ENS 46646

v t e ENS Event
03:59 Feb 28, 2011
Title	Degraded Accident Mitigation Due to Safety Injection Out of Service
Event Description	At 2159 CST on 2/27/2011, during the testing of the 'A' Train Safety Injection System, an Auxiliary Operator in the field identified that the oiler for 2P-15B, 'B' Train Safety Injection Pump, had rotated and the oil had drained out of the oiler. The Auxiliary Operator immediately reported this condition to control room personnel. The 'B' train safety injection pump was declared inoperable and LCO 3.0.3 was entered based upon the condition of both trains of safety injection being out of service. The Unit 2 'A' Train Safety Injection System was being tested in accordance with inservice testing procedure IT-535C, Leakage Reduction and Preventive Maintenance Program Train 'A' HHSI and RHR Piggyback Test Mode 1,5,6 (Refueling) Unit 2, which placed the Unit 2 ECCS in TSAC [Technical Specification Action Condition] 3.5.2.A, One ECCS Train Inoperable. Unit 2 exited LCO 3.0.3 at 2211 CST, upon completion of the 'A' train inservice test. The 2P-151B safety injection pump remains inoperable in accordance with TSAC 3.5.2.A, One ECCS Train Inoperable for troubleshooting and repair. This condition is reported in accordance with 10 CFR 50.72(b)(3)(v)(D) Accident Mitigation. There was no impact on Unit 1 and the licensee notified the NRC Resident Inspector.

ENS 46646 +/-
Where
Point Beach Wisconsin (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+-0.23 h-0.00958 days <br />-0.00137 weeks <br />-3.15054e-4 months <br />)
Opened:	Russ Parker 03:45 Feb 28, 2011
NRC Officer:	Vince Klco
Last Updated:	Feb 28, 2011
46646 - NRC Website
v • d • e

v t e Emergency Notification System
Point Beach with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2018-03-01T22:43:00 [Table view]
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