ML19338F499

LER 80-071/03L-0:on 800914,A Train of Standby Gas Treatment Sys Declared Inoperable as Main Stack Radiation Levels Had Increased.Caused by Sys Trip.Belts & Bearings Replaced,Fan Lubricated & Returned to Svc

ML19338F499
Person / Time
Site:	Pilgrim
Issue date:	10/14/1980
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19338F497	List: ML19338F496 ML19338F499
References
LER-80-071-03L, LER-80-71-3L, NUDOCS 8010200431
Download: ML19338F499 (1)

Text

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sou i 8 60 EVENT DESCRIPTICN AND PROBAdLE CONSECUENCES h

10 ( 2 l l On September 14, 1980 at approximately 0815 hours0.00943 days <br />0.226 hours <br />0.00135 weeks <br />3.101075e-4 months <br /> the 'A' train of the SBGT System l g

was declared inoperable.  ;

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,g,,, g Operating personnel while investigating the cause of an observed increase in main  ;

,,,,jg stack radiation level discovered that the ' A' train of the SBGT System had tripped. y gg The 'B' train of the SBGT System wac immediately tested as required by Technical Speci7

. gg g fication Section 3.7.B.1.c. Following naintenance the SBGT System ' A' train was suc g cessfully tested and returned to service at appro:-imately 1655 hrs. on Sept. 17, 1980.;

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35 37 40 41 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS li l0 l l Maintenance replaced belts and bearings on the 'A' fan, lubricated the fan and i gl ' returned it to service. I I

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