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Forwards LER#78-071/03L-0,#78-072/03L-0,78-064/03X-1 & #78-066/03X-1.

Accession Number: ML20064D802

Date Released: Wednesday, March 18, 2020

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• ML20064D798 - Forwards LER#78-071/03L-0,#78-072/03L-0,78-064/03X-1 & #78-066/03X-1. (1 page(s), 11/2/1978)
• ML20064D805 - LER#78-064/03X-1 on 780909:during surveillance test FNP-1- STP-22.0,the Turbine Driven Auxiliary Feedwater Pump failed to start when trip/throttle valve tripped shut & control was lost on valves 3228A,B,C,due to failed TDAFPcircuit relay. (3 page(s), 11/2/1978)
• ML20064D809 - LER#78-066/03X-1 on 780914:inspec of diesel generator bldg noted lB D/G air start sys air reservoir 1A,1B pressures were 210 PSIG & 80 PSIG,due to 1B air compressor relief valve/check valve leakage. (3 page(s), 11/2/1978)
• ML20064D817 - LER#78-071/03L-0 on 781003:train A river water pumps found in tripped condition & could not be started from Control Room,caused by low level reed switch failure in Pond Level Switch LS511. (1 page(s), 11/2/1978)
• ML20064D824 - LER#78-072/03L-0 on 781003:during FNP-1-STP-40.3,the 1C diesel generator output breaker failed to close on 4160V bus 1H after D/G auto-started,due to incorrect landing of jumper installed for Unit 1/Unit 2 separation. (3 page(s), 11/2/1978)