U-600208, Part 21 & Deficiency Rept (21-85-06) Re Potential Defect in Natl Valve & Mfg Co Sway Strut & Snubber Pipe Clamps. Evaluation Being Conducted

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Part 21 & Deficiency Rept (21-85-06) Re Potential Defect in Natl Valve & Mfg Co Sway Strut & Snubber Pipe Clamps. Evaluation Being Conducted
ML20134G140
Person / Time
Site: Clinton Constellation icon.png
Issue date: 08/12/1985
From: Hall D
ILLINOIS POWER CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
REF-PT21-85 (21-85-06), (21-85-6), U-600208, NUDOCS 8508230064
Download: ML20134G140 (1)
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- U '600208 L16-85 (08 -12 )-L 1A.120 ILLIN0/S POWER COMPANY CLINTON POWER STATION. P.O. BCx 678, CLINTON ILLINOIS 61727 August 12, 1985 Docket.No. 50-461

-Mr. James G. Keppler Regional Administrator Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Subject:

10CFR Part 21 Defect Failure of Sway Strut and Snubber Pipe Clamps at Clinton Power Station (21-85-06)

Dear Mr.'Keppler:

In Illinois Power Company's letter to Mr. Frank Jablonski, NRC Region III, (Ref. U-10024,.1606-L, dated January 17, 1983), Illinois Power agreed to notify Region III of those~10CFR Part 21 defects that affect Clinton Power Station and that were previously reported to the Commission by. vendors or contractors. In accordance with that agree-ment, the following information is submitted:

l Basic Engineers Division of National Valve and Manufac-l turing Company has notified the Clinton Power Station l of a Potential 10CFR21 Defect in its sway strut and snubber pipe clamps which may cause them to slip circumferentially around the pipe when a compressive load less than the faulted rated load is applied at an angle of 5' to the centerline.

Illinois Power is conducting an evaluatiot; of the reported' condition at the Clinton Power Station and will assure.that adequate corrective action is taken.

Sinc ely yours, D. . all Vice President JV/ lab cc: NRC Resident Office Illinois Department of Nuclear Safety Director, Office of I&E, USNRC, Washington DC 20555 INPO Records. center 8508230064 850812 AUb 14 PDR S

ADOCK 05000461 PDR I

)O ((19

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