ML17304A333

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Responds to NRC Re Unresolved Item Noted in Insp Repts 50-528/88-06.Util Has Revised Fire Protection Equipment Testing & Maint for Power Block Procedure to Maintain Supervisory Air Pressure Setting Per Mfg
ML17304A333
Person / Time
Site: Palo Verde Arizona Public Service icon.png
Issue date: 07/26/1988
From: Karner D
ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To: Martin J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
102-00885-DBK-T, 102-885-DBK-T, NUDOCS 8808110052
Download: ML17304A333 (6)


Text

ACCELZRATED DISTRIBUTION DEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8808110052 DOC.DATE: 88/07/26 NOTARIZED: NO DOCKET FACIL:STN-50-528 Palo Verde Nuclear Station, Unit 1, Arizona Publi 05000528 STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH.NAME AUTHOR AFFILIATION KARNER,D.B.

Arizona Nuclear Power Project (formerly Arizona Public Serv RECIP.NAME RECIPIENT AFFILIATION MARTIN,J.B.

Region 5, Ofc of the Director

SUBJECT:

Responds to NRC 880414 ltr re unresolved item noted in Insp Repts 50-528/88-06,50-529/88-06

& 50-530/88-06.

DISTRIBUTION CODE: IEOID COPIES RECEIVED:LTR g ENCL L SIZE: k.

TITLE: General (50 Dkt)-Insp Rept/Notice of Violation Response NOTES:Standardized plant.

Standardized plant.

Standardized plant.

05000528 05000529 05000530 j RECIPIENT ID CODE/NAME PD5 PD DAVIS,M INTERNAL: ACRS DEDRO t

NRR/DLPQ/PEB 11 NRR/DOEA DIR 11 NRR/DREP/RPB 10 NRR/PMAS/ILRB12 0

0 I-EBB,J 02 RES/DSR DEPY EXTERNAL: LPDR NSIC NOTES COPIES LTTR ENCL RECIPIENT ID CODE/NAME LICITRA,E AEOD NRR MORISSEAU,D NRR/DLPQ/QAB 10 NRR/DREP/EPB 10 NRR/DRIS DIR 9A NUDOCS-ABSTRACT OGC/HDS1 RES/DSIR DEPY RGN5 FILE 01 NRC PDR COPIES LTTR ENCL 8l A

TOTAL NUMBER OF COPIES REQUIRED:. LTTR 29 ENCL

Arizona Nuclear Power Project P.O. BOX 52034

~

PHOENIX. ARIZONA85072-2034 1

02-00888)Bkkl89KLRQ,'uly 26, 1988 Hr. J.

B. Hartin, Regional Administrator U.

S. Nuclear Regulatory Commission 1450 Haria Lane, Suite 210 Walnut Creek, CA 94596-5368

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 1

Docket No.

STN 50-528 (License NPF-41)

Response

to NRC Unresolved Item 528/88-06-01 File:

88-019-026

Reference:

Letter from R. J.

Pate, NRC, to E.

E.

Van Brunt, Jr.,

ANPP, dated Harch 14, 1988;

Subject:

NRC Inspection of Palo Verde Units 1, 2

and 3 (50-528, 529, 530/88-06)

Dear Sir:

Results of the unannounced inspection conducted by Hr. C.

Ramsey, of your

staff, on February 1 through February 5,
1988, documented in the referenced letter, identified NRC Unresolved Item 528/88-06-01.

Unresolved Item 528/88-06-01 pertains to functional discharge testing of the largest capacity Pre-Action Fire Suppression System installed in Unit 1.

ANPP stated that this testing would be scheduled and performed at a later date and the results documented for Region V to review.

Hr. Ramsey's

concern, which led to the request for the functional discharge
testing, was that the increased (greater than manufacturer recommendation) supervisory air pressure in the system may delay the time associated with water reaching the most remote sprinkler head following activation of the pre-action valve.

ANPP has revised the "Fire Protection Equipment Testing and Haintenance for the Power Block" procedure to maintain the supervisory air pressure setting at 15-25 psig as recommended by the manufacturer.

ANPP believes this action resolves Hr. Ramsey's concern and therefore will not be performing the requested functional discharge testing of the Pre-Action Fire Suppression System.

If you should have any questions regarding this information contact Hr.

Timothy Shriver of my staff at (602) 393-2521.

Very truly yours, 3808110052 880726 PDR ADOCK 05000528 Q

PDC DBK/TDS/KLHC/kj Donald B. Karner Executive Vice Pr'esident Project Director I EQT

Hr. J.

B. Hartin Page 2

cc:

E.

E.

Van Brunt, Jr.

J.

G.

Haynes E. A. Licitra T. J.

Polich C.

Ramsey A. C.

Gehr