(Open) Unresolved Item
05000530/2015002-04,
TAC Number MF6276 -
NOED Number 15-4-01. Notice of
Enforcement Discretion of
Technical Specification 3.5.3 Emergency Core Cooling System - Operating Conditions B and C On May 27, 2015, the licensee removed Unit 3 high pressure safety injection train A for planned maintenance. The following morning, during the maintenance, the licensee noted
lube oil contamination, and determined that an outboard motor bearing had apparently failed during the last run following maintenance during the last refueling outage which involved disassembling and reassembling the bearing. The licensee identified procedural guidance inadequacies in the reassembly procedure that were the likely cause of the failure. The licensee could not perform required repairs in a controlled manner within the remaining action statement completion time, so on May 29, 2015, the licensee requested a Notice of
Enforcement Discretion for a one-time action statement extension of
24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to allow time to reassemble and test the replacement bearings prior to restoring operability. The NRC granted that request as
NOED 15-4-01. The licensee completed maintenance, testing, and restoration approximately
11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br /> into the 24-hour extension window. In accordance with
Inspection Manual Chapter 0410, Unresolved Item (
URI)
05000530/2015002-04 is opened for
NOED 15-4-01, and remains open pending further inspection and disposition in a future inspection report.
