ML20084G106

Interim Deficiency Rept Re Liquid Penetrant Indication on Pullman Power Products Reactor Coolant Crossover Leg Elbow. Initially Reported on 840324.Evaluation Continuing.Final Rept Expected by 840606

ML20084G106
Person / Time
Site:	Vogtle
Issue date:	04/18/1984
From:	Foster D GEORGIA POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
GN-343, NUDOCS 8405070071
Download: ML20084G106 (2)

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• 4 E a t uoO D. O. Foster Georgia Power V ce Pres dert aad P'Oject Ge^ era; Mara;er 'T r f' e FT t ,1ve VC Fe PrC;eCf April 18, 1984 United States Nuclear Regulatory Commission File: X78G03-M57 Office of Inspection and Enforcement Log: GN-343 Region II-Suite 3100 101 Marietta Street Atlanta, Georgia 30302

Reference:

Vogtle Electric Generating Plant-Units 1 and 2, 50-424, 50-425; Reactor Coolant Crossover Leg Elbow Attention: [Mr_.]ilanieYKUIRdN5h.3 Gentlemen:

On March 24, 1984, Mr. C. W. Hayes, Vogtle Project Quality Assurance Manager, reported a potential deficiency to Mr. John Rogge of the USNRC that concerned a liquid penetrant indication on the reactor coolant crossover leg elbow. At this time, Georgii Power Company is submitting an interim report on its evaluation of this concern.

Pullman Pcwer Products, in nonconformance report No. MD-6028, noted a liquid penetrant indication on the base material of a 31" I.D. X 40 elbow following field welding of this elbow to the outlet nozzle of a steam generator. The indication was reported as linear in nature,1-3/4" long, and 5/8" away from the toe of the weld. Light buffing of this area by Pullman Power Products did not clear the indication, but caused it to "open up". Westinghouse site personnel examined the area using SX and 10X magni-fication and observed traces of arcing and molten metal. This would indi-cate that the area was possibly subjected to an arc strike and weld spatter.

The indication was removed by grinding and the resultant cavity was weld repaired and inspected in accordance with approved procedures. The dis-t crepancy was generated during installation and does not involve the elbow supplier. Georgia Power Company is continuing its evaluation of this inci-dent and expects to submit a final report to the USNRC on this subject by

( June 6, 1984.

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Reactor Coolant Crossover Leg Elbow Page Two l

This letter contains no proprietary information and may be placed in '

the NRC Public Document Room.

Yours truly, h 6-D. O. Foster REF/D0F/tdm xc: U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555 xc: R. J. Kelly R. E. Conway G. F. Head C. W. Hayes D. M. MacLemore D. E. Dutton W. F. Sanders R. H. Pinson P. D. Rice R. A. Thomas J. A. Bailey

0. Batum G. Bockhold B. M. Guthrie E. D. Groover L. T. Gucwa M. Malcom H. H. Gregory, III J. T. Beckham, Jr.

J. L. Vota A