ML18009A362

Forwards Response to NRC Bulletin 89-003, Potential Loss of Required Shutdown Margin During Refueling Operations. Fuel Handling Procedure Has Been Revised to Reflect Westinghouse Guidelines to Assure Adequate Shutdown Margin Maintained

ML18009A362
Person / Time
Site:	Harris
Issue date:	01/26/1990
From:	Cutter A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-89-003, NLS-90-025, NUDOCS 9002080023
Download: ML18009A362 (4)

Text

ACCELERATED ITRJBUTION DEMONSTITION SYSTEM'EGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9002080023 DOC.DATE: 90/01/26 NOTARIZED: YES DOCKET FACIL:50-400 Shearon Harris Nuclear Power Plant, Unit 1, Carolina 05000400 AUTH.NAME AUTHOR AFFILIATION CUTTER,A.B.

Carolina Power

& Light Co.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Forwards response to NRC Bulletin 89-003, "Potential Loss of Required Shutdown Margin During Refueling Operations."

DISTRIBUTION CODE:

IE29D COPIES RECEIVED:LTR Z ENCL 2 SIZE:

TITLE: Bulletin 89-03,Potential Loss of Require Shutdown Margin During Refu NOTES:Application for permit renewal filed.

05000400 RECIPIENT

. ID CODE/NAME PD2-1 LA BECKER,D INTERNAL: AEOD/DOA KOPP,LARRY NRR/DET/ECMB 9H NRR/DOEA/OEAB11 NRR/DREP/PEPB9D RRQPMAS~'hPJ312 REG FILE 0 GN2 FILE 01 EXTERNAL: LPDR NSIC COPIES LTTR ENCL 1

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1 RECIPIENT ID CODE/NAME PD2-1 PD AEOD/DSP/TPAB LABARGE,DAVE NRR/DET/EMEB9H3 NRR/DOEA/OGCB11 NRR/DST 8E2 NUDOCS-ABSTRACT RES/DSIR/EIB NRC PDR COPIES LTTR ENCL 1

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1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) TO ELIMINATEYOUR NAMEFROM DISTRIBUTION LISIS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED:

LTTR 22 ENCL 21

CML

~ Caroiina Power 8 Light Company P.O. Bex 1551

~ Rareigh. N.C. 27602 JAN 26 1990 A. 8 CUTTER Vice President Nuclear Services Department United States Nuclear Regulatory Commission ATTENTION: Document Control Desk Washington, DC 20555 SERIAL:

NLS-90-025 10CFR50.

SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO. 50-400/LICENSE NO. NPF-63

RESPONSE

TO NRC BULLETIN 89-03 Gentlemen:

Carolina Power

& Light Company (CP&L) hereby responds to NRC Bulletin 89-03, "Potential Loss of Required Shutdown Margin During Refueling Operations," for the Shearon Harris Nuclear Power Plant, (SHNPP).

The Bulletin requested that licensees take specific actions to prevent potential violations of required shutdown margin and inadvertent criticality during refueling caused by improper movement and placement of highly reactive fuel during refueling operations.

The SHNPP response to the specific actions requested by this Bulletin is attached.

Please refer any questions regarding this submittal to Mr. John Eads at (919) 546-4165.

Yours very tr y,

rgyJ JHE/jhe Attachment A. B. Cutter, having been first duly sworn, did depose and say that the information contained herein is true and correct to the best of his information, knowledge and belief; and the sources of his information are

officers, employees, contractors, and agents of Carolina Power

& Light Company.

My commission expires:

7//2./9V 5'002080023 ar00L26 PDR ADOCK 05000400 PDC 5, ir~~

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Document Control Desk NLS-90-025 / Page 2

cc:

Mr. R. A. Becker Mr. S.

D. Ebneter Mr. J.

E. Tedrow

RESPONSE

TO SPECIFIC ACTIONS OF NRC BULLETIN 89-03 "POTENTIAL LOSS OF REQUIRED SHUTDOWN HARGIN DURING REFUELING OPERATIONS" Action No 1 - Assure that any intermediate fuel assembly configuration (including control rods) intended to be used during refueling is identified and evaluated to maintain sufficient refueling boron concentration to result in a minimum shutdown margin of approximately 58.

shuffle.

During the loading scheme, the only planned deviation, "intermediate fuel configuration," is temporarily placing the two source assemblies in front of the detectors.

Planned intermediate configurations are performed in conformance with the Westinghouse core loading guidelines.

Action No 2 - Assure that fuel loading procedures only allow those intermediate fuel assembly configurations that do not violate the allowable shutdown margin and that these procedures are strictly adhered to.

SHNPP Res onse SHNPP utilizes a fully off-loaded core to perform the reload shuffle.

The fuel handling procedure, FHP-014, "Fuel and Insert Shuffle Sequence,"

has been revised to reflect Westinghouse guidelines to assure adequate shutdown margin is maintained during refueling operations.

Action No 3 - Assure that the staff responsible for refueling operations is trained in the procedures recommended in Item 2 above and understand the potential consequences of violating these procedures.

This training should include the fundamental aspects of criticality control with higher enriched fuel assemblies.

SHNPP Res onse

- The SHNPP refueling is performed by licensed operators in accordance with FHP-014.

The licensed operators are routinely trained on this fuel handling procedure.

This training will include instruction on the potential consequences of violating this procedure and will include the fundamental aspects of criticality control with higher enriched fuel.

assemblies.