05000317/LER-1979-017-03, /03L-1:on 790515,during Performance of Overspeed Testing,Diesel Generator 12 Auxiliary Blower Failed.Returned to Svc 790523.Cause of Failure Due to Thermal Growth & Subsequent Contact Between Lobes & Power Housing

/03L-1:on 790515,during Performance of Overspeed Testing,Diesel Generator 12 Auxiliary Blower Failed.Returned to Svc 790523.Cause of Failure Due to Thermal Growth & Subsequent Contact Between Lobes & Power Housing

ML19345E162
Person / Time
Site:	Calvert Cliffs
Issue date:	06/21/1979
From:	Lagiewski J, Umsted J BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19345E160	List:
References
LER-79-017-03L, LER-79-17-3L, NUDOCS 8012230366
Download: ML19345E162 (1)

LER-1979-017, /03L-1:on 790515,during Performance of Overspeed Testing,Diesel Generator 12 Auxiliary Blower Failed.Returned to Svc 790523.Cause of Failure Due to Thermal Growth & Subsequent Contact Between Lobes & Power Housing

Event date:
Report date:
3171979017R03 - NRC Website

text

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EVENT DESCRIPTION AND PRC8ASLE CONSEQUENCES h t o 121 l During cerformance of oversoeed testina 12 diesel cenerator auxiliary I

ioi3; I blower failed at 0930. Ofesel generators 11 and 21 were tested and i

10 4l l assicned to U-2 which was ooeratino at 100". cower. At 2330 on 5-16-79 l

lo isi l 11 diesel cenerator was reassigned to U-l to facilitate fuel movement.

l 1o is i i Ucon comoletion of core alteration 11 diesel generator was again as-l l o 171 i signed to U-2 at 0821 on 5-17-70.

12 diesel generator was returned to l

io !s i i service at 1430 on 5-23-79. This is not a recetitive occurrence.

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