Event Recorder Printout of Three Mile Island Accident


Page 7





01:13:29	Reactor Coolant Pump 2B (RC-P-2B) was stopped.
(0514:06)


01:13:42	Reactor Coolant Pump 1B (RC-P-1B) was stopped.
(0514:19)


01:13:27	The alarm printer became unavailable at this time and remained
(0513:59)
		out of service until 02:47:31 (0648:08).


01:20:31	Operator requested printout of the Electromatic Relief Valve

		(RC-RV2) outlet temperature.  The reading was 283.0F.


01:40:37	Reactor Coolant Pump 2A (RC-P-2A) was stopped.
(0541:14)


01:40:45	Reactor Coolant Pump 1A (RC-P-1A) was stopped.
(0541:22)


01:42:00	Operator started raising Steam Generator A level from 30 inches
(0542:37)    
Approximate	on the Startup Range to 50% on Operating Range.  Reactor Coolant

		System Loops A and B cold leg temperatures both started decreasing.
            
		Reactor Coolant System pressure started decreasing.



01:54:00	Reactor Coolant System Loop A hot leg temperature began increasing.
(0554:37)
Approximate


02:00:00	Steam Generator A level reached 50% on Operating Range.
(0600:37)
Approximate 


02:00:00	Reactor Coolant System Loop B hot leg temperature began increasing. 
(0600:37)


02:12:00	Reactor Coolant System Loop B hot leg temperature increased to
(06l2:37)
		offscale at 620F.



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