ML20147A364
Jump to navigation
Jump to search
| ML20147A364 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 05/26/2020 |
| From: | Christopher Hunter NRC/RES/DRA/PRB |
| To: | |
| Littlejohn J (301) 415-0428 | |
| References | |
| LER 1982-069-00 | |
| Download: ML20147A364 (1) | |
Text
LER 325/82-069 Event
Description:
Scram with RCIC Inoperable Date of Event:
July 15, 1982 Plant:
Brunswick 1 Summary Brunswick Unit 1 was operating at approximately 55% power when a system operability test was performed on the reactor core isolation cooling (RCIC) system. When the RCIC turbine was started, it immediately tripped on high exhaust pressure. The ultimate cause of the trip was attributed to a control circuit design error. There was a scram five days prior to the RCIC failure, and RCIC was presumably inoperable at the time of the scram. The conditional core damage probability estimated for the event is 3.3x10-6.