ML20126H725

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Informs That Mod of Letdown & Refueling Cavity Purification Sys Will Be Completed During Cycle 9/10 Refueling Outage,Per 10CFR50,App J.Mod Cannot Be Performed During Cycle 8/9 Refueling Due to Time Needed to Procure Safety Valves
ML20126H725
Person / Time
Site: Maine Yankee
Issue date: 05/31/1985
From: Whittier G
Maine Yankee
To: John Miller
Office of Nuclear Reactor Regulation
References
57796-SEN, 5779L-SEN, GDW-85-157, MN-85-103, NUDOCS 8506100394
Download: ML20126H725 (1)


Text

7 EDISON DRIVE MAIRE HARHEE ATOMICPOWERCOMPARUe avausra, uainE oasas g

(207) 623-3521 g

May 31, 1985 MN-85-103 GDW-85-157 Director of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, D. C.

20555 Attention:

Mr. James R. Miller, Chief Operating Reactors Branch No. 3 Division of Licensing

References:

(a) License No. D'R-36 (Docket No. 50-309)

(b) MYAPCo Letter to USNRC dated January 11, 1984 (MN-84-07)

(c) MYAPCo Letter to USNRC dated January 8,1985 (MN-85-04)

Subject:

10 CFR 50, Appendix J - Modification of Letdown and Refueling Cavity Purification Systems Gentlemen:

Maine Yankee has agreed to modify several plant systems to permit draining containment penetration lines and leak testing with air in accordance with 10 CFR 50, Appendix J.

With References (b) and (c), Maine Yan' ee committed to completing all system modifications during the Cycle 8/9 refueiing outage.

Modification of the Letdown and Refueling Cavity Purification systems cannot be performed during the Cycle 8/9 refueling outage due to the long lead time needed to procure safety class valves for these systems.

In the interim, the containment penetrations associated with these systems shall continue to be leak tested utilizing the same test method used in previous years.

1.

Maine Yankee will complete modification of the Letdown and Refueling Cavity Purification systems during the Cycle 9/10 refueling outage.

We trust this information is satisfactory. Please contact me should you have any questions.

l Very truly yours, MAINE YANKEE ATOMIC POWER COM'ANY Af 0 /W G. D. Whittier, Manager Nuclear Engineering & Licensing GDW/bjp ft

/

cc: Dr. Thomas E. Murley 0506100 g g505 9

Mr. Cornelius F. Holden p

5779L-SEN