ML19350E682

LER 80-209/03L-0:on 800922,no post-maint Testing Performed After Maint on RHR Heat Exchanger Discharge Isolation Valve. Caused by Personnel Error.List Issued Listing All Valves Which Require pre- or post-maint Testing

ML19350E682
Person / Time
Site:	Sequoyah
Issue date:	06/18/1981
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19350E679	List: ML19350E678 ML19350E682
References
LER-80-209-03L, LER-80-209-3L, NUDOCS 8106230434
Download: ML19350E682 (2)

Text

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LICENSEE EVENT REPORT .- -

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lh e CONTROL BLOCK: l -I l l l l (PLEASE PRINT'dR'TTPE ALL RENULRED I.N'FO'RMATION)

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    ".            ' EVENT OESCRIPTION ANO PROB ABLE CONSECUENCES h                                                                          .

i 1012 l l A continuine review of maintenance'recuests MR's) on 5/22/81 discovered that with 10#2i 1 Unit 1 in Mode 5 on 9/22/80, maintenance was performed on 1-FCV-70-156. residual he~at I iTTTl I remo+al heat exchariner discharge isolation valve. to adiust the limit ' switch and no I I o I 5 I I post-maintenance testine was cerformed as recuired by Surveillance Recuiree ent -4.0.5 I

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ITTTI 1 which invokes ASME Section XI. ihere was no effect'upon public health or safelv. I 10171 'l Previous occurrences - six (reference SORO-50-327 /80190. '80200, 81048, and 80208) . I I lo la l l SYST E M COOE - CAUSE COOF' CAUSE SUSCCOE COM*0NENT CODE . Cou p. SUSCODE vAtyg SueCOOE .

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• I i l 0 l l PerMor.nel ' involve'd did not consider the maintenance nerformed to aff ect the ne fnrm te P

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I i l i l I cif the valve and did not perfdirm the re6uired t'est as allowed by nrocedures. A I

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Iii?I I technical instruction is beine issue 1 which orovides a list of n11 valves which require I*I3I I pre- and'nost-maintenance testine and examples.of tvoes of maintenance which require  ! I1 i*I I__cesting_ o u 9 80 sr SIN asPOwtR 01HEnsTATus $ts 't OtSCOVEnY DESCRIPTION I815I[gj@ l0l0l0l@l ' NA l lCl@l Review of MR's # I

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RELF dEO OF nELE AM AMOUNT OF ACTivlTY LOCATION OF RELEASE NA  ! llIGl!8 97.1 @ lZl@l 7 to 11 NA 44 l l 45 60 PEnSONNEL EXPOSURES NUMSE R a TYPE DESCRIPTION li lil '1010 l 01@l z l@l NA PEmO~~ E t ,,uu'J,E s - NUM8ER DESCRIPTION ITTil8 I9Oi 0 l 01@l12 I  :: NA 80 LOS$ OF OR DauAGE TO FACILITY TvrE IhIfI &

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LER SUPPLEMENTAL INFORMATION SQRO-50-327/80209 Technical Specification Involved: 4.0.5 Reported 'Jnder Technical Specification: 6.9.1.13.c Date of Occurrence: 9/22/80 Time of Occurrence: 0400 CDT Identification and Description of Occurrence: A continuing review of maintenance requests (KR's) on 5/22/81 discovered that on 9/22/80, maintenance was performed on 1-FCV-70-156. Conditions Prior to Occurrence: Unit 1 in Mode 5 with RCS temperature and pressure at 180 F and 310 psig Apparent Cause of Occurrence: Personnel involved did not consider the maintenance per ormed to affect the

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performance of the valve and did not perform the required test. Analysis of Occurrence:' The corrective actions being taken will prevent future occurrences of failure to perform post-maintenance testing. The continuing review of MR's will continue

                  ,to discover events of this type which have occurred in the past. These events will be reported as applicable, but this corrective action should prevent future occurrences.

Corrective Action: Employees have been reinstructed on pre- and post-maintenance testing. A technical instruction is being issued which provides a list of all valves which require pre- and post-maintenance testing along with types of maintenance which require testing. Failure Data: None l l

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