ENS 46979

v t e ENS Event
15:00 Jun 23, 2011
Title	High Pressure Coolant Injection System Declared Inoperable
Event Description	During performance of scheduled surveillance testing, the Unit 1 High Pressure Coolant Injection (HPCI) turbine control valve did not fully close when the system was secured. The HPCI system was removed from service and the control valve was inspected. The inspection identified a broken steam supply valve internal to the control valve. This condition would have prevented HPCI from fulfilling its safety function and is being reported for the inability of a single train system to mitigate the consequences of an accident.

ENS 46979 +/-
Where
Limerick Pennsylvania (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+2.65 h0.11 days <br />0.0158 weeks <br />0.00363 months <br />)
Opened:	John Weissinger 17:39 Jun 23, 2011
NRC Officer:	Donald Norwood
Last Updated:	Jun 23, 2011
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v • d • e

v t e Emergency Notification System
Limerick with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2025-03-03T15:44:00 [Table view]
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