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Ack receipt of 761019 & 26 final repts re GE ac circuit breakers & emergency diesel generator jacket cooling water heat exchangers,respectively.Requests addl info re reactor coolant pump seal injection isolation valve failure.
Accession Number: ML19329B081
Date Released: Saturday, November 7, 2020
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- ML19329B079 - Ack receipt of 761019 & 26 final repts re GE ac circuit breakers & emergency diesel generator jacket cooling water heat exchangers,respectively.Requests addl info re reactor coolant pump seal injection isolation valve failure. (1 page(s), 11/11/1976)
- ML19329B083 - Deficiency rept re GE AK-3-25 & AK-3-50 volt ac circuit breakers,power sensors & supplies,supplementing 760806 interim deficiency rept.Power supply circuit redesigned to eliminate failed zener diode mode. (2 page(s), 10/19/1976)
- ML19329B089 - Interim deficiency rept re zener diode failure mode for GE breaker power sensors.GE 760512 ltr re potential for same encl.All GE power sensor power supplies & logic units to be replaced. (3 page(s), 8/6/1976)
- ML19329B094 - Interim deficiency rept re MU-HV66B reactor coolant pump seal injection isolation valve.Valve disassembled & actuator removed.Final rept to be forwarded 761119. (2 page(s), 10/25/1976)
- ML19329B095 - Interim deficiency rept re red lead primer on emergency diesel generator jacket cooling water heat exchangers.Tube bundles in exchangers replaced. (2 page(s), 10/26/1976)
- ML19329B096 - Final deficiency rept re use of seismically unqualified GE Type HFA relay.Relays retested & found qualified. (2 page(s), 10/27/1976)
- ML19329B097 - Final deficiency rept re broken valve actuator yoke on isolation valve MU-HV66B.Cast iron yokes replaced w/steel. (2 page(s), 10/27/1976)
- ML19329B101 - Forwards IE Insp Rept 50-346/76-19 on 760906-11 & 16-24. Noncompliance noted. (2 page(s), 10/19/1976)
- ML19329B104 - IE Insp Rept 50-346/76-19 on 760906-11 & 16-24.Noncompliance noted:pressure gages did not conform w/procedures during containment proof test. (20 page(s), 10/18/1976)
