ML20093D866
| ML20093D866 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 07/09/1984 |
| From: | Murphy W VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | Vassallo D Office of Nuclear Reactor Regulation |
| References | |
| FVY-84-84, NUDOCS 8407170260 | |
| Download: ML20093D866 (2) | |
Text
f VERMONT YANKEE
- NUCLEAR-POWER CORPORATION FVY 84-84 RD 5, Box 169, Ferry Road, Brattleboro, VT 05301
,,,,y 7o; ENGINEERING OFFICE 1671 WORCESTER ROAD FRAMINGHAM, MASSACHUSETTS G1701 July 9,1984 1,t, mon,,,,.,,,,,
U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention:
Office of Nuclear Reactor Regulation Mr. Domenic B. Vassallo, Chief Operating Reactors Branch No. 2 Division of Licensing
References:
a)
License No. DPR-28 (Docket No. 50-271) b)
Letter, VYNPC to USNRC, FVY 84-58, Proposed Change No.120 to Facility Operating License No. DPR-28, dated June 5, 1984 c)
Letter, VYNPC to USNRC, FVY 84-62, Proposed Change No.120, Supplement 1, to Facility Operating License No. DPR-28, dated June 15, 1984
Dear Sir:
Subject:
Clarification of Proposed Change No.120 to the Vermont Yankee Technical Specifications By letter dated June 5, 1984 [ Reference b)], we requested a change to the Vermont Yankee Technical Specifications to revise the definition of the term
" Operable" and to incorporate a revision to Specification 3.7.B.1.
These revi-sions were intended to allow refueling operations to proceed with one Emergency Diesel Generator out of service for routine maintenance purposes. Although Specification 3.5.H.4 presently allows refueling activities to be conducted with one diesel generator out of service, with respect to Emergency Core Cooling Systems (ECCS) operability, Specification 3.7.B.1 requires both diesel genera-tors to be in service to declare secondary containment operable.
We have held numerous conference calls with members of your staff since the submittal of Reference b). Subsequently, we submitted Supplement 1 to the sub-ject Proposed Change by letter dated June 15,1984[Referencec)]. This supple-ment deleted the proposed definition revision of " Operable" and, further, specifically revised Specification 3.7.B.1 so that secondary containment could be satisfied with the Standby Gas Treatment System (SBGTS) and one diesel generator operable, g7QOg000 P
Tl.S. Nuclear R gulatory Commission July 9, 1984 Pags 2 VEltMONT YANKEE NUCLEAlt POwlsit COltl'OltATION We were recently informed by members of your staff that our existing Specification 3.7.B.1 can be interpreted to allow the following:
1.
To begin moving irradiated fuel with one Emergency Diesel Generator out of service for maintenance, and/or 2.
Change operational mede from shutdown to refueling with one Emergency Diesel Generator out of service for maintenance.
The above is allowed for up to seven days provided the appropriate sur-veillance requirements are satisfied. This interpretation will only be utilized during refueling / maintenance outages.
For the reasons stated in References b) and c), we request that you continue your review and approval of the subject Proposed Change in a timely manner.
However, based on this interpretation of our existing Technical Specifications, it is no longer necessary to expedite this Proposed Change.
The use of the aforementioned interpretation will be implemented, as necessary, during our present and future refueling outages.
We trust that the above interpretation is transcribed correctly; however, should you have any questions regarding this matter, please contact us as soon as possible.
Very truly yours, VERMONT YANKEE NUCLEAR POWER CORPORATION t: Ah.?
WarrenP.[dentand urphy Vice Presi Manager of Operations WPM /dm