ML17299A437

Application for Amend to License NPF-41,revising Tech Specs to Permit Maint of Plant in Hot Standby for Addl 72 H in Order to Determine Source of RCS Leak & to Obtain RCS Inventory Data.Request one-time Emergency Change

ML17299A437
Person / Time
Site:	Palo Verde
Issue date:	07/12/1985
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Knighton G Office of Nuclear Reactor Regulation
Shared Package
ML17299A438	List: ML17299A437 ML17299A439
References
ANPP-33008-EEVB, TAC-59245, NUDOCS 8507170283
Download: ML17299A437 (3)

Text

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~ A ACCESSION NBRi 8507170283-. DOC>> DATE: 85/07/12- NOTARIZED j NO POCKET FACIL:STN 50 528 Palo Verde Nuclear Stations Unit ii Arizona Publi 05000528 AUTH ~ NAME, AUTHOR AFFILIATION VAN.BRUNTrE>>E>> Arizona Public; Service Co.

RECIP ~ NAME RECIPIENT, AFFIL'IATION KNIGHTONiG ~ Licensing Branch Application for" amend to License NPF 41irevising Tech 3'UBJECT:

gpebs'n toI permit maint of plant in hot: standby for addi 72

,to deter mine source of RCS,lehk 8 to obtain RCS h'rder inventory data ~ Request one time'mergency change.'ISTRIBUTION CODE! A001D COPIES RECEI/ED;LTR ENCL SIZE'0 W Oe WW &W M % IIIW TITLE'. OR'ubmittal! General Distribution NOTESjStandar dized plant". 05000528 OLi12'/31/84 RECIPIENT COPIFS RECIPIENT COPIES ID CODE/NAME< LTTR ENCL>> ID CODE/NAME LTTRi ENCL" NRR LB3. BC 01 7 7 INTERNAL) ACRS 09 6 e ADM/LFMB 0 ELD/HDS3 1 0 NRR'/DF/MTEB 1 1 NRR'/DL DIR 1 NRR/DL/DRAB 1 ~

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Arizona Nuclear Power Project P.OBOX 52034 ~ PHOENIX, ARIZONA 85072-2034 ANPP-33008-EEVBJr Director of Nuclear Reactor Regulation July 12, 1985 ATTN: Mr. George Knighton, Chief Licensing Branch No. 3 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS) Unit 1 Request for Emergency Technical Speci'fication Change Docket No. STN 50-528 (License NPF-41)

File: 85-056-026; G.1.01.10

Dear Mr. Knighton:

This letter is provided to request an emergency Technical Specification change to PVNGS Unit 1 Technical Specification 3.4.5.2 and a suspension of the pre-noticing requirement of 10CFR 50.91.

On July ll, 1985 PVNGS Unit 1 determined a reactor coolant system unidentified leakage of 1.2 gpm, which is above the LCO of 1 gpm.

Technical Specification 3.4.5.2 action statement "b" was entered into and the plant was taken to hot standby shortly thereafter. At this time, the unidentified leakage has not been resolved, requiring the plant to be in cold shutdown within thirty hours. The surveillance requirements have been increased to at least once per eight hours.

Since PVNGS Unit 1 is in the early startup testing phase there is very low activity in the primary loop. The current RCS activity is 2.09E-2 mci/cc.

We request a one time Technical Specification change to allow maintaining the plant in hot standby for an additional 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. This time extension request is to: (1) allow additional time to determine the leak source prior to entering cold shutdown and (2) to take additional RCS inventory data to verify our RCS inventory calculations. If the unidentified leakage is determine to increase to greater than 2 gpm within the requested 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> time extension, PVNGS will procede directly to cold shutdown.

Appropriate fees will be provided in a follow"up letter.

Sincerely, 8507i70283 850 7i2 0528 pDR ADO'~ 0~ pop' E. E. Van Brunt, xecutive Vice President Project Director EEVB:WFQ:jdf cc: A. C. Gehr R. P. Zimmerman E. A. Licitra C. Tedford (ARRA)