ML20234B306
| ML20234B306 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/25/1987 |
| From: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.E.1.2, TASK-TM 5211-87-2123, NUDOCS 8707020331 | |
| Download: ML20234B306 (2) | |
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GPU Nuclear Corporation
= , Nuclear o
=e=gr8o Middletown, Pennsylvania 17057 0191 l 717 944 7621 TELEX 84 2386 Writer's Direct Olal Number:
June 25, 1987 5211-87-2123 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Gentlemen:
Three Mile Island Nuclear Station, Unit 1 (TMI-1)
Operating License No. DPR-50 Docket No. 50-289 Emergency Feedwater System Flow Control Valve Failure Position (NUREG-0737, Item II.E.1.2)
On February 18, 1987, the NRC issued a Safety Evaluation Report (SER) relating to NUREG-0737, Item II.E.1.2 (Emergency Feedwater System Review). In the SER, the NRC included a provision concerning the failure position of the TMI-1 Emergency Feedwater (EFW) System flow control valves (EF-Y30A/B/C/D). This provision related to the Babcock and Wilcox (B&W) Owners Group Safety and Performance Improvement Program (SPIP) study of the failure positions of essential air operated valves. The NRC provision required GPUN to review the findings of the B&W Owners Group study on this topic and to justify the failure position of TMI-l EFW flow control valves if this position is inconsistent with the study's findings. The purpose of this letter is to closecut the provision of the SER.
The B&W Owners Group SPIP studies relating to EFW flow control valves have been completed. The two (2) applicable reports are: " Instrument Air System Review Report", December 1986, Document No. 47-1165965-00;
" Auxiliary / Emergency Feedwater Systems Review-Final Report", May 1987, Document No. 47-1168159-00. As discussed with Mr. G. Edison, TMI-l NRC Project Manager, on May 21, 1987, neither of these reports contair,s a recommendation on EFW flow control valve failure position for those flow control valves supplied with a backup air supply. As such, the current TMI-l EFW flow control valve failure position does not need to be justified further and the NRC provision of the SER associated with valve failure position should be closed.
8707020331 070625 ,
PDR ADOCK 05000209 a P PDR JR(
A k0 GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation
5211-87-2123 June 25, 1987 l
GPUN had previously evaluated the current EFW Flow Control Valve Failure i Position and found it to be acceptable. This was documented to the NRC via GPUN letter 5211-86-2180, dated October 15, 1986.
GPUN now considers the TMI-1 EFW System Review SER to be without condition or provision.
1 Sincerely, s
H. D. Hu ill Vice President & Director, TMI-1 HDH:JCA:jh 4895g/0908A cc: J. Stolz, NRC W. Russell, NRC R. Conte, NRC G. Edison, NRC i
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