ML19340E985
| ML19340E985 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 01/09/1981 |
| From: | Heider L VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | Ippolito T Office of Nuclear Reactor Regulation |
| References | |
| FVY-81-7, NUDOCS 8101160447 | |
| Download: ML19340E985 (2) | |
Text
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YERMONT Y AN KEE NUCLEAR POWER CORPOR ATION in h2 g!
SEVENTY SEVEN GROVE STRECT B.3.2.1
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FR AMINGH AM M ASS ACHUSETTS o17ol TELEPHONE ei7 e72 stoo j-January 9, 1981 United States Nuclear Regulatory Commission Washington, D. C.
20555 Attention: Office of Nuclear Reactor Regulation Mr. T. A. Ippolito, Chief Operating Reactors Branch #2 Division of Licensing
Reference:
(a) License No. DPR-28 (Docket No. 50-271)
(b) VYNPC Letter (WVY 80-107) to USNRC dated July 25, 1980
Subject:
Proposed Schedule for Remaining Torus Modification at Vermont Yankee
Dear Sir:
This letter is written to document information given to Mr. R. Clark of your staff during a telephone conversation on January 9, 1981.
Mr. Clark requested information regarding Vermont Yankee's intentions for completing the modifications required by the Mark I Program.
Reference (b) documented our proposed schedule for completing Mark I Program activities. All modifications identified in Reference (b), with the exception of torus piping re-support, have been completed. Due to problems incurred in running the generic computer program, the torus external attached piping analysis has not been completed; as such, these modifications cannot be implemented during the Fall 1981 refueling outage as tentatively proposed in Reference (b). Our engineering consultant informs us that results of the piping analysis will be available by mid-1981. In addition, the Vermont Yankee Plant Unique Torus analysis, which will confirm torus shell motions for shell-piping interaction analysis will not be available until Fall 1981. Until both these analysis are complete, the extent and nature of any attached piping modifications /resupport, is unknown.
Recognizing the long lead times associated with the procurement / delivery of nuclear-grade materials, such as snubbers, the earliest, reasonable date that Vermont Yankee could commit to for completing any required modifications would be the end of the 1983 refueling outage, tentatively scheduled for April 1983.
We trust,this information is satisfactory; however, should additional 8101360 y47 p
. t United States Nuclear Regulatory Conunission Page Two Attention: Office of Nuclear Reactor Regulation January 9, 1981 information be required, please contact us.
Very truly yours, VERMONT YANKEE NUCLEAR TOWER CORPORATION l/Ydst/! V t
L. H. Heider Vice President
.