ML20106B835

Part 21 Rept Re Cracked Weld Found in Sample of ASTM A-500 Grade B Steel Tubing Heat T42510 from Coil 924544.Micro Analysis Indicated That Edges of Tubing Did Not Come in Contact from Weld During Mfg Process

ML20106B835
Person / Time
Site:	Browns Ferry
Issue date:	09/24/1992
From:	Fojtik TENNESSEE VALLEY AUTHORITY
To:	Scarfo G NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD)
References
REF-PT21-92 NUDOCS 9210050207
Download: ML20106B835 (1)

Text

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{ POWER REACTOR

-l l EVE!1T NUMBER:

.+-----------------------+

24298 f

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FACILITY: BROWNS FERRY REGION: 2 flOTIFICAT1'N DATE: 09/24/92 UNIT: [1] [2] (3) STATE: AL NOTIFICATION TIME: 12:33-(ET]

1 RX1 TYPE: [I] GE-4,[2) GE-4,[]) GE-4 EVENT DATE: 09/24/92 4 . - - - - - - - - - - - - - - - - - - - - - - - - - . - - - - - - - - - - -- - - - - - - - - - - + E V E N T T I M E : 11:00(CDT]

NRC IIOTIFIED BY: FOJTIK lLAST UPDATE DATE: 09/24/92;

}{Q .O: S OFFICER: GREG SCARFO +-----------------------------+ -

4 ---_- ..-- -------.------ ---------------------+ NOTIFICATIONS l-EMERGENCY CLASS: NOT APPLICABLE +------------ ~----------*----+

10 CFR-SECTION:-

CDEG 21. 21 (c) ( 3 ) ( i) DEFECTS / NONCOMPLIANCE .,

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- l UNIT l SCRAM CODE lRX CRIT lINIT PWRl INIT RX MODE lCURR PWRl CURR RX MODE l. '

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L 1 N  !! O REFUELING 0 REFUELING-

.l 2 N Y 98 POWER OPERATION 98 POh?R OPERATION 3  !! N O REFUELING l 0 REFULLIGG EVENT TEXT

.+----------------------------------------.. --- -------------------------------+.

.l. DEFECTIVE STEEL TUBING WAS DISCOVERED AT THE BROWNS FERRY PLANT.

'A CRACKED WELD WAS FOUND IN A SAMPLE OF ASTM A-500 GRADE B STEEL-TUBING HEAT NUMBER T42510 PROM COIL NUMBER 924544. THE MANUFACTURER OF THE TUBING IS UNR-LEAVITT. A MICRO AliALYSIS INDICATED THAT THE EDGES OF THE TUBING DID NOT COME IN CONTACT TO FORM THE WELD DURING THE N1ANUFACTURING. PROCESS.

THE SAMPLE WAS FROM TUBING SUPPLIED TO CONSOLIDATED POWER SUPPLY-(P.O.

1. S65- 17742) AND DELIVERED TO TVA/BECHTEL AT BROWNS FERRY NUCLEAR PLANT IN ALABAMA.

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