ML17194B622

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Forwards Safety Evaluation Supporting Util 830425 Request to Extend Deadline for Cycle 8 Confirmatory Calculations of MAPLHGR Fuel Rod Internal Pressure & Fuel Centerline Temp
ML17194B622
Person / Time
Site: Dresden Constellation icon.png
Issue date: 07/07/1983
From: Crutchfield D
Office of Nuclear Reactor Regulation
To: Farrar D
COMMONWEALTH EDISON CO.
Shared Package
ML17194B623 List:
References
LSO5-83-07-008, LSO5-83-7-8, NUDOCS 8307080306
Download: ML17194B622 (3)


Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 Docket No. 50-249 LSOS-83-07-008 Mr. Dennis L. Farrar Director of Nuclear Licensing Commonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690

Dear Mr. Farrar:

July 7, 1983

SUBJECT:

EXTENSION OF DEADLINE FOR CONFIRMATORY CALCULATIONS REQUIRED BY THE CYCLE 8 RELOAD SER Dresden Nuclear Power Station, Unit No. 3 In a letter dated April 25, 1983 Commonwealth Edison Company (CECO) provided information in response to a requirement in the Dresden Unit No. 3 Cycle 8 Reload SER that confirmatory calculations of MAPLHGR, fuel rod internal pressure and fuel centerline temperature be provided prior to ENC bundle exposures exceeding 10,000 MWd/MT.

This infor-mation, as well as other data furnished in the above submittal, has been evaluated by the staff which has determined that CEC0 1 s request

.to extend the deadline for Cycle 8 confirmatory calculations is acceptable with no safety impact to the remaining operation of Cycle 8.

CECo will be required, however, to perform these calculations with fully acceptable methods prior to reaching 15,000 MWd/MT or Cycle 9 startup, whichever occurs first.

The staff's Safety Evaluation documenting the review of this issue is enclosed.

Enclosure:

Safety Evaluation' cc w/enclosure:

See next page Sincerely, L m _

11-d--/,L;j Dennis M. Crutc'tl'fiel~ief""

Operating Reactors Branch #5 Division of Licensing

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\\l July 7, 1983 DISTRIBUTION Docket r

Docket No. 50-249 LS05-83-07-008 NRC PDR Local PDR ORB Reading NSIC DCrutchfield HSmith RGilbert OELD ELJbrdan JMTaylor ACRS ( 10)

Mr. Dennis L. Farrar Director of Nuclear Licensing Commonwealth Edison Company Post Office Box 767 Chica~o. Illinois 60690

Dear Mr. Farrar:

SUBJECT:

EXTENSION OF DEADLINE FOR CONFIRMATORY CALCULATIONS REQUIRED BY THE CYCLE 8 RELOAD SER Dresden Nuclear Power Station, Unit No. 3 In a letter dated April 'es, 1983 Commonwealth Edison Company (CECO) provided information in response to a requirement in the Dresden Unit No. 3 Cycle 8 Reload SER that confirmatory calculations of MAPLHGR, fuel rod internal pressure and fuel centerline temperature(be)provided prior to ENC bundle exposures exceeding 10,000 MWdf~J. This infor-mation. as well as other data furnished in the aboVE:sul>mittal *. has been evaluated by the staff. which has determined that CECo's request to extend the deadli.ne for-tycle 8 confirmatory calculations is acceptable with no safety impact to the remaining operation of Cycle 8.

CECo wil 1 be required, howaver. to perform these ca 1 cul at ions with fully acceptable methods prfor to reaching 15-,000 MWd/MT or Cycle 9 startup. whichever occurs first.

The staff's Safety Evaluation documenting the review of this issue is

  • enclosed.

Enclosure:

Safety Evaluation Sincerely, priginal signed by Oennis-M. Crutchfield, Chief Operating Reactors Branch #5 Division of Licensing cc w/enclosure:

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NRC FORM ~18 (10-80) NRCM 0240 OFFICIAL RE_CORD COPY USGPO: 198~-335-96()

't Mr. Dennis L. Farrar cc Isham, Lincoln & Beale Counselors at Law One First National Plaza, 42nd Floor Chicago, Illinois 60603 Mr. Doug Scott Plant Superintendent Rural Route #1 Morris, Illinois 60450 U.

s~ Nuclear Regulatory Corrmission Resident Inspectors Office Dresden Sta ti on RR #1 Morris, Illinois 60450 Chairman.

Board of Supervisors of Grundy County Grundy County Courthouse Morris, Illinois 60450 U. S. Environmental Protection Agency Federal Activities Branch Region V Office ATTN:

Regional Radiation Representative 230 South Dearborn Street Chicago, Illinois 60604 James G. *K-eppler, Regional Administrator Nuclear Regulatory Conmlssion, Region IIi 799 Roosevelt Road Glen E1lyn, Illinois 60137 Mr. Gary N. Wright, Manager Nuclear Facility Safety I 11 i noi s Department of Nuclear Safety 1035 Outer Park Drive, 5th Floor Springfield, Illinois 62704 July 7, 1983

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