ML20206G513

Approves Change of Completion Date for Implementation of Thermo-Lag Fire Barrier Corrective Actions at Plant from End of April 1999 Limerick Unit 2 RFO to 990930

ML20206G513
Person / Time
Site:	Limerick
Issue date:	05/03/1999
From:	Collins S NRC (Affiliation Not Assigned)
To:	Hagan J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
References
TAC-MA5224, TAC-MA5225, NUDOCS 9905100040
Download: ML20206G513 (4)

Text

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o ua y- 4* UNITED STATES E #

NUCLEAR REGULATORY COMMISSION WASHINGTON, D.c. 30886-0001

\*****f May 3, 1999 Mr. Joseph J. Hagan Senior Vice President, Nuclear Operations, MC 62C-3 PECO Energy Company Nuclear Group Headquarters Correspondence Control Desk P.O. Box No.195 Wayne, PA 19087-0195

SUBJECT:

LIMERICK GENERATING STATION, UNITS 1 AND 2, EXTENSION OF THE COMPLETION DATE OF THE CONFIRMATORY ORDER (TAC NOS. MA5224 AND MA5225)

Dear Mr. Hagan:

j' in your letter dated April 12,1999, you requested a change to the Confirmatory Order that modified the licenses of the Limerick Generating Station, Units 1 and 2, to incorporate your commitment to complete implementation of the Thermo-Lag 330-1 fire barrier corrective actions by the end of the April 1999 refueling outage for Limerick Unit 2. The Confirmatory Order modifying License Nos. NPF-39 and NPF-85, dated May 19,1998, was consented to by PECO Energy Company in a letter dated April 27,1998.. In your April 12 letter, you requested that the Confirmatory Order be modified to change the completion date of the Thermo-Lag 330-1 fire barrier corrective actions from the end of the April 1999 refueling outage to September 30,1999.

l The reasons you gave for requesting this change were the unanticipated challenges that arose upon the removal of the existing Thermo Lag 330-1 material and the start of the Darmatt KM-1 designs. As stated in your request, more than 250 interferences (thermal shorts, raceway supports, grounding obstructions, etc.) were identified as requiring resolution. Each interference requires the application of engineering, planning, and craft labor before installation of the Darmatt KM-1 material. In some cases, significant structural modifications were also required.- These issues, along with other unforeseen impediments, resulted in a significant underestimation of 'he effort associated with the design and installation of the Darmatt KM-1.

We note that the Thermo-Lag 330-1 fire barrier corrective actions for 130 of the 138 fire areas at Limerick Units 1 and 2 will be completed by the end of the April 1999 refueling. Current and/or enhanced compensatory measures will be maintained until the completion of the

. corrective actions associated with the remaining eight fire areas.

On the basis of the information you have provided, I approve the change of the completion date for implementation of the Thermo-Lag fire barrier corrective actions at Limerick Units 1 g and 2 from the end of the April 1999 Limerick Unit 2 refueling outage to September 30,1999.

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e J.Hagan If you have any questions concoming this letter, please contact the U.S. Nuclear Regulatory Commission (NRC) Project Manager, Bartholomew C. Buckley, at 301-415-1483.

In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter will be placed in the NRC Public Document Room.

Sincerely,

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Collins, Director Office of Nuclear Reactor Regulation Docket Nos. 50-352 and 50-353 l

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L. . l J.Hagan May 3, 1999 ll If you have any questions concoming this letter, please contact the U.S. Nuclear Regulatory Commission (NRC) Project Manager, Bartholomew C. Buckley, at 301-415-1483.  ;

In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter will be placed in the NRC Public Document Room.

lll Sincerely, ORIGINAL SIGNED BY:

Samuel J. Collins, Director  ;

Office of Nuclear Reactor Regulation i Docket Nos. 50-352 and 50-353 l

DISTRIBUTION: j omsma.

PUBLIC '

PDl-2 R/F S. Collins /R. Zimmerman B. Sheron' l '

'J. Zwolinski/S. Black E. Adensam J. Clifford V. Dricks -

M. O'Brien -

B. Buckley.

OGC

- G. Hill (4 copies)

ACRS SECY >

G. Shear A. Blough, RI 1

DOCUMENT NAME: P;\ORD5224.WPD *Previously Concurred  !

To receive a copy of this document, indicate in the box: "C" = Copy without attachment / enclosure "E" = Copy with rttachment/ enclosure "N" = No copy 0FFICE Mt: POI 2 ' p >rftl E LA POI 2 , M bl TECH EDITOR

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Limerick Generating Station, Units 1 & 2 1

J. W. Durham, Sr., Esquire Chief-Division of Nuclear Safety Sr. V.P. & General Counsel PA Dept. Of Environmental Resources PECO Energy Company P.O. Box 8469 2301 Market Street Harrisburg, PA 17105-8469 Philadelphia, PA 19101 Director-Site Engineering Manager-Limerick Licensing,62A-1 Limerick Generating Station PECO Energy Company P.O. Box A 965 Chesterbrook Boulevard Sanatoga, PA 19464 Wayne, PA 19087-5691 Manager-Experience Assessment Mr. James D. von Suskil, Vice President Limerick Generating Station Limerick Generating Station P.O. Box A Post Office Box A Sanatoga, PA 19464 Sanatoga, PA 19464 Library Plant Manager U.S. Nuclear Regulatory Commission Limerick Generating Station Region I <

P.O. Box A 475 Allendale Road Sanatoga, PA 19464 King of Prussia, PA 19406 Regional Administrator, Region i Senior Manager-Operations U.S. Nuclear Regulatory Commission Limerick Generating Station 475 Allendale Road P.O. Box A King of Prussia, PA 19406 Sanatoga, PA 19464 Senior Resident inspector Dr. Judith Johnsrud U.S. Nuclear Regulatory Commission National Energy Committee Limerick Generating Station Sierra Club P.O. Box 596 433 Orlando Avenue Pottstown, PA 19464 State College, PA 16803 Director-Site Support Services Limerick Generating Station P.O. Box A Sanatoga, PA 19464 Chairman Board of Supervisors of Limerick Township 646 West Ridge Pike Linfield, PA 19468 1

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