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Part 21 Report - 1997-660

LICENSEE: BW/IP INTERNATIONAL, INC. SITE: BW/IP INTERNATIONAL, INC. EN NUMBER:32985 DOCKET: EVENT DATE: 09-24-97 RX TYPE: EVENT TIME: 08:55 VENDORS: NOTIFY DATE: 09-24-97 EMERGENCY CLASS: N/A REGION: 4 STATE: CA TIME: 12:00 OPS OFFICER: STEVE SANDIN 10 CFR SECTION: CCCC 21.21 UNSPECIFIED PARAGRAPH PART 21 NOTIFICATION THE EMERGENCY SERVICE WATER PUMP, BW/IP MODEL 16-GH 4-STAGE VTP FAILED DURING A SITE OPERABILITY TEST AT THE OYSTER CREEK GENERATING STATION. AN INSPECTION REVEALED THAT THE THREADED FLANGE ATTACHING THE COLUMN TO THE TOP SERIES CASE HAD FAILED. THE UTILITY (GPU) ATTRIBUTED THE FAILURE TO DISSIMILAR METALS; A CAST IRON FLANGE WAS INSTALLED BETWEEN THE STAINLESS STEEL COLUMN PIPE AND A STAINLESS STEEL TOP CASE. BW/IP REVIEWED THE UTILITIES EVALUATION AND RECOMMENDED THAT ALL SUCH PUMPS IN HIGH ION SERVICES BE UPGRADED TO 316 STAINLESS STEEL MATERIAL.

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