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Forwards LERs 82-059/03L-0,82-060/03L-0,82-061/03L-0 & 82-062/03L-0.Detailed event analysis submitted.

Accession Number: ML20071K747

Date Released: Wednesday, March 25, 2020

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• ML20071K744 - Forwards LERs 82-059/03L-0,82-060/03L-0,82-061/03L-0 & 82-062/03L-0.Detailed event analysis submitted. (2 page(s), 7/20/1982)
• ML20071K755 - LER 82-059/03L-0:on 820407,while in Mode 5,during check of high vibration in train A emergency chiller water pump, chiller found w/faulty control switch.Caused by switch out of calibr.Switch recalibr. (1 page(s), 7/20/1982)
• ML20071K767 - LER 82-060/03L-0:on 820416,while in Mode 5,emergency air cleanup sys train A became inoperable when emergency chiller tripped on low flow.Caused by erratic flow control switch. Switch replaced & sys returned to operable status. (1 page(s), 7/20/1982)
• ML20071K777 - LER 82-061/03L-0:on 820411,while in Mode 5 & operating train B of control room emergency air cleanup sys to allow maint on train A,train B became inoperable.Caused by faulty flow controller.Flow controller repaired. (1 page(s), 7/20/1982)
• ML20071K785 - LER 82-062/03L-0:on 820401,while in Mode 5 & operating train A of control room emergency air cleanup sys,vibration noted in chiller pump.Caused by pump bearing failure.Bearings replaced & pump declared operable within 10 days. (1 page(s), 7/20/1982)