ML19257D485

LER 79-067/03L-0:on 791222,river Water Train Pumps Declared Inoperable Due to Faulty Level Switch Q5P25L5510. Caused by Moisture Entering Switch,Making Operation Erratic. Replaced Switch.Corrective Action Being Evaluated

ML19257D485
Person / Time
Site:	Farley
Issue date:	01/25/1980
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19257D482	List: ML19257D481 ML19257D485
References
LER-79-067-03L, LER-79-67-3L, NUDOCS 8002040469
Download: ML19257D485 (1)

Text

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EVENT OATE 74 35 REPOR T O ATE 60 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h F6Ti'l i At 0850 on 12-22-79, the River Water B train pumps were declared inoperable due to a [

o 3 l f aulty level switch (Q5P25L5510) . Tech. Spec. 3.7.5 requires both R.W. loops to be g o , l operable. Tech Spec. 3.7.5 action statement requirements were met. The pumps were g pg p;;-) l returned to service at 1942 on 12-22 79. A similar occurence was reported in LER 79- g

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a 3 g041/03L-0. The health / safety of the public were not affected. ,

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• l 7 s9 80 SYSTE M CAUSE CAUSE COMP. VALVE CCOE CODE SUSCODE COMPONENT CODE SU8 CODE SUSCOct O 9 8

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, SE QU E NTI A t. OCCURAENCE REPORT REVislON LER'RO EVENT YE AR REPOR T NO. COOE TYPE N O.

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42 43 44 47 CAUSE DESCRIPTION AND CCRRECTIVE ACTIONS gg l Moisture had entered the switch thereby making its operation erratic ie. R.W. pumps y fiTi 1 1 4 and 5 would spuriously trip. The switch was replaced. Corrective action to prevent ;

, , l moisture entry into the switch is being evaluated. A revision to this LER will be ,

, 3 l submitted. g L'_.L*.J l I r a9 so STA  % POWE R oTH E R STATUS IS V RY DISCOVERY OESCRIPTION y J @ l1l0l0l@l NA l W @ [ R.W.

pumps in tripped condit n l

A TiVITY CO TENT RELEASED Os aELE ASE AMoVNTOR ACTivlTY LOCATION CF RELE ASE

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PEF 4SONNEL EXPO 5URES NUMefR TYPE DESCRIPTION N

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' PERSONNEL INJURIES NUMBER OESCRIPTION I

i a 8 9 1010101@l 11 12 NA 1866 142 I 80 LOSS TYPE OF CR CAMAGE TO FACILITY Q C E SCRIP TION v LLLj LU@l "^ l 7 8 9 to 60 PunticiTY DESCRIPTION ,

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l [llllllllllll-a e o to es es so e W. C. Hairston III "

, PHONE.

(205) 899-5156