Technical Specification 5.4.1.a states, in part, that written procedures shall be implemented covering the applicable procedures recommended in
RG 1.33, Revision 2, Appendix A, February 1978, of which Section 9 specifies procedures for performing maintenance. Contrary to this, on March 21, 2013, the licensee identified that during the week of March 18, 2013, maintenance personnel tightened the locking collar set screws on the Unit 2 A charging pump to an incorrect
torque value of 10.5 ft-lbs, as specified in station procedure 0-MCM-0103-01, Repair of the Charging and High Head Safety Injection Pump, Step 6.32.6, instead of the manufacturer recommended value of 35 ft-lbs. Specifically, the Unit 2 A charging pump was degraded because the mechanical shaft
sleeve overheated during pump operation due to insufficient tightening of the locking collar set screws. The inspectors determined that this finding was of very low safety significance (Green) because the finding did not represent an actual loss of function of at least a single train for greater than its technical specification allowed outage time or two separate safety systems out-of-service for greater than its technical specification allowed outage time. The inspectors determined that the licensee correctly evaluated the finding and developed appropriate corrective action as documented in the licensees
CAP as CR508838.
