ML19341C584

Deficiency Rept Re Failure of Tack Weld on safety-related Automatic Air Damper Supplied by Pacific Air Products Co, Initially Reported on 800912.Util Working W/Constructor Re Reportability Per 10CFR50.55e & 10CFR21

ML19341C584
Person / Time
Site:	Grand Gulf
Issue date:	10/13/1980
From:	Mcgaughy J MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, AECM-80-254, NUDOCS 8103030785
Download: ML19341C584 (2)

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EndMhhManE MISSISSIPPI POWER & LIGHT COMPANY Helping Build Mississippi P. C. G O X 16 4 0, J A C K S O N , MISSISSIPPI 39205

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YisrTNs7eV october 13, 1980 Office of Inspection & Enforcement gg\

• Qg U. S. Nuclear Regulatory Commission Region II g I \\

101 Marietta Street, N.W. '

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Suite 3100 T

9 /,f/jgI/Sgg lq Atlanta, Georgia 30303 ,,,, y-

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Attention: Mr. J. P. O'Reilly, Director v\ 4 s

Dear Mr. O'Reilly:

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SUBJECT:

Grand' Gulf Nuclear Station Units 1 and 2 Docket Nos. 50-416/417 -)

File 0260/15525/15526 PRD-80/57, Status Report, HVAC p

Automatic Dampers AECM-80/254 On September 12, 1980, Mississippi Power & Light Company noti-fied Mr. M. Hunt of your office of a Potentially Paportable Defi-ciency (PRD) at the Grand Gulf Nuclear Station (GGNS) construction site. The deficiency concerns the failure of a tack weld on a safety related autecatic air damper supplied by Pacific Air Products Company.

We are working with the constructor to determine reportab?lity of this item under 10CFR50.55(e) and 10CFR21. Our Status Report is attached. We expect to file our Final Report on this matter by January 21, 1981.

Yours truly, J. P. McGaughy, Jr.

WD'H:st Attachment Mr. Victor Stello, Director cc: Mr. N. L. Stampley Mr. R. B. McGehee Division of Inspection & Enforcement Mr. T. 3. Conner U. S. Nuclear Regulatory Commission Washington, D.C. 20555 0lf I

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• • & 9 81030307g Member Middle South utilities Cystem

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• STATUS REPORT FOR PRD-80/57 I. Description of the Deficiency i

The tack weld on the shaft of a saf ty t related automatic failed during an attempt to open the blade. The tac' weld connects the shaft to the blade bracket. The dampers are Q1X77F001A-A and

- Q1X77F003-C in the Safeguard Switchgear and Battery Rooms Ventila- -

tion System (X77). These (.ampers were supplied by Pacific Air Company under Bechtel Specification No. 9645-M-617.1.

II. Plans for Resolving the Deficiency Mississippi Power & Light Company is working with the construc-tor to evaluate the deficiency for reportability under 10CFR50.

i 55(e) and 10CFR21. The following staps will be performed and tracked under Bechtel Quality Action Request (QAR) No. F-234 to ensure that this item is adequately resolved:

1. Evaluate the deficiency for effect on iafety of plant opera-tions; 4 2. Determine the extent of the deficiency ; and

3. Perform corrective actions, including actions to prevent re-currence.

III. Status of Proposed Resolution The constructor has written to the supplier, Pacific Air Products, and requested additional information to fully investigate this deficiency. They were also requested to provide instructions for repair of air dampers.

MP&L should recaive this evaluation by January 1981.

IV. Reason for Delay in Final Report Investigative efforts are not complete.

7 Final Report Date We expect to file our final report by January 21', 1981.

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