Part 21 Report - 1997-800
LICENSEE: CONVAL, INC.
SITE: CONVAL, INC. EN NUMBER:33144
DOCKET: EVENT DATE: 10-24-97
RX TYPE: EVENT TIME: 00:00
VENDORS: NOTIFY DATE: 10-24-97
EMERGENCY CLASS: N/A REGION: 1 STATE: CT TIME: 14:09
OPS OFFICER: STEVE SANDIN
10 CFR SECTION: CCCC 21.21 UNSPECIFIED PARAGRAPH
10CFR21 REPORT -
FIVE (5) CONVAL FORGED VALVE BODIES 1"-1500# DESIGN, #5, Y-GLOBE,
STOP AND CHECK VALVE, WHICH ARE IDENTIFIED BY CONVAL'S BASIC FIG.
# 1.00-12G2J-S165F AND FIG. # 1.00-12C2-S165F SUPPLIED TO BOTH
MAINE YANKEE ATOMIC POWER (3 VALVES) AND INDIANA & MICHIGAN POWER
(D.C. COOK 1 & 2) (2 VALVES) MAY HAVE A DEFECT RELATED TO A
POSSIBLE CRACK WITHIN THE FORGING WALL AT THE DIE FLASH LINE.
ONLY ONE OF THE FIVE VALVES IS KNOWN TO BE INSTALLED AT THE D.C.
COOK SITE. THE FORGINGS FOR THESE FIVE VALVES ARE IDENTIFIED AS
IDEAL FORGE HEAT CODE LOT "M7", WHICH IS STAMPED ON EACH BODY
FORGING. CONVAL DISCOVERED THE FORGING DEFECT DURING AN
INVESTIGATION OF A VALVE RETURNED BY A CUSTOMER. IDEAL HAS TAKEN
CORRECTIVE ACTION TO ELIMINATE THE PROCESSING PROBLEMS. THE
AFFECTED NUCLEAR POWER PLANTS HAVE BEEN NOTIFIED BOTH VERBALLY
AND IN WRITING.
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