NRC CAL – NOV (White)

On April 20, 2007, a Notice of Violation was issued for a violation associated with a White SDP finding involving: (1) inadequate corrective actions to prevent a repeat failure of the #9 main crankshaft bearing on emergency diesel generator (EDG) #1: (2) the failure to follow the foreign material exclusion procedure during maintenance performed on EDG #1; and (3) the failure to promptly identify and implement adequate actions to prevent EDG #1 from tripping on low lubricating oil pressure. These conditions ultimately contributed to an EDG #1 trip and a bearing failure during a Unit 2 loss-of-offsite-power event. The violation was cited against Technical Specification 3.8.1, "AC Sources-Operating," because EDG #1 was inoperable from October 30 to November 7, 2006. As a result, while Unit 1 was operating in Mode 1, only three of four EDGs were operable for a period in excess of 7 days.