ML20214J724

Forwards Recently Received Part 21 Repts from Vepco,Tube Turns,Inc,Foxboro Co,Smud & Morrison-Knudsen Co,Inc for Info

ML20214J724
Person / Time
Site:	Waterford
Issue date:	05/21/1987
From:	Gagliardo J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Dewease J LOUISIANA POWER & LIGHT CO.
References
REF-PT21-87-146-000 PT21-87-146, PT21-87-146-000, NUDOCS 8705280179
Download: ML20214J724 (2)

Text

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MAY 211987 In Reply Refer To:

Docket: 50-382 Louisiana Power & Light Company ATTN: J. G. Dewease, Senior Vice President Nuclear Operations N-80 317 Baronne Street New Orleans, Louisiana 70160 Gentlemen:

This forwards for your information, reports recently received by the Commission under the reporting requirements of 10 CFR Part 21.

Although no response is required to this letter, we shall be pleased to answer any questions which you may have regarding this matter.

Sincerely, Original Sign?d By J. E. Gagilardo J. E. Gagliardo, Chief Reactor Projects Branch

Enclosures:

1. Virginia Electric and Power Company Letter dated January 28, 1987

2. Tube Turns, Inc. Letter dated February 16, 1987

3. Foxboro Company Letter dated February 17, 1987

4. SMUD Letter dated February 10, 1987

5. Morrison-Knudsen Company, Inc. dated January 13, 1987 cc w/ enclosures: (seenextpage) 8700280179 87052'1 PDR S ADOCK 05000382 PDR PI 9*f MESkow: s C:RPB/A NA JPJaudon C:RP9 JEGagY ardo \\

5/H/87 5/h/87 5/ y/q

Louisiana Power & Light Company cc w/ enclosures:

Louisiana Power & Light Company ATTN: G. E. Wuller, Onsite Licensing Coordinator P. O. Box B Killona, Louisiana 70066 Louisiana Power & Light Company ATTN: N. S. Carns, Plant Manager P.- 0.~ Box B

! Killona, Louisiana 70066 1

4 Middle South Services ATTN: Mr. R. T. Lally P. O. Box 61000 New Orleans, Louisiana 70161 Louisiana Power & Light Company ATTN: K. W. Cook, Nuclear Safety and Regulatory Affairs Manager 317 Baronne Street New br ean L uisiana 70160 Louisiana Radiation Control Program Director bec to DMB (IE19)

! bec distrib. by RIV:

j RPB D. Weiss, RM/ALF-

RRI R. D. Martin, RA SectionChief(RPB/A) DRSP RPSB RSB MIS System Project Inspector, RPB j RSTS Operator R. Hall RIV File i

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_ _ . . . , , . ~ . , _ _ . . ~ _ _ . . . _ ._.-._ .__ _ _ _ _ _ _ _ . _ . . _ _ - . _ . , _ _ . - - _ _ .

o Enclosure 1 VIHOINIA ELECTRIC AND POWER COMPANY H w!! M ox n, VI HO INI A 20261 w.L.s7EWART ^

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m ne.. o, . .A,3 0.. January 28, 1987 Dr. J. Nelson Grace Serial No. 86-753A Regional Administrator N0/RCB:dmk Region II Docket Nos. 50-338 U. S. Nuclear Regulatory Cocmission 50-339 Suite 2900 License Nos. NPF-4 101 Marietta Street, N.W. NPF-7 Atlanta, GA 30323

Dear Dr. Grace:

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2 NEW SERVICE WATER SPRAY SUPPORT SYSTEM FOLLOW UP REPORT On November 12, 1986 Virginia Electric and Power Ccmpany reported a potential defect involving a substantial safety hazard at North Anna Power Station Units 1 and 2 in accordance with 10 CFR 21 (Serial No.86-753). In that report, we committed to ultrasonic testing of suspect materials and development of a repair / replacement plan.

Ultrasonic testing of the suspect materials has been completed, and the results have been documented in a Non-Conformance Report. Twenty-one steel columns supplied by Rockwell Engineering Company were found to have laminations in the web. Eight of the defective columns were never installed and will not be used in the spray array support structure. An action plan for replacing the remaining thirteen defective columns has been developed and is summarized below:

Defective columns will be replaced one at a time by removing the column and the attached footing, temporarily supporting connecting members and piping, installing replacement column and footing, and reattaching connecting members and piping.

The replacement plan for each defective column will be reviewed to l ensure that injurious stresses are not imparted to adjacent components l during the repair process.

Current plans are to replace defective columns prior to placing the new spray array system into operation.

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a Should you require further information, please contact me.

Very truly yours, fi t , c, .

W. L. Stewart e

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