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Forwards LERs 79-050/03L-0,79-051/03L-0,79-052/03L-0 & 79-054/01T-0.
Accession Number: ML19262A938
Date Released: Thursday, October 3, 2019
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- ML19262A937 - Forwards LERs 79-050/03L-0,79-051/03L-0,79-052/03L-0 & 79-054/01T-0. (1 page(s), 12/3/1979)
- ML19262A939 - LER 79-050/03L-0:on 791107,trip bistables for pressurizer pressure transmitter PT455 not tripped before pressurizer level transmitter 459 root valves closed.Caused by personnel error.Matter to be discussed w/operations personnel. (3 page(s), 12/3/1979)
- ML19262A940 - LER 79-051/03L-0:on 791103,during surveillance test on turbine driven auxiliary feedwater pump,pump tripped on overspeed.Caused by misadjustment of manual speed due to leak of position markings.Manual control adjusted. (2 page(s), 12/3/1979)
- ML19262A941 - LER 79-052/03L-0:on 791106,refueling water storage tank declared inoperable when water vol fell below Tech Specs. Caused by drift problems on level transmitters.Transmitters undergoing repairs. (1 page(s), 12/3/1979)
- ML19262A942 - LER 79-054/01T-0:on 791119,notified by Westinghouse that possibility exists that current negative rate trip setpoints may not provide reactor trip during single or multiple rod drop events.Caused by designer calculation errors. (1 page(s), 12/3/1979)