Event Recorder Printout of Three Mile Island Accident


Page 13





10:31:25	Reactor Coolant Makeup Pump C (MU-P-1C) was started.  Reactor
(1432:02)
 		Coolant pressure was approximately 440 psig.
   
   

10:35:55	Reactor Coolant Makeup Pump C (MU-P-1C) was stopped.
(1436:32)


11:06:00	Pressurizer level started decreasing.
(1406:37)
Approximate


11:12:00	Reactor Coo1ant System cold leg Loop A temperature started to
(1512:37)
Approximate	increase from 200F to 400F.  Reactor Coolant System hot leg Loop A
      
 		temperature decreased from above the instrument range to 560F.
 


11:18:34	Reactor Coolant Makeup Pump C (MU-P-1C) was started.
(1519:11)


 11:24:00	Pressurizer level stopped decreasing at 180 inches and started
(1524:37)
Approximate	increasing, going off scale during the next hour.



11:28:12	Reactor Coolant Makeup Pump C (MU-P-1C) was stopped.
(1528:49)


11:32:37	Reactor Coolant Makeup Pump C (MU-P-1C) was started.
(1533:14)


11:35:48	Reactor Coolant Makeup Pump C (MU-P-1C) was stopped.
(1536:25)


11:36:00	Operator commenced filling Steam Generator B to 97% on the Operating
(1536:37)
Approximate	Range instrumentation.


12:00:00	Steam Generator A level was 97% on the Operating Range.
(1600:37)
Approximate 


12:48:00	Pressurizer level came on scale.
(1648:00)
Approximate



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