ML20084K018

AO 50-237/1974-54:on 741022,leak Detected on Gland Leakoff Line for Valve 2-1201-99A.Caused by Improperly Welded Joint. Old Elbow Joint & Stainless Steel Line Replaced Using Approved Welding Technique

ML20084K018
Person / Time
Site:	Dresden
Issue date:	10/31/1974
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8305190120
Download: ML20084K018 (2)

Text

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Comm :Ith Edison

T One First ._ anil Paza, Chicigo.1;linois Addr:ss R: ply to: Post Offica Box 767

... Chicago, Illinois 60690 BBS Ltr.#789-74 Dresden Nuclear Power Station

, R. R. #1 -

Morris, Illinois 60450 October 31, 1974 Mr. James G. Keppler, Regional Director Directorate of Regulatory Operations-Region III U. S. Atomic Energy Commission 799 Roosevelt Road Olen Ellyn, Illinois 60137

SUBJECT:

REPORT OF AENOTC&L OCCURRENCE PER SECTION 6.6.B 0F THE TE ENICAL SPECIFICATIONS.

LEAK ON GLAND LEAK OFF LINE FOR VALVE 2-1201-99A.

References:

1) Regulatory Guide 1.16 Rev.1 Appendix A

2) Notification of Region III of AEC Regulatory Operations Telephone: Mr. P. Johnson, 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> on October 23, 1974 Telegram: Mr. J. Keppler, 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> on October 23,.1974

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3) Drawing Number M-30 g., f,)

Report Number: 50-237/1974-54 m? lr \/

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/ < M if [' f Q Report Date: October 31, 1974 2 j O [ VfM M s .)

Occurrence Date: October 22, 1974 .$g Lu/i,'$ D

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Facility: Dresden NuclcAr Power Station, Morris, Illinois b {v'

J F O' LEARY DIRECTOR 00 RECT 0RETTE OF LICENSING U S ATOH!C ENERGY O COMMISSION .

WASHINGTON OC 20545 O

O I O, SUBJECT DPR-2 ORESDEN NUCLEAR POWER STATION UNIT ! AND DPR=19 DRESDEN NUCLEAR POWER STATION UNIT 2 THIS WILL CONFIRM A CONVERSATION WITH MR JOHNSON OF YOUR OFF!CE AT 1600 HOURS THIS DATE CONCERNING LEAK THROUGH P!PE WALL ON UNUSED 9 STEAM SAMPLE LINE ON UNIT 1. UNIT 1 IS BEING SHUT DOWN TO REPAIR LINE AND INSTALLVALVE AS PRESENT LINE CAN BE ISOLATED WITH DIFFICULTY ,

DUE TO INACCESSIBILITY OF ISOLATION VALVE. b A PIPE HOLE LEAK WAS DISCOVERED ON A PACKING LEAR OFF LINE ON MANUAL ISOLATION VALVE ON THE CLEAN UP SYSTEM OF UNIT 2". THIS LEAK IS PRESENTLY ISOLATED AND WILL BE REPAIRED IN THE NEAR FUTURE.

B B STEPHENSON SUPERINTENDENT ORESDEN NUCLEAR POWER STATION COMPONWEAL

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