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Partial response to FOIA request re LERs.App C documents available in PDR.App D documents encl & available in PDR.App E documents partially withheld (ref FOIA Exemption 4).Listed LERs not issued bu licensees.

Accession Number: ML20238F760

Date Released: Monday, September 14, 2020

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• ML20238F798 - LER 86-017-00:on 860821,containment smoke detector sys 1A-22 declared inoperable due to spurious alarm which would not clear.Caused by faulty smoke detector.Further investigation & repair will be performed during next outage.W/860925 ltr. (2 page(s), 9/25/1987)
• ML20238F824 - Partially withheld LER 86-052-01:on 860926,security data mgt sys computer terminals became inoperable (ref 10CFR73.21). Caused by overload of alarms & sys instability.Sys restored by placing sys multiplexers online. (3 page(s), 11/13/1986)
• ML20238F808 - LER 86-038-00:on 861209,reactor scram occurred due to low condenser vacuum.Caused by personnel error.Discussions w/operating personnel involved will be held.Procedure QGP 1-1 to be revised.W/861223 ltr. (5 page(s), 12/23/1986)
• ML20238F790 - LER 86-006-00:on 860220,control room ventilation isolation signal manually initiated per Tech Spec 3.3.3.1 due to inoperability of control room intake radiation monitor. Caused by improper placement following maint.W/860320 ltr. (4 page(s), 3/20/1986)
• ML20244E433 - Forwards Physical Security Event Rept 86-052-01. (2 page(s), 11/13/1986)