AECM-85-0129, Forwards Revised Fire Protection Review Summary Rept,Per 10CFR50,App R & Bechtel Rept, Fire Hazards Analysis,Grand Gulf Nuclear Station,Unit 1. Review of Mods Increasing Fire Protection Requested.Fee Paid

Forwards Revised Fire Protection Review Summary Rept,Per 10CFR50,App R & Bechtel Rept, Fire Hazards Analysis,Grand Gulf Nuclear Station,Unit 1. Review of Mods Increasing Fire Protection Requested.Fee Paid

ML20117E082
Person / Time
Site:	Grand Gulf
Issue date:	05/07/1985
From:	Dale L MISSISSIPPI POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML20117E084	List: AECM-85-0129, Forwards Revised Fire Protection Review Summary Rept,Per 10CFR50,App R & Bechtel Rept, Fire Hazards Analysis,Grand Gulf Nuclear Station,Unit 1. Review of Mods Increasing Fire Protection Requested.Fee Paid
References
AECM-85-0129, AECM-85-129, NUDOCS 8505100316
Download: ML20117E082 (3)

Text

I .

J MISSISSIPPI POWER & LIGHT COMPANY

)) Helping Build Mississippi hilbiltil4lE P. O. B O X 164 0, J A C K S O N, MI S SI S SIP PI 39215-1840 May 7, 1985 NUCLE AR LICEN5lNG & $AFETY DEPARTMENT U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, D. C. 20555 Attention: Mr. Harold R. Denton, Director

SUBJECT:

Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 File: 0260/L-860.0 Submittal of Revised Fire Hazards Analysis and 10CFR50 Appendix R Fire Protection Review Summary Report AECM-85/0129 In late 1981, Mississippi Power & Light (MP&L) conducted a comparison of the Grand Gulf Nuclear Station (GGNS) fire protection program with its understanding of NRC requirements. (Appendix R to 10CFR50 was not directly applicable to plants such as GGNS which were licensed to operate after January 1, 1979.) The results of that review were documented in Table 9A-4 of the CGNS FSAR and forwarded to the Staff by letter of October 23, 1981.

Subsequently, numerous meetings between industry and the NRC Staff were held in order to clarify the Appendix R requirements. These meetings resulted in several clarifying Staff documents (e.g., Generic Letter 83-33 and Information Notice 84-09) and in 1984 culminated in regional workshops conducted by the NRC Staff to provide industry with a full understanding of these requirements.

(The guidance issued during these workshops, consolidated in Staff Generic Letter 85-01, is still undergoing Staff review and Commission affirmation.)

Subsequent to the workshops, based on the new clarifications of Appendix R. MP&L informed the NRC Staff that it would update its 1981 Appendix R comparison of the GGNS Fire Protection Program. MP&L has kept the NRC Staff informed of the progress of and schedule for this reanalysis, which is now essentially complete.

The results of MP&L's reanalysis are contained in two documents, 1) an updated GGNS Unit 1 Fire Hazards Analysis (FHA) and 2) a 10CFR50 Appendix R Fire Protection Review Summary Report. Ten (10) copies of each document are enclosed.

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• AECM-85/0129 Page 2 These documents and actions noted therein are provided in response to MP&L's commitment set forth in its August 27, 1981 letter to comply with the requirements of Sections III.G, III.0 and III.J of Appendix R, with " exceptions to be the justified on a case-by-case basis." In this regard, MP&L has I l provided in its Summary Report justifications for several exceptions to Section l l III.G of Appendix R for which NRC Staff review is requested. Further, the l Summary Report reflects proposed modifications to four (4) fire areas that i MP&L will make to bring them into compliance with MP&L's current understanding )

of the literal requirements of Section III.G of Appendix R. In this regard, l to avoid delays in the finalization of the process, the FRA was revised I assumingicompletian of the modifications. Areas where modifications are proposed are clearly identified in the Summary Report.

1 Significantly, the modifications in all cases provide an increase in fire protection above that reflected in the GGNS Fire Protection Program. In this regard, the enclosed FHA supercedes the FRA referenced in Appendix 9A of the GGNS FSAR.

Should you have any questions regarding the enclosed information, MP&L is available to discuss the attached documents at your request.

Yours truly, L. F. Dale Director MLC/JGC:vog Attachments cc: Mr. J. B. Richard (w/a)

Mr. O. D. Kingsley, Jr. (w/a)

Mr. R. B. McGehee (w/a)

Mr. N. S. Reynolds (w/a)

Mr. G. B. Taylor (w/o)

Mr. R. C. Butcher (w/a)

Mr. James M. Taylor, Director (w/a)

Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Dr. J. Nelson Grace, Regional Administrator (w/a)

U. S. Nuclear Regulatory Commission Region II 101 Marietta St., N. W., Suite 2900 Atlanta, Georgia 30323 J0P13AECM85050601 - 2

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f # Attechment to AECM-85/0129 In accordance with the requirements of 10 CFR 170 an application fee of $150 is attached.