ML20154L483
| ML20154L483 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 05/27/1988 |
| From: | Mcdonald R GEORGIA POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| IEB-85-003, IEB-85-3, SL-4697, NUDOCS 8805310313 | |
| Download: ML20154L483 (3) | |
Text
_ _ _ _ _ _ _ _ _
Georg3a F% vet Compary 333 he&Pont A'.tnue Adanta, Georg.a 30303 Werhene 404 506 6526 VWg Adcras-Post Off.ce Box 4545 Athrta, Georg a 30302 R. P. Mcdonald t*e southern c!ectrc splem Esecube V:ce Pres 4ert Nucler: Operabons SL-4697 02891 X7GJ17-H110 May 27, 1988 U.S. N. clear Regulatory Cor ission ATTN:
Document Control Desk Hashington, D.C.
20555 PLANT HATCH - UNITS 1, 2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF-5 NRC BULLETIN 85-03. SUPPLEMENT 1 Gentlemen:
Supplement 1 to NRC Bulletin 85-03, "Motor-0perated Valve Common Mode Failures During Plant Transients Due to Improper Switch Settings,"
dated April 27, 1988, was issued to clarify, (1) which valves are to be included and, (2) the meaning of the phrase ".... inadvertent equipment operations (such as inadvertent valve closures or openings)...." as used in the bulletin.
Supplement 1 also required BHR licensees to review and document the design basis for the operation of safety-related motor-operated valves in the high-pressure coolant injection (HPCI) and reactor core isolation cooling (RCIC) systems, considering inadvertent mispositioning of a valve and the fact that the valve must be able to recover from such mispositionings.
Supplement 1 requested a written report be submitted to the NRC within 30 days, providing the information stated above for any valves not already included in the IEB 85-03 program (including maximum opening and closing differential pressure).
A schedule for completing the remaining portions of the program (items b through d of the original bulletin) and a final report were also requested.
I Georgia Power Company is a participating utility in the BHR Owners Group (BHROG) Committee on bulletin 85-03.
GPC understands that the BWROG Committee and the NRC have discussed the scope of the "inadvertent mispositioning" of HPCI and RCIC valves.
From conversations with the BHROG Committee chairman, and the BWROG March 28, 1988, letter to the NRC (Reference 1), GPC understands that a total of nine additional valves should be considered by utilities who have participated in the BHROG Committee.
'If 8805310313 880527
/
PDR ADOCK 0500 1
't 0 Q
Georgia Power d U. S. Nuclear Regulatory Commission May 27, 1988 Page Two Although GPC respectfullly disagrees with any precedent requiring the consideration of event; beyond the plant design basis in the IEB 85-03 program, we will address inadvertent valve positioning as evaluated by the BWROG Committee relative to the pertinent valves at Plant Hatch.
The
- BWROG, however, has not completed development of the generic methodology needed for Plant Hatch-specific differential pressure calculations.
The timeliness of GPC's response to Supplement 1 is dependent on the generic work being conducted by General Electric for the BHROG.
Upon receipt of the BWROG input, GPC will provide the NRC with the information requested in IEB 85-03, Supplement 1.
The current BHROG schedule calls for a mid-July 1988 submittial to the NRC on the generic methodology.
GPC plans to submit plant-specific calculations within 30 days of the BHROG submittial date. Also, as stated in GPC's Hay 4, 1988, letter to the NRC (Reference 2), GPC would like to meet with appropriate NRC staff personnel to discuss the details of the IEB 85-03 program.
If you have questions in this regard, please contact our office at any time.
Sincerely, L,)
R. P. Mcdonald GKH/cd
REFERENCES:
1.
Letter, R. F. Janecek (BHROG) to J. H. Sniezek (NRC), "IE Bulletin 85-03," dated March 28, 1988.
2.
GPC Letter SL-4431, from R. P. Mcdonald (GPC) to USNRC, "Request for Additional Information on IE Bulletin 85-03,"
dated May 4, 1988.
c: (See next page.)
0289I
-_ _ _ _ _ _ _ ~_
t; Georgia Power d U. S. Nuclear Regulatory Commission May'27, 1988 Page Three c:
Georaia Power Comoany Mr. J. T. Beckham, Jr., Vice President - Plant Hatch Mr. L. T. Gucwa, Manager Nuclear Safety and Licensing GO-NORMS U. S. Nuclear Reg'ilatory Commission. Haihinaton. D.C.
Mr. L. P. Crocker, Licensing Project Manager - Ilatch U. S. Nuclear Regulatory Commission. Reaion 11 Dr. J. N. Grace, Regional Administrator Mr. P. Holmes-Ray, Senior Resident Inspector - Hatch 0289I
-