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Forwards LERs 88-016-00,88-017-00,88-018-00 & 87-073-01.
Accession Number: ML20155C938
Date Released: Wednesday, June 17, 2020
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- ML20155C935 - Forwards LERs 88-016-00,88-017-00,88-018-00 & 87-073-01. (1 page(s), 6/3/1988)
- ML20155C944 - LER 88-016-00:on 880504,unexpected RWCU containment isolation occurred due to pump room high differential temp. Caused by personnel error.Caution added to repetitive task for calibr of time delay for fan A trip relay. (3 page(s), 6/3/1988)
- ML20155C959 - LER 88-017-00:on 880506,unexpected scram of Group 3 control rods caused reactor vessel level to decrease to low level 3 resulting in full scram.Caused by blown fuse.Fuse replaced. (3 page(s), 6/3/1988)
- ML20155C974 - LER 88-018-00:on 880505,investigation determined that elevation changes performed in Apr 1987 failed to result in corrections to test instructions of instrument recalibrs. Caused by personnel error.Surveillance instruction revised. (3 page(s), 6/3/1988)
- ML20155C983 - LER 87-073-01:on 871029,three MSIVs failed to fast close in time required by Tech Specs 3.4.7 & 3.6.4.Caused by sticking of valves in fast closure dual solenoid air pilot. Discs & seals for valves replaced. (4 page(s), 6/3/1988)