05000316/LER-1980-032-03, /03L-0:on 800904,while Returning East RHR Pump to Svc After Maint,Pump Became Unstable & Declared Inoperable. Caused by Air in Sys During Fill & Vent.Procedure Changed & Problem Eliminated

/03L-0:on 800904,while Returning East RHR Pump to Svc After Maint,Pump Became Unstable & Declared Inoperable. Caused by Air in Sys During Fill & Vent.Procedure Changed & Problem Eliminated

ML17331A469
Person / Time
Site:	Cook
Issue date:	10/03/1980
From:	Murphy C INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17331A467	List: 05000316/LER-1980-031-03, /03L-0:on 800902,bistable for Containment Pressure hi-hi Protection Set II Tripped at 3.1005 Psig,Exceeding Limiting Conditions for Operation.Caused by Instrument Drift.Bistable Adjusted & Returned to Svc 05000316/LER-1980-032-03, /03L-0:on 800904,while Returning East RHR Pump to Svc After Maint,Pump Became Unstable & Declared Inoperable. Caused by Air in Sys During Fill & Vent.Procedure Changed & Problem Eliminated ML17331A466
References
LER-80-032-03L, LER-80-32-3L, NUDOCS 8010090368
Download: ML17331A469 (4)

LER-1980-032, /03L-0:on 800904,while Returning East RHR Pump to Svc After Maint,Pump Became Unstable & Declared Inoperable. Caused by Air in Sys During Fill & Vent.Procedure Changed & Problem Eliminated

Event date:
Report date:
3161980032R03 - NRC Website

text

NRC FORM 366 P.77)

Ll CENSE E EVEN T R E PORT U. S. NUCLEAR REGULATORY COMMISSION (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 03 Q4~ Qs 25 26 LICENSE TYPE 30 57 CAT 58 9

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EVENT DATE 74 75 REPORT DATE 80 CONTROL BLOCK:

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LICENSEE CODE 14 15 LICENSE NUMBER CON'T soURGE ~LQB 0

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60 61 DOCKET NUMBER 68 69 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10

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PERFORMING A SURVEI A

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MAINTENANCE THE PUMP WAS UNSTABLE AND DECLARED INOPERABLE.

THE REDUNDANT RH

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THIS IS THE FIRST EVENT OF THIS TYPE.

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COMPONENT TAKEN ACTION 'N PLANT METHOD HOURS Q22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER

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THE RHR SYSTEM HAS BEEN DRAINED ANO REFILLED TWICE S I E

~14 CHANGED PROCEDURE RETURNED THE SYSTEM TO SERVICE WITH 0 DIFFI.ULTY.

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9 FACILITY STATUS 99 POWER OTHER STATUS Q I

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Q45 NA DISCOVERY DESCRIPTION Q32 OPERATOR OBSERVATION NA LOCATIONOF RELEASE Q goioopo34 g'RC USE ONLY 68 69 P)IONA,616-465-5901 X-1305 80 80 80 80 80 80 c4 ER 80 ~ TR 0a 49

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ATTACHMENT P1 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS:

NO FURTHER ACTION IS REQUIRED AS A RESULT OF THIS EVENT.

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