00:l0:19 Reactor Bui1ding Sump Pump B (WDL-P-2B) started. (0410:56) 00:10:24 Reactor Coolant Makeup Pump A (MU-P-1A) tripped. (0411:01) 00:10:27 Reactor Coolant Makeup Pump A (MU-P-1A) was started. (0411:04) 00:10:28 Reactor Coolant Makeup Pump A (MU-P-1A) tripped. (0411:05) 00:10:40 Reactor Bui1ding Sump high level alarm received. Setpoint is (0411:25) 4.650 feet. 00:11:40 Reactor Coolant Makeup Pump A (MU-P-lA) was started. (0412:17) 00:14:50 The Reactor Coolant Drain Tank rupture diaphragm (WDL-U26) failed. (0415:27) 00:24:58 The operator requested computer printout of the Electromatic (0425:35) Relief Valve (RC-RV2) outlet temperature. The reading was 285.4F. 00:25:00 Intermediate Cooling System high radiation alarm annunciator (0425:37) Approximate received at the Radiation Monitor Pane1. 00:36:08 Emergency Feedwater Pump 2B (EF-P-2B) was stopped. (0436:45) 00:38:10 Reactor Bui1ding Sump Pump A (WDL-P-2A) was stopped. (0438:47) 00:38:11 Reactor Building Sump Pump B (WDL-P-2B) was stopped. (0438:48) 01:10:54 Reactor Building air cooling coils emergency discharge alarm (0511:31) printed out.- 6 -