05000298/LER-1981-002-03, /03L-0:on 810213,brass Filings Found in Oil Sump of Outboard Motor Bearing of RHR Svc Water Booster Pump. Caused by Loose Inboard Motor Fan & Set Screw.Fan Repaired & Second Set Screw Added

/03L-0:on 810213,brass Filings Found in Oil Sump of Outboard Motor Bearing of RHR Svc Water Booster Pump. Caused by Loose Inboard Motor Fan & Set Screw.Fan Repaired & Second Set Screw Added

ML20008F719
Person / Time
Site:	Cooper
Issue date:	03/13/1981
From:	Doan P NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20008F717	List: 05000298/LER-1981-002, Forwards LER 81-002/03L-0.Detailed Event Analysis Encl 05000298/LER-1981-002-03, /03L-0:on 810213,brass Filings Found in Oil Sump of Outboard Motor Bearing of RHR Svc Water Booster Pump. Caused by Loose Inboard Motor Fan & Set Screw.Fan Repaired & Second Set Screw Added
References
LER-81-002-03L, LER-81-2-3L, NUDOCS 8104210535
Download: ML20008F719 (1)

LER-1981-002, /03L-0:on 810213,brass Filings Found in Oil Sump of Outboard Motor Bearing of RHR Svc Water Booster Pump. Caused by Loose Inboard Motor Fan & Set Screw.Fan Repaired & Second Set Screw Added

Event date:
Report date:
2981981002R03 - NRC Website

text

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OOCK ET NUYSER tA 69 EVENT DATE 74 75 REPORT OATE 80 EVENT DESCRIPTION AND PROB A8LE CONSEQUENCES h 10121 [During routine preventative maintenance of the RHR Service Water Booster Pumps, l

g o l a i l brass filings were found in_t.e oil sump of the outboard motor bearing. This is a l

h l o 14 I Irepeat occurrence on the same motor from 1974. however, that occurrence was not re-I l o I s l loorted at that time. The redundant loop was operable as well as both diesel Rener-l 10 is I bra. Thovo... v, m na1rovea ns f o,- e e en che n,ih 1 4,- hanleh anA cafne - (RTA 1. 5_ n _11 I lo lil i I

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lil,] Ifan loose en the shaft producing the filings. The loose fan replaced in 1974 by thel 1,i,iJmanufacturer appeared to have inadequate shrink fit and the set screw was loose.

l W lFan was repaired and a second set screw added. Rotor was balanced, reinstalled, andl I i l 4 I l-totor nroven onernble. The other noter sum s were inspected and no filings found.

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