ML17037B936

Letter Proposing to Reschedule Revision 1 of the Plant Design Assessment for Safety Relief Valve and Loss of Coolant Accident Loads to Be Submitted in November, 1977

ML17037B936
Person / Time
Site:	Nine Mile Point
Issue date:	02/07/1977
From:	Rhode G Niagara Mohawk Power Corp
To:	Rusche B Office of Nuclear Reactor Regulation
References
Download: ML17037B936 (4)

Text

NRC FORM 195 I2P76) t v.S. NUCLEAR REGULATORY Co>

"SS ION NRC DISTRIBUTION FoR PART 50 DOCKET MATERIALt DOCKET NUMBER FILE NUMBER S -<rs TO: '"Mr-B.C-Rusche Niagara Mohawk Pwr Corp

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.E3 NOTOR IZE D RLINCLASSIFIED PROP INPUT FORM NUMBER OF COPIES RECEIVED 1 signed DESCRIPTION Ltr re our 1-14-77 ltr....furnihhing schedule for response to questions concerning containme dynamic loade.........

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'I 3202 February 7, 1977 Director of Nuclear Reactor Regulation Attn:

Mr. Benard C. Rusche, Director U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Re:

Nine Mile Point Unit 2 Docket No. 50-410

Dear Mr. Rusche:

Mr. Varga's January 14, 1977 letter requested a schedule for response to certain questions regarding the Nine Mile Point Unit 2 Containment dynamic loads.

We have reviewed this matter with our Architect Engineer and Nuclear Steam Supply Vendor.

Based on this review, we propose to reschedule Revision 1 of the "Plant Design Assessment for Safety Relief Valve and Loss of Coolant Accident Loads."

Revision 1 was previously scheduled to be submitted in

June, 1977, as indicated in our September 1, 1976 letter to Mr. Vassallo.

Revision 1 is now scheduled to be submitted in

November, 1977, and willincorporate the information requested in the January 14, 1977 letter and Revision 3 to the "Mark II Containment Dynamic Forcing Functions Report."

Please note that requests 020.62g) and 020.63(2) are addressed in Section 10 of the Unit 2 "Plant Design Assessment for Safety Relief Valve and Loss of Coolant Accident Loads" Report which was submitted June 30, 1976.

Very truly yours, NIAGARA MOHAWK POWER CORPORATION BOCY.rIEG USRRC Fee 'I>>"r'"

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