ML17347B278

Documents Request & Justification Re Discretionary Enforcement to Extend out-of-svc Time for Containment Spray Pump 4A.Containment Spray Pump Refurbished During Last Unit 4 Refueling Outage & Testing Showed Acceptable Performance

ML17347B278
Person / Time
Site:	Turkey Point
Issue date:	08/09/1989
From:	Woody C FLORIDA POWER & LIGHT CO.
To:	Ebneter S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
L-89-292, NUDOCS 8908280088
Download: ML17347B278 (6)

Text

gcCPMRATED DISJ'KBUTION DEMONSTRATlON SYSTEM Q

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) REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8908280088 DOC.DATE: 89/08/09 NOTARIZED: NO DOCKET g FACIL:50-250 Turkey Point Plant, Unit 3, Florida Power and Light C 05000250 50-251 Turkey Point Plant, Unit 4, Florida Power and Light C 05000251 AUTH. NAME AUTHOR AFFILIATION WOODY,C.O. Florida Power & Light Co.

RECIP.NAME RECXPIENT AFFXLIATION EBNETER,S.D. Region 2, Ofc of the Director

SUBJECT:

Documents request & justification re discretionary enforcement to extend out of svc time for CSP 4A.

DISTRIBUTION CODE: IEOID COPIES RECEIVED:LTR TITLE: General (50 Dkt)-Insp Rept/Notice of Vio ENCL ation Q

Response

SIZE:

NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 PD 1 1 EDISON,G 1 1 XNTERNAL: AEOD 1>> 1 AEOD/DEIIB 1 1 AEOD/TPAD 1 1 DEDRO 1 1 LOIS,ERASMIA 1 1 NRR SHANKMAN,S 1 1 NRR/DEST DIR 1 1 NRR/DLPQ/PEB 1 1 NRR/DOEA DIR 11 1 1 NRR/DREP/EPB 10 1 1 NRR/DREP/RPB 10 2 2 NRR/PMAS/ILRB12 1 1 NUDOCS-ABSTRACT 1 1 OEMXZBERMAN,J 1 1 OGC/HDS2 1 1 C5'ZS PILE Om 1 1.

RES MORISSEAU,D 1 1 RGN2 FILE 01 1 1 EXTERNAL: LPDR 1 1 NRC PDR 1 1 NSIC 1 1 TOTAL NUMBER OF COPIES REQUIRED: LTTR 24 ENCL 24

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I v 1 P.O. Bo ...00,Juno Beach, FL 33408-0420 89f~UGI5 ~IO.: Z5 AUGUSTi 9 198S L-89-292 Mr. Stewart D. Ebneter Regional Administrator, Region U. S. Nuclear Regulatory Commission II 101 Marietta St., N.W., Suite 2900 Atlanta, GA 30323

Dear Mr. Ebneter:

Re: Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 4A Containment Spray Pump Re est for Discretiona Enforcement On August 9, 1989, during discussions with the NRC Region II Staff, Florida Power & Light Company (FPL) requested NRC approval to extend the allowed out of service time for the 4A containment spray pump. The NRC subsequently -approved discretionary enforcement for a 48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> period. The purpose of this letter is to document FPL's request and the justification for the discretionary enforcement, as well as to identify the circumstances which led to the discretionary enforcement.

The 4A containment spray pump had been refurbished during the last Unit 4 refueling outage and subsequent testing showed acceptable performance. The results of the May 30, 1989 monthly surveillance test, however, showed an increase in shaft vibration into the alert range, and as a result, the frequency of testing was increased.

On August 8, 1989, at 9:30 a.m., the pump was taken out of service for balancing and alignment. Following this activity, the pump was retested. The testing identified vibration beyond the acceptance criteria and the pump was declared inoperable. An event response team (ERT) was formed and actions were taken to restore the pump to service. The ERT concluded that motor replacement was required and that insufficient time remained in the allowed out of service period to accomplish the replacement. The repairs were expected to take 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and six ~additional hours were needed for testing.

Because the required spare parts for the motor replacement were available, management was confident that the repairs could be completed and the pump tested within an additional 48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> period.

Accordingly, following a review of the safety aspects of the situation, a decision was made to request NRC approval of an extension of the allowed out of service time.

8908280088 8yO8OP PDR ADOCK (>~~P002~O p pDc an FPL Group company

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Mr. Stewart D. Ebneter L-89-292 Page two Extending the allowed .out of service time from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 72 hours is considered acceptable for the following reasons:

The 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> time period is consistent with industry practice as evidenced by the requirements of the Standard Technical Specification for Westinghouse Pressurized Water Reactors (NUREG-0452, draft Rev. 5). Specification 3.6.2.1 allows one of two containment spray systems to be inoperable for a period of seven days before shutdown is required provided other containment cooling components are operable.

2 ~ The Final Draft of the Turkey Point Revised Technical Specifications issued by the NRC on March 14, 1989 provides a 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> allowed out of service time. This specification was included in our June 5, 1989 license amendment request to adopt the revised technical specifications.

3. Before taking the 4A containment spray pump out of service for maintenance, the 4B containment spray pump was tested to demonstrate operability as required by existing Technical Specification 3.4.2.b.2. The pump results were satisfactory.

4. During the 48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> extension, the three emergency containment coolers and the 4B containment spray pump will not be taken out of service for maintenance.

FPL appreciates the prompt consideration given by the NRC Residents and the Region II and Headquarters Staffs in this matter.

Very truly yours, C. 0. Woody Acting Senior Vice President Nuclear COW/PLP/gp cc: Document Control Desk, USNRC Senior Resident Inspector, USNRC, Turkey'oint Plant

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