENT DATE 74 75 REPORT DATE 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.

o 4 l Technical Specifications 3.3.3, 6.9.1.9b j o s l l 0 6 l l 0 7 l l 0 8 l l 80 7 8 9 0 ODE S SC E COMPON ENT CODE SU8 Code SU E 7

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, SEQUENTIAL OCCURRENCE REPORT REVISION LER/RO EVENT YEAR REPORT NO. CODE TYPE NO.

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l217 22l9 l 23 24 26 27 28 29 30 31 32 N AC O O NT M HOURS 22 S8 i FOR 8. SUP 1 MANUF C l33A lgl34Z l g l5Z 3

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36 37 0 0 0l 40 lN g 41 Y lg l Nlg 43 44 B 0 lIRER9lg 47 42 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i o l Condensate in the conduit had accumulated in the switch causing a sticking of the re- l g set spring cylinder. The switch was replaced, calibrated and returned to service. l i 2 l The conduit was refitted with a new end fitting for a tighter end seal. This is  ;

i 3 considered an isolated event. l ITTT11 7 8 9 80 STA  % POWER OTHER 3TATUS IS O RY DISCOVERY DESCRIPTION y l El@ 0l9 9 l@l NA l l A l@l Operator Surveillance l A TlVITY CO TENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE NA lNA 7

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@ 10 @ 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 1 7 l0l0l0l@lZl@lNA l PERSONNEL INJURIES NUMBER DESCRIPTION 7

i a 8 9 l0l0l0l@lNA 11 12 80 LOSS OF OR OAMAGE TO FACILITY TYPE DESCRIPTION 1 9 l Zl@lNA NRC usE ONLY ISSUE DESCRiPTiOsh g91114 h Q7 8 9 hlNA 10 l

68 69 lllllll1lllll2 80 g A. C. To111 son, Jr. 919-457-9521 o NAME OF PREPARER PHONE: o