Technical Specification 6.8.1.a requires, in part, that written procedures shall be established; implemented; and maintained covering the applicable procedures recommended in Appendix A of
Regulatory Guide 1.33, Revision 2, February 1978, specifically Section 9, Procedures for Performing Maintenance, part a. Contrary to the above, on December 15, 2013, maintenance personnel incorrectly configured the replacement circuit boards for the qualified display processing system. A combination of poorly written maintenance procedures (contained in
work order 522613 and
0PGP03-ZM-0025A, Post-Maintenance Testing Implementation, Revision 4) and inadequately trained personnel led to the flow control HI LIMIT value on the replacement cards to be set to 0.0 gpm when it should have been set at 35 gpm. This error was discovered in a surveillance performed on May 5, 2013. This could have led to the failure of the feed regulating valves motor due to exceeding the motors duty cycle time, thereby reducing the
feedwater flow below its required flow rate as specified in the technical specifications. The inspectors discussed this with a senior reactor analyst and used Manual Chapter 0609, Appendix A, to determine that the finding was of very low safety significance (Green) because the finding did not contribute to the loss of mitigation equipment. The licensee entered this issue into the corrective action program as Condition Report 13-6145.
