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Forwards LERs 86-076-01,87-003-01 & 87-014-00.

Accession Number: ML20206A747

Date Released: Friday, August 7, 2020

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• ML20206A745 - Forwards LERs 86-076-01,87-003-01 & 87-014-00. (1 page(s), 4/3/1987)
• ML20206A764 - LER 86-076-01:on 861103,pressure in secondary containment annulus found over 0.04 inches vacuum water gauge.Caused by operations & security personnel miscommunicating & opening door to secondary containment annulus.Procedure revised. (3 page(s), 4/3/1987)
• ML20206A798 - LER 87-003-01:on 870110,22 & 0217,failure of inboard containment isolation steam supply valve for RCIC caused RCIC inoperability.Cause unknown.Operator & motor replaced & motor operated valve tested. (5 page(s), 4/3/1987)
• ML20206A818 - LER 87-014-00:on 870305,pressure transient in reactor vessel level instrument rack initiated HPCS.Caused by use of incorrect valving sequence when restoring level transmitter to svc.Instrument rack tasks rescheduled. (3 page(s), 3/5/1987)