ML19210A232

Abnormal Occurrence 50-289/75-21:on 750625,coolant Temp Trip Bistable Channel C Failed to Trip During Test of Reactor Protection Sys.Caused by Defective Printed Circuit Board Solder Joint in Signal Converter

Date released: 08/12/2019	Download: ML19210A232

Abnormal Occurrence 75-21:on 750625,reactor Protection Sys Channel C Failed During Surveillance Test.Caused by Coolant Temp Trip Bistable Failure to Trip Due to Component Failure in Signal Converter

ML19210A235
Person / Time
Site:	Three Mile Island
Issue date:	06/25/1975
From:	Colitz J METROPOLITAN EDISON CO.
To:
References
Download: ML19210A235 (1)

Abnormal Occurrence 50-289/75-21:on 750625,coolant Temp Trip Bistable Channel C Failed to Trip During Test of Reactor Protection Sys.Caused by Defective Printed Circuit Board Solder Joint in Signal Converter

ML19210A231
Person / Time
Site:	Three Mile Island
Issue date:	07/03/1975
From:	Arnold R METROPOLITAN EDISON CO.
To:
References
Download: ML19210A231 (4)