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Forwards LERs 86-001-00,86-003-00,86-004-00 & 86-005-00.

Accession Number: ML20197A548

Date Released: Wednesday, July 29, 2020

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• ML20197A544 - Forwards LERs 86-001-00,86-003-00,86-004-00 & 86-005-00. (2 page(s), 10/23/1986)
• ML20197A562 - LER 86-001-00:on 860930,RWCU Pump Room 3 temp high annunciator alarmed in main control room.Probably caused by grounds in temp module coincident w/thermocouple grounds. Ground corrected. (3 page(s), 10/23/1986)
• ML20197A587 - LER 86-003-00:on 860930,control room ventilation sys Train B shifted to high chlorine mode of operation.Caused by broken detector tape in chlorine detector due to excess spring tension causing excessive drag on tape.Tape rethreaded. (3 page(s), 10/23/1986)
• ML20197A706 - LER 86-004-00:on 861001,automatic initiation of standby gas treatment sys occurred following containment fuel transfer vent plenum high radiation signal.Caused by personnel error & faulty procedures. (3 page(s), 10/23/1986)
• ML20197A754 - LER 86-005-00:on 861007,firewatch rounds for impaired barriers started late.Caused by personnel negligence. Contract employee suspended & subsequently resigned. (3 page(s), 10/23/1986)