ML17312A653

Informs That Util Intends to Raise Active Portion of Assembly Up to within Eight Feet of Surface in Order to Ensure Sufficient Clearance Below Fuel Assembly During Movement

ML17312A653
Person / Time
Site:	Palo Verde
Issue date:	04/03/1996
From:	Bailey J ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
102-03644-JAB-S, 102-3644-JAB-S, NUDOCS 9604080307
Download: ML17312A653 (6)

Text

CATEGORY 1 REGULATLIi'NFORMATIONDISTRIBUTIONOZSTEM (RIDE)

ACCESSION NBR:9604080307 DOC.DATE: 96/04/03

,NOTARIZED: NO DOCKET I FACIL:STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 AUgH. NAME AUTHOR AFFILIATION BAILEYFJ,A.

Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFiLIATION Document Control Branch (Document Control Desk)

SUBJECT:

Informs that util intends to raise active portion of assembly up to within eight feet of surface in order to ensure sufficient clearance below fuel assembly during movement.

DISTRIBUTION CODE:

A001D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: OR Submittal:

General Distribution NOTES:Standardized plant.

05000529 RECIPIENT ID CODE/NAME PD4-2 LA THOMAS,C INTERQAL: ACRS NRR/DE/EMCB NRR/DSSA/SPLB NUDOCS-ABSTRACT EXTERNAL: NOAC COPIES LTTR ENCL 6

1 1

1 RECIPIENT ID CODE/NAME PD4-2 PD FILE CE57E RR7DRCH7HXCB NRR/DSSA/SRXB OGC/HDS2 NRC PDR COPIES LTTR ENCL 1

1 1

1 0

R Y

D C

N NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTEl CONTACT THE DOCUMENT CONTROL DESK, ROOM OWFN 5D-5(EXT. 415-2083)

TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL 'NUMBER OF COPIES REQUIRED:

LTTR 18 ENCL

JACK A. BAILEY VICE PRESIDENT ENGINEERING Arizona Public Service Company PALO VERDE NUCLEAR GENERATING STATION P.O. BOX52034

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PHOENIX, ARIZONA85072-2034 102-03644-JAB/SAB/GAM April 3, 1996 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-37 Washington, DC 20555-0001

References:

1.

Letter 102-03642, dated April 1, 1996, Proposed Amendment to Technical Specification (TS) Section 3/4.9.6, "Refueling Machine,"

Under Emergency Circumstances, from W. L. Stewart, Executive Vice President - Nuclear, APS, to USNRC Letter 102-03643, dated April 3, 1996, Supplement to Proposed Amendment to Technical Specification (TS)

Section 3/4.9.6, "Refueling Machine," Under Emergency Circumstances, from J. A.

Bailey, Vice President - Engineering, APS, to USNRC

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 2 Docket No. STN 50-529 Supplement No. 2 to Proposed Amendment to Technical Specification (TS) Section 3/4.9.6, "Refueling Machine," Under Emergency Circumstances In the Reference 1 letter, Arizona Public Service Company (APS) submitted a proposed Technical Specification (TS) amendment to revise PVNGS Unit 2 TS 3/4.9.6 to temporarily allow the use of a manual hoist instead of the refueling machine for the movement of the fuel assembly at core location A-07.

In the Reference 2 letter, APS provided responses to NRC questions related to their review of the proposed amendment.

In both referenced letters, APS describes that the manual hoist would be physically limited from raising the fuel assembly above a depth needed to maintain a minimum of nine feet of water above the active portion of the fuel.

However, in order to ensure sufficient clearance below the fuel assembly during movement, APS intends to raise the active portion of the assembly up to within eight feet of the surface if necessary.

Calculations, based upon actual dose rates ofthe assembly at location A-07, identify that the expected dose rate above the water when the assembly is raised to this level would be approximately 0.36 mRem/hr without any additional shielding. This is well below the 2.5 mRem/hr design basis.

9604080307

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U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Supplement No. 2 to Proposed Amendment to Technical Specification 3/4.9.6 Page 2 Should you have any questions, please contact Scott.A. Bauer at (602) 393-5978.

Sincerely, JAB/SAB/GAM/rv cc:

L. J. Callan K; E. Perkins C. R. Thomas K. E. Johnston A. V. Godwin (ARRA)

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