ML19257A900

LER 79-063/03L-0:on 791204,flow Path from Bat a Was Inoperable Due to Outlet Valve Being Closed.Caused by Operator Error & Procedural Deficiencies.Valve Opened & Sys Returned to Operation

ML19257A900
Person / Time
Site:	Farley
Issue date:	01/04/1980
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19257A894	List: ML19257A893 ML19257A900
References
LER-79-063-03L, LER-79-63-3L, NUDOCS 8001090365
Download: ML19257A900 (1)

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EVENT DESCRIPTION AND PAOnABLE CONSEQUENCES h M l At- 1400 on 12-4-79. the flow each frort BAT A was declared inoperable due to its outlet l

['o~LG I valve being closed.

, BAT B was in the recirculation mode at the time of the incident. l lo1411 Tech. Spec. 3.1.2.2, in part, requires the flow path from either BAT to the RCS via l o t. l a transfer pump and charging pump to be operable. Upon discovery, (whila performing l

__.l o lc I I double valve verification), the valve was ooened and the system returned to operation. l 0 7 I A similar occurrence was reported in LER 79-059/03L-0. The he~alth and safety of the l 0 a l public were not affected by this event. l 7 sS 83 S YSTE!.t CAL'5E CAU:;E C O'A P. VAlvF CODE CCDE SUSCODE CoVPONENTCODE SUSCODE SUSCODE lolei 7 8

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41 42 Nl@ l43Al@ 44 Gl 2l 5l 5l{ 47 CAUSE CESCeUPTION AND COR9ECT VE ACTIONS h ijo i This incident is attributable to operator error and procedural deficiencies. As a l l i i i ! I result of A and B BAT valve manipulations that were made in order to perform chectical ;

, ., l analysis (Boron Concentration), the A BAT outlet valve was erroneousl/ lef t closed. [

] l :. l l Procedure changes, which enhance the clarity, will be completed by 1-4-80. Also, i .; l information and retraining regarding these changes will be provided to Operations l 7 8 9 personnel in order to prevent rec rence of this type of event. g F ACILITV ME DIOD 04 51A1U3  % POWE ft ~OTHE ft STATUS CliCoVf f 8V DISCoVEnY DESCRIPTION 32 i l A l@l Operator Observation lE l@ l 0l 6l 5l@l" NA l

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