TS 4.9.12.crequires a system flow rate be verified at 19,490 cfm, +/- 10 percent during system operation. This requirement applies during the movement of irradiated fuel in the FHB. Contrary to the above,
PSEG measured the ventilation flow rate to be approximately 26 percent more than the TS flow rate of 19,490 cfm, and determined that this condition existed during the movement of irradiated fuel.
PSEG determined the cause of the high flow rate to be attributed to the air supply balancing
damper being out of position, the air pressure regulator on the FHB roll up door was incorrectly set and did not allow the door seal to inflate, and the FHB fan inlet guide vanes operating in a degraded condition. This violation was determined to be of low safety significance (Green) because negative pressure was maintained in fuel handling building during fuel movement, the amount of radioactivity from a postulated fuel handling accident was unchanged, and any to the control room, exclusion area boundary, and low population zone be well below regulatory limits.
PSEG has entered this violation in their
CAP as 20506179.
