A
Severity Level IV violation of
10 CFR Part 50.9(a) (Completeness and Accuracy of Information), dispositioned as a non-cited violation, was identified for failure to report the correct unavailability hours associated with the
High Pressure Coolant Injection (
HPCI) system. The information submitted to the NRC by the licensee in the first quarter of 2001, to fulfill requirements of the NRC Performance Indicator Program, was not correct. Specifically, while performing testing on the
HPCI system on April 21, 2001, the systems controller was found
inoperable. The licensee reported no unavailability hours related to this fault because the system was not required to be
operable, due to the plant configuration, during the test period
This is contrary to the requirements of the program in which the fault exposure time (the time between last successful operation of the system and determination of the fault) must be accounted for in the unavailability report. This finding is more than minor because the actual unavailability hours of the
HPCI system changed the NRC Performance Indicator color from Green to White. As a result the licensees
mitigating systems cornerstone did not properly reflect its status as a degraded cornerstone for 9 months. Additionally, the performance of a Supplemental Inspection by the NRC related to the controller failure was not conducted until 16 months after the occurrence. (Section 02.01.1.c)
