ML20127L089

Advises That Util 920927 Response to NRC Bulletin 92-001, Suppl 1, Failure of Thermo-Lag 330 Fire Barrier Sys, Acceptable

ML20127L089
Person / Time
Site:	Arkansas Nuclear
Issue date:	01/22/1993
From:	Alexion T, Bevan R Office of Nuclear Reactor Regulation
To:	Yelverton J ENTERGY OPERATIONS, INC.
References
IEB-92-001, IEB-92-1, TAC-M83839, TAC-M83840, NUDOCS 9301270011
Download: ML20127L089 (5)

Text

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UNITED STATES

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NUCLEAR REGULATORY COMMISSION o

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/e January 22, 1993 Docket Nos. 50-313 and 50-368 Mr. Jerry W. Yelverton Vice President, Operations ANO Entergy Operations, Inc.

Route 3 Box 137G Russellville, Arkansas 72801 C

SUBJECT:

RESPONSE TO NRC BULLETIN 92-01, SUPPLEMENT 1, " FAILURE OF THERM 0-LAG 330 FIRE BARRIER SYSTEM" (TAC NOS. M83839 AND M83840)

By letter dated September 29, 1992, you provided a response to NRC Bulletin 92-01, Supplement 1, for Arkansas Nuclear One, Units 1 and 2 (ANO-l&2). Your response stated that ANO-1 has no Thermo.-Lag 330 fire barriers. ANO-2, however, does contain such fire barriers, so appropriate compensatory measures have been implemented consistent.with the plant Safety Analysis Report (SAR) requirements for inoperable fire barriers.

You also provided a description of the long-term corrective action to ensure or restore operability.

As discussed in your response, the only application of the Thermo-Lag 330 fire barrier system at ANO is in the AN0-2 service water pump pits.

The service water pump pits are located in the intake structure below elevation 354 feet.

The barriers are pre-formed conduit shapes and panels on two 4-inch condutts.

These conduits are routed along the top of the pits to the "A" and "C" service water pumps. The conduits contain power cables for the pumps.

In accordance with SAR requirements for inoperable fire barriers, you verified the-operability of the fire detectors on at least one side of the affected barriers and posted a roving 1-hour fire watch to monitor the service water pump pits.

Your -response also states that, if th'e ANO-2 installed Thermo-Lag fire barriers are determined to be a concern, the. fire barrier configuration will either be qualified by third-party testing or engineering evaluations, or replaced with appropriate qualified material.

Until the barriers are qualified or replaced, the 1-hour roving fire watch wi'll remain in effect to monitor the service water pump pits.

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Mr. Jerry W. Yelverton We have reviewed your response and find it acceptable.

Please inform us when all corrective actions have been completed.

Further NRC review, if any, will be performed by inspection or audit.

Sincerely, ORIGINAL SIGNED BY:

Roby B. Bevan, Project Manager Project Directorate IV-1 Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation ORIGINAL SIGNED BY:

Thomas W. Alexion, Project Manager Project Directorate IV-1 Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation cc:

See next page DISTRIBUTION:

Docket File NRC & LPDRs PDIV-1 r/f CMcCracken JRoe MVirgilio GHubbard PNoonan RBevan 0GC ACRS (10)

PDIV-1 p/f ABeach, RIV PMadden AMasciatonio TAlexion (2W 0?M b

D/PDI Il LA/PDIV71T PM/PDIV-1 PM/PDIV-34 BC/SPLB 0FC PNoonab7t Tale [ M CMcCracken GHubbard RBevan:pk NAME DATE l/l.0/93 I/lL193 k /l%93

/ //f/93

/ F.2/93 0FFICIAL RECORD COPY Document Name: AR83839.MPA

Mr. Jerry W. Yelverton,.

We have reviewed your response and find it acceptable.

Please inform us when all corrective actions have been completed.

Further NRC review, if any, will be performed by inspection or audit.

Sincerely, ORIGINAL SIGNED BY:

Roby B. Bevan, Project Manager Project Directorate IV-1 Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation ORIGINAL SIGNED BY:

Thomas W. Alexion, Project Manager Project Directorate IV-1 Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation cc: See next page DISTRIBUTION:

Docket File NRC & LPDRs PDIV-1 r/f CMcCracken JRoe MVirgilio GHubbard PNoonan RBevan 0GC ACRS (10)

PDIV-1 p/f ABeach, RIV PMadden AMasciatonio TAlexion f?W C?N b

D/PDII~1 OFC LA/PDIV-hp PM/PDIV-1 PM/PDIVWk_

BC/SPLB NAME PNoonan 7 RBevan:pk Tale [ M CMcCracken GHubbard DATE l /l')/93 I/lLf93

! /l@93

/ //f/93

/ f.2/93 0FFICIAL RECORD COPY Document Name: AR83839.MPA 4

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Mr. Jerry W. Yelverton. ->

i We have reviewed your response and find it acm ptable.

Please inform us when all corrective actions have been completed.

Further NRC review, if any, will

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be performed by inspection or audit.

3-I Sincere l

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RobyB..BIvan, Project _ Manager Project Directorate IV-1 Division of Reactor Projects - III/IV/V Offg e A Nuclear eactor Regulation

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Project Directorate IV-1

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Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation cc; See next page i

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Mr. Jerry W. Yelverton Entergy Operations, Inc.

Arkansas Nuclear One, Units'1 & 2 CC:

- Mr. Donald C. Hintz, President Mr. John R. McGaha and Chief Executive Officer Vice President, Operations Support Entergy Operations, Inc.

Entergy Operations, Inc.

P. O. Box 31995 P. O. Box 31995 l

Jackson, Mississippi 39286 Jackson, Mississippi 39286 l

Mr. Robert B. McGehee Mr. R. A. Fenech Wise, Carter, Child & Caraway General Manager, Plant Operations P. O. Box 651 Entergy Operations, Inc.

Jackson, Mississippi.39205 j

Route 3 Box 137G' Russellville, Arkansas 72801 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations Mr. Nicholas S. Reynolds

- ABB Combustion Engineering Nuclear Power Winston & Strawn 12300 Twinbrook Parkway, Suite 330

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1400 L Street, N.W.

Rockville, Maryland 20852 i

Washington, D.C.

20005-3502 Mr. James J. Fisicaro Mr. Robert B. Borsum Director, Licensing Licensing Representative Entergy Operations, Inc.

B&W Nuclear Technologies Route 3, Box 137G 1700 Rockville Pike, Suite 525 Russellville, Arkansas 72801 l

Rockville, Maryland 20852 Admiral Kinnaird R. McKee, USN (Ret)

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Senior Resident Inspector 214 South Morris Street U.S. Nuclear Regulatory Commission Oxford, Maryland 21654 1 Nuclear Plant Road Russellville, Arkansas 72001 Regional Administrator, Region IV

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U.S. Nuclear Regulatory Commission i

611 Ryan Plaza Drive, Suite 1000

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- Arlington, Texas ;76011 Honorable Joe W. Phillips County Judge of Pope County Pope County Courthouse Russellville, Arkansas 72801-i Ms. Greta Dicus, Director Division of Radiation Control and Emergency Management 4

Arkansas Department of Health

- 4815 West Markham Street-Little Rock, Arkansas- - 72205-3867

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