Event Recorder Printout of Three Mile Island Accident


Page 8





02:17:53	Operator requested Electromatic Relief Valve (RC-B2) outlet
(0618:30)
		temperature  The reading was 228.7F.


02:22:00	The Electromatic Relief Block Valve (RC-V2) was shut.
(0622:37)
Approximate
   

02:30:00	Operator started increasing Steam Generator B from 30 inches on
(0630:37)
		Startup Range to 50% on Operating Range.


02:45:00	Several radiation alarms were received.
(0645:37)
Approximate


02:45:00	Reactor Coo1ant Makeup Pump C (MU-P-1C) was stopped.
(0645:37)
Approximate


02:45:00	Operator opened main Steam Isolation Valves (MS-V4B and MS-V7B).
(0645:37)
Approximate


02:50:00	Site Emergency was declared.  Notification to offsite authorities
(0650:37)
Approximate	and organizations were initiated.


02:51:57	Operator attempted to start Reactor Coolant Pump 2A (RC-P-2A).
(0652:34)
		Pump would not start.


02:53:l9	Operator attempted to start Reactor Coolant Pump 1B (RC-P-1B).
(0653:53)
		Pump would not start.


02:54:09	Operator started Reactor Coolant Pump 2B (RC-P-2B).
(0654:45)


02:54:49	High Pressure Injection Engineered Safeguards actuation logic
(0655:25)
		reset on increasing Reactor Coolant System pressure.






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