ML20024A506
| ML20024A506 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 06/13/1983 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 10CFR050.55E, 10CFR50.55E, KMLNRC-83-071, KMLNRC-83-71, NUDOCS 8306170386 | |
| Download: ML20024A506 (1) | |
Text
r KstNSAS GAS AND ELECTRIC COMPANY THE ELECTAiC COMPANY GLENN L MOESTER vets **EteDENY NucLEan June 13, 1983 Mr. W.C. Seidle, Chief
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3 Reactor Pro]ects Branch 2 i
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U.S. Nuclear Regulatory Commission i
Region IV l jl
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611 Ryan Plaza Drive, Suite 1000 d
Arlington, Texas 76011 KMLNRC 83-071 Re:
Docket No. STN 50-482 Ref: 1) Interim Report KMLNRC 02-222 dated 7/19/82 from GLKoester, KGE, to WCSeidle, NRC
- 2) Interim Report KMLNRC 82-243 dated 9/23/82 from GLKoester, KG E, to WCSeidle, NRC
- 3) Interim Report KMLNRC 83-008 dated 1/19/83 from GLKoester, KGE, to WCSeidle, NRC
- 4) IE Information Notice 82-56 dated 12/30/82
" Robert Shaw Thermostatic Flow Control Valves" Subj: Final 10CFR50.55(e) Report - Diesel Generator Thermostatic Valves
Dear Mr. Seidle:
This letter provides the final 10CFR50.55(c) report on the diesel generator thermostatic valves at the Wolf Creek Generating Station. This matter was initially reported by Mr. Otto Maynard of Kansas Gas and Electric Company (KGE) to Mr. Ray Hall of the Nuclear Regulatory Commission, Region IV, on June 22, 1982. Supplemental information was provided in References 1), 2) and 3). In audition, Colt Industries reported this matter to Region III of the Nuclear Regulatory Commission pursuant to 10CFR21. A description of the thermostatic valve deficiency and the safety implications were provided in Reference 1) and were also the subject of Reference 4).
The valves at the Wolf Creek Generating Station have been reworked and are now free of the reported potential defect. More specifically, the valves have been replaced with a unit containing an overrun assembly utilizing a cotter pin to positively lock the nut to the stem.
In addition, the "O" ring used to control bypass leakage within the valve has been removed as recommended in Reference 4).
If you have any questions concerning this subject, please contact me or Mr. Otto Maynard of my staff.
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8306170386 830613 Yours very truly,
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PDR ADOCK 05000482
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PDR cc: RCDeYoung and HRoberds/WSchum 201 N. Market - Wichita, Kansas - Mail Address: RO. Box 208 I Wichita. Kansas 67201 - Telephone: Area Code (316) 2616451