ML19341D454

LER 81-007/03L-0:on 810127,diesel Generator 12U Oil Cooler Found Leaking Svc Water.Caused by Corroded Sacrificial Zinc Anode.Zinc Inspected & Replaced & Maint Insp of Zincs Increased from Monthly to Weekly

ML19341D454
Person / Time
Site:	Millstone
Issue date:	02/24/1981
From:	NORTHEAST NUCLEAR ENERGY CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19341D452	List: ML19341D451 ML19341D454
References
LER-81-007-03L, LER-81-7-3L, NUDOCS 8103050616
Download: ML19341D454 (1)

Text

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7 8 60 61 DOCKET NUhadER EVENT OFSCRIPTioN AN'? PROBABLE CONSEQUENCES h I

During normal operations, the 120 Diesel Gener_a_t_or_(OfE) oil conf or

[o12Jl was found leaking service water. The leak was stopped by . I gpl u

gq7) g isolating the service water to the 120 D/G. The plant was I I

n s l operat ad in accordance wi th T.S. A.S. 3.8.1. la_f.or 7_houts_and 1

pgI 55 minutes. No.similar events have occurred.

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F5Tal I 80 SUSCO E CGMPONENT CODE SUSCOdE Su OE DE CODE

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42 l43A l@ lF 44 l0 11 l Ol@47 34 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i o l A sacrificial zinc anode had corroded rpsultinn in the leakace. This I

, , , , , , zinc was replaced and the remaining zines were inspected and i

Planned maintenance inspection of the zincs

, , , replaced as necessary.

has been increased from monthly to weekly. This incident has been  ;

discussed with the applicable maintenance personnel. j 7 8 9 OTHE R STATUS IS O RY OISCOVERY DESCR:PTION 5A  % PCwER NA l [g.j@l Operator Observation ]

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