ML20154M668
| ML20154M668 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 05/27/1988 |
| From: | Kowalski S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Wenzinger E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-85-003, IEB-85-3, NUDOCS 8806020036 | |
| Download: ML20154M668 (2) | |
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,f PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHI A, PA.19101 (zis) e4145o2 S. J. KoW ALSKI VIC E.P R E $1D E N T m.............
May 27,1988 Mr. Edward C. Wenzinger, Chief Dockets: 277 Projects Branch No. 2 50-278 Division of Reactor Projects USNRC Region I ATTN: Doctment Control Desk Washington, DC 20555
Subject:
1.E. Bulletin 85-03 Supplement I "Motor-operated Valve Conmon Mode Failures During Plant Transients Due to Inproper Switch Settings" Peach Bottom Atcmic Power Station Units 2 & 3
References:
(1)
S. J. Kowalski (PECo) letter to E. C. Wenzinger (NRC),
dated April 29, 1988 (2)
J. S. Kenper (PEco) letter to W. T. Russell (NRC),
dated January 21, 1988 (3)
J. S. Kenper -(PECo) letter to T. E. Murley (NRC),
dated Noventer 3,1986
Dear Mr. Wenzinger:
This letter provides PECo's response for the Peach Bottcm Atomic Pcwer Station to I.E. Bulletin 85-03 Supplement 1 (dated 4/27/88).
Supplement 1 of I.E. Bulletin 85-03 was issued to clarify the NRC position on valve mispositioning. The motor-operated valve program established for Peach Bottom includes consideration of mispositioning of valves prior to performing their intended safety function. This was acccmplished by evaluating each valve storting in both the open and closed positions prior to moving to Its required safety posItlon. The nest conservative set of conditions was then selected as the basis for setting and maintaining switches to assure valve operability.
The above information and our previous responses'(References (1),
(2) and (3)), satisfacterfly demonstrate compliance with the requirements of IEB 85-03 Supplement 1.
8806020036 880527 I
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PDR ADOCK 05000277 I
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,e.* If you have any questions or require any addItlonal infonration regarding our 1.E. Bulletin 85-03 program, please do not hesitate to contact us.
Sincerely, Qa TSN/pdO5198804 Copy to: Addressee PBAPS Resident Site Inspector IRC Division of Operational Events Assessment NRC, Docunent Control Desk Washington, DC 20555 l