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Abnormal Occurrence 50-289/75-24:on 750716,during removal of river water pump NR-P1B from svc,discharge valve failed to close.Caused by open phase on winding due to severe heat resulting in single phasing of other windings.

Accession Number: ML19210A208

Date Released: Monday, August 12, 2019

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• ML19210A207 - Abnormal Occurrence 50-289/75-24:on 750716,during removal of river water pump NR-P1B from svc,discharge valve failed to close.Caused by open phase on winding due to severe heat resulting in single phasing of other windings. (4 page(s), 7/25/1975)
• ML19210A212 - Abnormal Occurrence 75-24:on 750716,river water pump discharge valve failed due to low valve motor winding resistance & winding motor overheating. (1 page(s), 7/18/1975)