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Loss of Residual Heat Removal (RHR) While the Reactor Coolant System (RCS) is Partially Filled (Generic Letter No. 87-12)

… several years, and lessons learned from the April 10, 1987 Diablo Canyon loss-of-RHR event require an assessment of operations … that these plants meet the licensing basis. Study of the Diablo Canyon event has led to identification of unanalyzed …

Information Notice No. 89-84: Failure of Ingersoll Rand Air Start Motors as a Result of Pinion Gear Assembly Fitting Problems

… 1, 1989, during the performance of a surveillance test at Diablo Canyon Unit 1, the number one emergency diesel generator … other air start motors as a consequence of this event. The Diablo Canyon site has a total of 20 air start motors, four …