ML17348A431

Documents Written & Verbal Request of Region II Personnel for Temporary Waiver of Compliance of Tech Spec 3.4.2.b.1 Re Allowable Out of Svc Time for One Emergency Containment Cooler from 24 H to 72 Hr W/Addl Reasons

ML17348A431
Person / Time
Site:	Turkey Point
Issue date:	07/05/1990
From:	Harris K FLORIDA POWER & LIGHT CO.
To:	Ebneter S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
L-90-251, NUDOCS 9007260110
Download: ML17348A431 (5)

Text

ACCELERATED DI RIBUTION DEMONST TION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9007260110 DOC.DATE: 90/07/05 NOTARIZED: NO DOCKET FACIL:50-251 Turkey Point Plant, Unit 4, Florida Power and Light C 05000251 AUTH. NAME AUTHOR AFFILIATION HARRIS,K.N. Florida Power & Light Co.

RECIP.NAME RECIPIENT AFFILIATION EBNETER,S.D. Region 2, Ofc of the Director

SUBJECT:

Documents written & verbal request of Region II personnel for temporary waiver of compliance of Tech Spec 3.4.2.b.1.

DISTRIBUTION CODE: IE06D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Environ & Radiological (50 DKT)-Insp Rept/Notice of Violation Respons S NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL

'PD2-2 LA PD2-2 PD EDISON,G INTERNAL: AEOD/ANDERSON, R AEOD/DSP'MSS/LLOB 1

COLLINS,D RGN 2 5E4 1 NMSS/SGDB 4E4 NRR/DLPQ/LPEB10 1 NRR/DOEA/OEAB11 NRR/DREP/PRPB1 1 2 NRR/PMAS/ILRB12 NUDOCS-ABSTRACT 1 0 OGC/HDS2 1 EG FI 02 RES 1 N RSS/RPB RGN2 FILE 01 1 RGN4 MURRAY,B EXTERNAL: EG&G SIMPSON,F LPDR NRC PDR NSIC R

D D

D NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 26 ENCL

p.0. Box14000, Juno Beach, FL 33408.0420

~$ : ~~

JUL 05 1990 L-90-251 10 CFR 50 Stewart D. Ebneter Regional Administrator, Region II U. S. Nuclear Regulatory Commission 101 Marietta St., N.W., Suite 2900 Mr. Stewart D. Ebneter:

Re: Turkey Point Unit 4 Docket No. 50-251 4A Emergency Containment Cooling Unit Tem orar Waiver of Com liance This letter documents a written and verbal request of Region II personnel for a temporary waiver of compliance of Technical Specification 3.4.2.b.l.

During the evening of July 4, 1990, during a flow test of the 4A Emergency Containment Cooler (ECC), inadequate Component Cooling Water flow was indicated and the cooler was declared out of service at 1900 hours0.022 days <br />0.528 hours <br />0.00314 weeks <br />7.2295e-4 months <br />. In accordance with Technical Specification 3.4.2.b.l a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Limiting Condition for Operation (LCO) was entered. An event response team was formed and trouble shooting and appropriate repairs were begun'he actuator on the 4A Emergency Containment Cooler component cooling water discharge valve (CV-4-2907) was found to operate with no resultant operation of the valve. The operator has been removed and the shear pin between the valve and the operator has been found sheared. The manufacturer of the valve was contacted and identical material for the pin identified. Identical material is not available at Turkey Point but appropriate material with similar properties has been found. An engineering evaluation providing technical basis for the use of the similar pin material will be completed prior to the return of the valve to service. The repairs to the valve and subsequent post maintenance testing are expected to be complete within a few hours of 1900 on July 5, 1990.

The design basis for Emergency Containment cooling provides for adequate cooling with one containment spray train or two ECCs.

With two ECCs still operable and two trains of spray available the capability of the Containment Cooling Systems to perform their function during an accident will be adequate.

9007260110 90070':-

PDR ADOCK 0-0002 1 P PDC an FPL Group company OFFICIAL COPY

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I Based upon the above, FPL is requesting a temporary waiver of compliance of the allowable out of service time for one ECC from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> with the following additional reasons:

1. The 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> LCO is consistent with the final draft of Turkey Point revised Technical Specification 3.6.2.2 Action:

"a. With one of the above required emergency containment cooling units inoperable restore the inoperable cooling unit to OPERABLE status with in 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />."

2. During the 48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> extension, the remaining two ECCs and the two trains of containment spray will not be taken out of service for maintenance.

3. The 4B and 4C ECCs were run to prove their operability prior to performing maintenance on the 4A ECC.

Following review by the Plant Nuclear Safety Committee, approval of this document was recommended to the Plant Manager. The Plant manager subsequently approved this document.

Very truly yours, K. . Harris Vic President Turkey Point Nuclear KNH/JEK/jk cc: Document Control Desk, USNRC Dr. G. E. Edison, Project Manager, NRR, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant