ML20080R767

Responds to IE Bulletin 84-01 Re Insp for Cracks in Mark I Containment Torus Vent Header.No Apparent Cracking or Relevant Indications Found on Unit 1.No Addl Cracking Found Beyond Original Cracking on Unit 2

ML20080R767
Person / Time
Site:	Hatch
Issue date:	02/10/1984
From:	Beckham J GEORGIA POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-84-01, IEB-84-1, NED-84-065, NED-84-65, TAC-54150, NUDOCS 8402280405
Download: ML20080R767 (2)

Text

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'S T. Be'ckhamiJr.

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Nudear Generabon NED-84-065-

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February 10, 1984 w ,

[U.1 S. l Nuclear Regulatory Comiision .

REFERENCE:

Office of4 Inspection and Enfcrcement I6E: RCD Region II'- Suite 2900- ., 50-321/50-366 101.Marietta Street, hW. '

I6E Bulletin

' Atlanta, Georgia 30303. ,

84-01 SATTINTION: ' Mr. ' James P.' 0'Relily

. GENTLINEN

. . Georgia: Power Company provides the following response to I6E Bulletin

~

84-01, concerning ; inspection- for cracks in the Mark I containment torus vent

~ header: . ,

a The reference Bulletin was issued as -a1. result of the discovery of cracking:in the containment vent header. at Hatch Unit 2. At the time of discovery, the unit was in a cold shutdown condition for refueling and modifications. On February 3,1984, GPC decided to . shut down Hatch Unit 1 for inspection of the. vent header. Therefore, the provisions of the

. Bulletin, ~which . applied to funits already in cold shutdown, were addressed

for both Hatch units; The Bulletin required inspection of - the entire vent header and the main

~ ivents'in the region near the ' intersection with the vent header. On Unit 1, -

three visual inspections of these areas were performed. The first

' inspection was conducted from a < catwalk covering a- line of view of 170

. degrees from top center and down on the outboard side of the vent header.

The second -inspection was conducted from an inflatable ~ raft providing a line of view coverf ng the. remaining 190 degrees from top center and down on the

-inboard side. Thus the entire circumference of the vent header was

. -inspected. The third inspection was conducted in the interior of the vent

-header. No apparent cracking or' relevant indications were found.

On Unit 2, the torus had been drained for painting during the outage. A jcomplete: walkdown . inspection was performed of the areas required by the

Bulletin.- No additional' . cracking or- relevant indications were found beyond the origina1 cracking which prompted issuance of the Bulletin.

8402290405 8402iO l

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PDR ADOCK 05

_; a Georgia Powerd U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement February 10, 1984 Page 2 J.l T. Beckham, Jr. states that he is Vice President of Georgia Poier Company and is authorized to execute this oath on behalf of Georgia Power Company, and that to the best of his knowledge and belief the facts set forth in this letter are t me.

GEORGIA POWER COMPANY By: - 1 g J. T. Beckham, J f Sworn to sud bs ribed before me this 10th day of Febniary,1984.

. ,1 10~  %

otay @lk Notary Pubtfe, Georgfa, $f ate et terg, REB / My Commission bpires July 26,1935 xc: H. C. Nix, Jr.

Senior Resident Inspector Document Control Desk (NRC-Washington)

J. F. Stolz (NRC-NRR) 700775 m