Part 21 Report - 1997-070

LICENSEE: VICTOREEN, INC. SITE: VICTOREEN, INC. EN NUMBER:31692 DOCKET: EVENT DATE: 01-27-97 RX TYPE: EVENT TIME: 00:00 VENDORS: NOTIFY DATE: 01-30-97 EMERGENCY CLASS: N/A REGION: 3 STATE: OH TIME: 14:12 OPS OFFICER: LEIGH TROCINE 10 CFR SECTION: CCCC 21.21 UNSPECIFIED PARAGRAPH VICTOREEN INC. MADE A 10 CFR PART 21 NOTIFICATION REGARDING A DIGITAL DISPLAY UNIT. VICTOREEN INC. LOCATED AT 6000 COCHRAN ROAD IN CLEVELAND, OHIO, MADE A 10 CFR PART 21 NOTIFICATION THAT THEIR DIGITAL DISPLAY IN THE DIABLO CANYON NUCLEAR POWER PLANT CONTROL ROOM (RDU), FOR SAFETY-RELATED MONITOR R44B, STOPPED UPDATING (i.e, DISPLAY FROZEN). FURTHER TESTING DETERMINED THAT ALTHOUGH THE ALARM RELAY CHANGED STATE AFTER INPUTTING A TEST SIGNAL, THE RELAY OUTPUT AT THE RDU DID NOT. THIS IS AN UNIDENTIFIED FAILURE CONDITION IN THE DESIGN.

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