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Forwards LERs 82-027/03L-0,82-028/03L-0,82-029/03L-0, 82-030/03L-0,82-031/03L-0 & 82-032/03L-0.Detailed event analysis submitted.

Accession Number: ML20058E019

Date Released: Thursday, March 12, 2020

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• ML20058E016 - Forwards LERs 82-027/03L-0,82-028/03L-0,82-029/03L-0, 82-030/03L-0,82-031/03L-0 & 82-032/03L-0.Detailed event analysis submitted. (3 page(s), 7/9/1982)
• ML20058E054 - LER 82-027/03L-0:on 820611,vent valve S21305MR807 broke off in auxiliary feedwater sys,creating 1-inch diameter leakage. Caused by fatigue failure of weld between valve & piping. Valve & portion of piping replaced. (1 page(s), 7/9/1982)
• ML20058E080 - LER 82-028/03L-0:on 820612,switch on discharge valve 2HV4731 found inoperable,rendering motor driven auxiliary pump 2P-141 inoperable.Caused by binding valve.Valves stroked. (1 page(s), 7/9/1982)
• ML20058E099 - LER 82-029/03L-0:on 820612,switch on discharge valve 2HV4714 found inoperable,rendering motor driven auxiliary pump 2P-504 inoperable.Caused by binding valve.Valves stroked. (1 page(s), 7/9/1982)
• ML20058E108 - LER 82-030/03L-0:on 820612,electrohydraulic valve 2HV4714 failed to open,rendering motor driven auxiliary pump 2P-504 inoperable.Cause not determined.Valve disassembled & rebuilt. (1 page(s), 7/9/1982)
• ML20058E118 - LER 82-031/03L-0:on 820616,discovered oil leakage from bearings of auxiliary feedwater drive pump 2P-504.Caused by bearing failure.Leakage repaired. (1 page(s), 7/9/1982)
• ML20058E128 - LER 82-032/03L-0:on 820617,vent valve S21305MR807 broke off, creating 1-inch diameter leakage.Caused by fatigue failure due to hydraulic instability.Valve & portion of piping replaced. (1 page(s), 7/9/1982)