ML20063L641
| ML20063L641 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 02/25/1994 |
| From: | Fenech R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 94-02, 94-2, NUDOCS 9403070225 | |
| Download: ML20063L641 (3) | |
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Terresme veey Auno.ty Post Omen Box ;un safdy-orgsy. Tenner.see 37379-2000 Robert A. Fenech vice Pres,dera, Secsoyah Nuclear Matt February 25, 1994
.i U.S. Nuclear Regulatory Commission ATTN: Document Control. Desk Washington, D.C. 20555 Gentlemen:
In the Matter of
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Docket Nos. 50-327 Tennessee Valley Authority
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50-328 SEQUOYAII NUCLEAR PLANT (SQN) - UNITS 1 AND 2.- FACILITY OPERATING a
LICENSES DPR-77 AND DPR TECllNICAL SPECIFICATION (TS) 3.7.12 -
l SPECIAL REPORT 94-02 The enclosed special report provides details concerning.six fire barriers that will b'e nonfunctional for a period of' time greater than the TS allowable timeframe. This report is being submitted in accordance with TS 3.7.12 Action Statement (a)..
If you have any questions concerning this submittal, please telephone-C.11. Whittemore at (615) 843-7210.
Sincerely,
,9 A t d. /., L Robert A. Fenech Enclosure cc: ' See page 2 f
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a U.S. Nuclear Regulatory Commission Page 2 February 25, 1994-cc (Enclosure):
J Mr. D. E. LaBarge, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 NRC Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 Regional Administrator U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia-30323-2711 s
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ENCLOSURE SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 SPECIAL REPORT 94-02 DCS.Cription of Condition In support of the modification activities associated with Vital Battery Board Rooms I, II, III, and IV on Elevation 749.0 of.the auxiliary building, the following six fire barriers will be intentionally breached for periods that exceed the technical specification (TS) allowable timeframe.
1.
Fire Door A-180, connecting 480-volt (V) Board Room 1B and 480-V Board Room 1A 2.
Fire Door A-182, serving 125-V Vital Battery Room I 3.
Fire Door A-181, serving 125-V Vital Battery Room II 4.
Fire Door A-195, serving 125-V Vital Battery Room III 5.
Fire Door A-194, serving 125-V Vital Battery Room IV 6.
Equipment hatch on the Elevation 749.0 floor, joining 480-V Board Room 1A and the 6.9-kilovolt shutdown board room on Elevation 734.0 These conditions are being reported in accordance with TS Action Statement 3.7.12.a.
Cause_of_fondition A design change notice (DCN) has been issued to replace the battery cells; modify the existing battery racks; and repaint 125-V Vital Battery Rooms I, II, III, and IV on Elevation 749.0 of the auxiliary building.
The implementation of this DCN modification will require approximately six weeks per room; however, only one room at a time will be affected.
The doors and the equipment hatch mentioned above will be breached as needed to facilitate the movement of material, equipment, and personnel and also'to route any required cables and hoses necessory to accomplish the job. The DCN is expected to be completed in late July 1994.
Cm activa._ Action In accordance with Limiting Condition for Operation 3.7.12 Action Statement (a), the fire-detectors in the area outside the battery rooms were verified operable; a roving fire watch was established and will be maintained until the fire barriers are reestablished as required by TSs.
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