Susquehanna: Coolant Injection System Inoperable

Event Number: 46268
Event Date: 09/22/2010
Emergency Class: NON EMERGENCY

HIGH PRESSURE COOLANT INJECTION SYSTEM INOPERABLE DUE TO A MINOR LUBE OIL LEAK

"At 0830 [EDT] on 09/22/2010, the Unit 2 High Pressure Coolant Injection (HPCI) system was determined to be inoperable due to a minor lube oil leak on the 'A' supply filter. LCO 3.5.1 for the HPCI system was entered at 0830 [EDT] on 09/22/2010.

"The leak on the 'A' filter could not be immediately corrected. The 'B' filter was placed in service and leak checked satisfactorily. The LCO 3.5.1 action statements were closed at 1454 [EDT] on 09/22/2010.

"This incident is being reported as an event or condition that could have prevented fulfillment of a safety function required to mitigate the consequences of an accident in accordance with 10CFR50.72(b)(3)(v)(D)."

The licensee notified the NRC Resident Inspector.