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Forwards RO-76-3-12(B),RO-76-3-13(B) & RO-76-3-14(B).
Accession Number: ML100251154
Date Released: Tuesday, June 1, 2010
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- ML100251153 - Forwards RO-76-3-12(B),RO-76-3-13(B) & RO-76-3-14(B). (1 page(s), 6/24/1976)
- ML100251155 - RO 76-3-12(B):on 760525,during performance of surveillance test,bistable PC-4578 trip setting found to be below limiting safety sys setting.Caused by Foxboro bistable Model 63U-AC-OHAA-F drift.Followup test performed. (1 page(s), 6/24/1976)
- ML100251156 - RO 76-3-13(B):on 760526,while at 75% power,motor control ctrs 34 & 39 tripped,causing loss of individual control rod indication & initiating turbine runback.Caused by low overload settings of Westinghouse air circuit breakers. (1 page(s), 6/24/1976)
- ML100251157 - RO 76-3-14B:on 760527,while at 50% power,motor control ctrs 34 & 39 tripped,causing loss of individual control rod position indication & initiating runback.Caused by low settings of Westinghouse air circuit breakers for MCC 34 & 3 (1 page(s), 6/24/1976)