ENS 40384

v t e ENS Event
23:00 Dec 10, 2003
Title	Reduction in Accident Mitigation Due to Improper Hpci Suction Transfer
Event Description	During the performance of planned Unit 2 High Pressure Coolant Injection (HPCI) Logic System Functional Surveillance testing an unexpected condition occurred. It was observed during the HPCI suction swap from the Condensate Storage Tank (CST) to the Torus, that the CST level lowered and the Torus level rose unexpectedly. At that time, the test was aborted and the system was restored to an available status but maintained Tech. Spec. inoperable pending additional evaluation. Following the evaluation, it was determined that the HPCI system Torus suction check valve permitted reverse flow. The HPCI system could not be restored to an operable status and requires additional troubleshooting and maintenance to return to an operable status." The licensee notified the NRC Resident Inspector.

ENS 40384 +/-
Where
Peach Bottom 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:+0.82 h0.0342 days <br />0.00488 weeks <br />0.00112 months <br />)
Opened:	Alan Raush 23:49 Dec 10, 2003
NRC Officer:	Jeff Rotton
Last Updated:	Dec 11, 2003
40384 - NRC Website
v • d • e

v t e Emergency Notification System
Peach Bottom with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2021-04-30T03:54:00 [Table view]
[ENS list for Peach Bottom]

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