ML20058A862
| ML20058A862 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/18/1993 |
| From: | Fenech R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 93-22, NUDOCS 9312010269 | |
| Download: ML20058A862 (4) | |
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Tennessee Valley Autt&ty. Pos? Office Dox 2000. Soddy-Da$y. Tieweessee 37379 2000 Robert A. Fenech
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vce Pror.. dent. Secpoyah Nuclear Plant i
November 18, 1993 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 SEQUOYAH NUCLEAR PLANT (SQN) - UNITS 1 AND 2 - FACILITY OPERATING l
LICENSES DPR-77 AND DPR TECHNICAL SPECIFICATION (TS) 3.7.12 SPECIAL REPORT 93-22 The enclosed special report provides details concerning two fire barriers that were nonfunctional for a period of time greater than the TS allowable timeframe. This report is being submitted in accordance with-l TS 3.7.12 Action Statement (a).
If you have any questions concerning this submittal, please telephone C. H. Whittemore at (615) 843-7210.
Sincerely,
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Robert A. Fenech 1
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' Enclosure cc: See page 2 i
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9312010269 931las Z6 2.1. I PDR ADOCK 05000327; s
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U.S. Nuclear' Regulatory Commission Page 2 November 18, 1993 cc (Enclosure):
Mr. D. E. LaBarge, Project Manager U.S. Nucicar 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
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e-e ENCLOSURE SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 SPECIAL REPORT 93-22 l
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FIRE BARRIER DOOR A-156A Dgantiption of CondiliDD On October 26, 1993, with Unit 1 in Mode 5 coming out of a refueling outage (Unit 1 Cycle 6) and Unit 2 in Mode 3 coming out of a maintenance outage, Fire Barrier Door A-156A was breached.
Door A-156A is a roll-down fire barrier accessing the Unit I reactor building access room from the refueling floor on Elevation 734.0 in.
the auxiliary building.
The door was breached to permit temporary electrical cables to be routed from an existing card reader near the Unit 1 steam generator blewdown room (A-10) to the Unit i reactor access room for temporary installation of a personnel card-reader device. The card readers are used for personnel accountability of workers entering Unit 1 containment during the outage.
The door will be breached in excess of the technical specification (TS) allowable timeframe and is expected to be returned to a f unctional status in December 1993.
CarrentiYr_ Action _
In accordance with Limiting Condition for Operation (LCO) 3.7.12 Action Statement (a), the operability of the fire detectors on one side of the breach was verified, and an hourly fire watch was-established and will be maintained until the barrier is restored to a functional status.
This condition is being reported in accordance with TS Action Statement 3.7.12.a.
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FIRE BARRIER DOOR A-193 Description _of_Condillon On October 25, 1993, with Unit 2 in Mode 3 coming out.of a maintenance outage, Fire Barrier Door A-193 was breached. Fire Door A-193 connects the 2A and 2B 480-volt (V) board rooms on Elevation 749.0 of the. auxiliary building.- The door was breached open to allow the 2A 480-V board room air-conditioning unit to cool the 2B 480-V board' room because the 2-B board room' air-conditioning.
room chiller was out of service for maintenance. The door was-breached.in excess of the TS allowable timeframe and was returned to.
a functional status November 7, 1993.
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CQIIective Ac. tion In accordance with LCO 3.7.12 Action Statement (a), the operability, of the fire detectors'on one side of the breach was verified, and an hourly' fire watch was established and maintained until the barrier was restored to a functional status.
This condition is being reported in accordance with TS Action Statement 3.7.12.a.
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