ML19320A994

LER 80-013/03L-0:on 800516,during Surveillance Procedure on Primary Containment Isolation Valve Timing,Rhr Discharge to Radwaste Inboard Isolation Failed to Close in Time.Caused by Failure to Check Stroke Time After Maint

ML19320A994
Person / Time
Site:	Cooper
Issue date:	06/13/1980
From:	Doan P NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19320A992	List: ML19320A991 ML19320A994
References
LER-80-013-03L, LER-80-13-3L, NUDOCS 8007090007
Download: ML19320A994 (1)

Text

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, knc CORII366 U. S. NUCLE AR REGULATORY COMMISSION (7-771 LICENSEE EVENT REPORT p

(PLEASE PRINT OR TYPE ALL REQUIRE'D INFORMATICIN)

CONTROL BLOCK: l

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68 69 EVENT DATE 74 75 REPORT D ATE 80

1. 8 60 St DOCKET NUMBER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h f'O'TTl IDuring performance of surveillance procedure 6.3.10.7. Primary Containment Isolation]

[ O 1 a l IValve Timing, RHR-MO-57, the RHR discharge to radwaste inboard isolation, failed to l I o i4 I Iclose in the time required by Tech. Specs. The redundant isolation valve met the l IoI8Iltime limit placed on it. This event oresented no adverse conseaviances from cha l

[ o is l l standpoint of public health and safety. I AI I I

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43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

lil0][ Principle action was to adjust stem travel so that valve met limits. Review of valve l gthistory showed limits adjusted February 7, 1980 which accounted for increased stroket g [ time. Stroke time was not checked after maintenance which resulted in the valve ex- l m lceeding time limits during next scheduled test. Personnel were reinstructed to i m Iverify stroke time af ter maintenance of T.S. related valves. I F 8 9 80 SA s ". POWER OTHER STATUS OSO RY DISCOVERY DESCRIPTION IiI5I (,gj @ l 01 01 01@ l NA l [3J@l Operator Observation l ACTIVITY CO TENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELEASE l1 l6l NA

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7 8 9 10 11 PERSONNEL FXPOSURES NUVBER TYPE DESCRIPTION NA j l i I 71 l 0 l 0 l 0 l@l Z l@l 80 PE RSONNE L INJURIES NuesE R oESCRiPfiON@

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Pq nit st.g g y NRC USE ONL Y twi E n ut M.s tie r EON l llllllllllll1 n 68 69 80 5 NAME OF PREPARER Paul F. Doan PHONE:

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