ML20083A430

Telecopy Ro:On 831207,linear Crack Indication Identified by NDE in Weld DSHS-3-2 of Head Spray Piping of RHR Sys. Apparently Caused by Intergranular Stress Corrosion Cracking.Insp Per IE Bulletin 83-02 Will Be Performed

ML20083A430
Person / Time
Site:	Browns Ferry
Issue date:	12/08/1983
From:	Jones G TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-83-02, IEB-83-2, NUDOCS 8312200285
Download: ML20083A430 (1)

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T. G. Campbell, 1760 CST 2-C T. L. Chinn, BFNP J. F. Cox, W11B85C-K TELECOPY TO NRCc. W. Crawford, 670 CST 2-C December 8,1983. Duncan, W11C127C-K S. Goldman, E124AC-K U. S. Nuclear Regulatory Commission G. R. Hall, 6204 MIB-K Region II Receptionist, Plt Supt Office 101 Marietta Street, NW R. L. Lumpkin, Jr., 401 UBB-C Suite 3100- L. M. Mills, 400 CST 2-C Atlanta, Georgia 30303 G. Paulk, NRC Shift Engineer.

BFRO-50-296/830359 F. A. Szczepanski, 220 401B-C W. C. Themison, BFN Reported under Technical Specification 6.7 2.A.3 Telecony Date December 8,1983 21as. 9:00 a.m.

Date of Occurrence: December 7,1983 Time of Occurrence: 2:00 p.m. Unit 3 Technical Specification Involved: 3 6.G conditions Prior to Occurrence - Unit 1 - Refueling outage Unit 2 - 3281 MW (th) Steady-state Unit 3 - Refueling outage Identification and Descrintion of Occurrerne - While performing inspections of unit 3 piping, per IE Bulletin 83-02, a linear crack-like indication was detected by ultrasonic examination on weld DSHS-3-2 of the head spray piping of the RHR system. The indication is located on the downstream side of the weld at approximately 10 o' clock and is approximately 1-1/2 inches long with a through wall depth of approximately 205-from the inside of the pipe.

.This is the first crack indication identified in the 162 welds which have been inspected and evaluated during the utirasonic examination of unit 3 piping welds.

Annarent enuna of Occurrence: - Crack appears to be intergranular stress corrosion cracking.

Other Related Events: - BFRO-50-260/82040 259/83023 259/83049 Corrective Action Taken or Pinnnad: - Inspection of the remaining welds

- required by IE Bulletin 83-02 will be completed and details of inspection findings a corrective actions will be submitted as required.

G.~T nes Po Plant Superintendent Browns Ferry Nuclear Plant 8312200285 831200 OFPICiAI. COPY gDRADOCK 05000296 PDR Q[2 :

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