ML19331E012

Updated LER 80-008/03X-1:on 800312,during Scheduled Insp of Reactor Core Isolation Cooling Turbine,Two Damaged Buckets on Wheel Were Discovered.Caused by Nonimpact Type Impingement of Foreign Object on Wheel

ML19331E012
Person / Time
Site:	Cooper
Issue date:	08/20/1980
From:	Flannigan R NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19331E010	List: ML19331E009 ML19331E012
References
LER-80-008-03X, LER-80-8-3X, NUDOCS 8009050190
Download: ML19331E012 (1)

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60 61 DOCK E T NUVM E M 68 69 EVENT DATE 74 7S REPORT DATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h I o i 2 I puring a scheduled inspection of the RCIC turoine, it was discovered that two buc- l iO i3i Kets on the turbine wheel were damaged. This could have resulted in operation in a l io i4 ; pegraded mode as permitted by Tech. Spec. Section 3.5.D. The reactor was in cold l lnisi phutdown condition at the time of the occurreitee and RCIC was not required to be op-l loisi prable by the Tech. Specs. The RCIC system had met the Tech. Spec. surveillance re- I 1017 I huirements at the time the reactor was shutdown and was considered operable. There i 101a1 yere no adverse affects to the public health and safety. _

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42 l@ IN 43 l@ l44T I 114 l 7l@ 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h IiIolIInvestigation indicates the RCIC turbine wheel was damaged by non-impact type im- 1 i i loinnement of a foreign obiect on the wheel. The obiect could not be located. The I l

1 i 1 I [rerry wheel (Terry Turbine Part No. 77595A-24) was replaced. No further action is ]

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