ML20125D254

Forwards New Proposed Schedule for Responding to IE Bulletin 79-14.Contrary to Date Stated in ,Results of Analyses Re Accessible Piping Will Be Provided on 791026

ML20125D254
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/12/1979
From:	Trimble D ARKANSAS POWER & LIGHT CO.
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
IEB-79-14, NUDOCS 8001140200
Download: ML20125D254 (2)

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ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 UTTLE ROCK. ARKANSAS 72203 (5011371-.".000 October 12, 1979 l-109-13 Mr. K. V. Seyfrit, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Comission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011

Subject:

Arkansas Nuclear One-Unit 1 Docket No. 50-313 License No. DPA-51 IE Bulletin 79-14 (File: 2-1510)

Gentlemen:

Due to the necessity of rewalking portions of Seismic Category I Piping at ANO-1, the stress analyses of " accessible" piping are not complete at this time. We will provide you with the results of these analyses October 26, 1979. This is a change in the schedule provided to you in our letter dated August 31, 1979.

In addition, we need to change the due dates of Items 3 and 4 in the above mentioned schedule. Enclosure 1 is our new proposed schedule for responding to IE Bulletin 79-14. We regret this slippage, but the time required to perform the stress analyses proved to be greater than we had i predicted. <

1 Very truly yours,

. v pavidC.Trimble v' Manager, Licensing DCT:M0W:nak ,

Enclosure ec: Mr. Victor Stello, Jr., Director Mr. Norman C. Moseley, Director Office of Inspection and Enforcement Division of Reactor Operations U.S. Nuclear Regulatory Commission Inspection l Washington, D.C. 20555 Nuclear Regulatory Commission 4350 East West Highway l Mr. W. D. Johnson Bethesda, Maryland 20555 l U.S. Nuclear Regulatory Commission Post Office Boy. 2090 Russellville, Arkansas 72801 8 0 01 140 JLOO  ;

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ENCLOSURE 1

1. By September 14, 1979 - (Complete)

Update all stress isometrics for " accessible" piping (Located outside the Reactor Building), make a detailed comparison with seismic calcu- i lations and determine whether or not any calculations need to be rerun.

Submit a list of items to be reanaly:ed and justification for all non-  !

conformances that are satisfactory. I

2. By October 26, 1979- d Complete all stress analysis work determined to be necessary under (1) -,

above.

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3. By November 26, 1979 Update all stress isometrics for " inaccessible" piping (Located inside the Reactor Building), make a detailed comparison with seismic calcula-tions, and determine whether or not any calculations need to be rerun.

Submit a list of items to be reanaly:ed and justification for all non-conformances that are satisfactory.

4. By December 21, 1979 Complete all stress analysis work determined to be necessary under (3) above, and submit reports required by ISE Bulletin 79-14 Item 4.

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