ML20050C348
| ML20050C348 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/29/1982 |
| From: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| REF-SSINS-6820 5211-82-069, 5211-82-69, IEB-79-01A, IEB-79-1A, NUDOCS 8204080422 | |
| Download: ML20050C348 (1) | |
Text
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i GPU Nuclear g
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P.O. Box 480 Middletown, Pennsylvania 17057 717-944-7621 Writer's Direct Dial Number:
March 29, 1982 s#
5211-82-069 f,,
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-3 Office of Inspection and Enforcement 7
gpp 7 Attn:
R. C. Haynes 6
Region I, Regional Administrator MkhjyW 9
C U. S. Nuclear Regulatory Commission 631 Park Avenue W
King of Prussia, PA 19406
Dear Sir:
Three Mile Island; Nuclear Station, Unit 1 (TMI-1)
Operating License No. DPR-50 Docket No. 50-289 Supplemental Response to IE Bulletin 79-01A In our response to IE Bulletin 79-01A dated September 27, 1979 (GQL 1202) we stated for the ASCO solenoid valves at TMI-l that "...the solenoid coil, the manual operator, and the resilient parts of the valve are being replaced in accordance with the time period established by the manufacturer and documented as the qualified life of the assembled component". The manufacturer has evaluated the qualified life to be 4 years inside containment with a normal ambient temperature of 140 F environment.
Since the ASCO solenoid valves are not located in this environment, a 4 year replacement is unjustified.
We have evaluated the qualified life of the ASCO solenoid valves in their TMI-1 environment and have documented it in the System Component Evaluation Sheets (SCEW) dated January 30, 1981 (LlL 026).
~ These SCEW sheets,provided as part of our response to IE Bulletin 79-01B, establish the qualified life of components based on analysis and/or tests for the plant specific environment which may be different from the generic manufacturer recommended time period. The replacement schedule is, then, reflected in the TMI-l preventive maintenance program.
3 Sincerely, f
3; H. D. H (ill Director, TMI-l HDH:LWH:vj f cc:
L. Barrett J. F. Stolz i
R. Jacobs Cyril Crane B204080422 820329 f'DR ADOCK 05000289 u
PDR f, d
- UPU Nuclear IS a part of the General Public Utilities System 5