ML20198A368

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Responds to to Chairman Palladino Re 850722 Auxiliary Feedwater Pump Failure at Plant.Nrc Reviewed Pump Failure Immediately Following Event.Ie Info Notice Being Developed & Maint Program Survey Scheduled
ML20198A368
Person / Time
Site: Turkey Point NextEra Energy icon.png
Issue date: 10/28/1985
From: Harold Denton
Office of Nuclear Reactor Regulation
To: Ward D
Advisory Committee on Reactor Safeguards
Shared Package
ML20197K090 List:
References
FOIA-85-729 NUDOCS 8511010433
Download: ML20198A368 (2)
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EHCLOSURE M g UNITED STATES 8 o NUCLEAR REGULATORY COMMISSION W I wassmorow.o.c.zossa October 28, 1985 Mr. David A. Ward Chairman Advisory Comittee on Reactor Safeguards U.S. Nuclear Regulatory Comission Washington, DC 20555 1-

Dear Mr. Ward:

I have been requested to respond to your letter to Chaiman Palladino dated

! September 20, 1985, in which you expressed the ACRS concerns relating to the recent post-trip failures in the auxiliary feedwater system (AFWS) at the

. Turkey Point Plant, Unit 3. The Comission and staff share your concerns -

i and have placed a high priority on determining the implications of the Turkey

. , Point event. .

N The auxiliary feedwater pump failures on July 22 '1985 were reviewed-by the staff imediately following the event. The significance of the' failures- i was recognized by the staff in reviewing the licensee's restart plans and in )

terms of the generic implications of the event. Follow-up discussions were

held between the staff and the licensee to determine the cause of the )

i failures and the need for corrective actions. These failures were broug1it 'j to the attention of NRC senior management at the Operating Reactors Events  ;

4 Briefing of August 13, 1985. In order to assure that other licensees are ,

I awa're of this comon cause failure potential, an IE Information Notice, I l is being developed. I 0ther staff actions related to the Turkey Point AFW system specifically and l l to AFW systems generally are: )

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! . A special first-of-a-kind inspection was organized by the Office i j

of Inspection and Enforcement during the weeks of August 26-30 l

and September 9-13, 1985 addressing the operational readiness of )

i the Turkey Poin't AFW system. This special inspection was an NRC j j , , ' ~

. inspection initiative resulting from the June 9,1985 event at the Davis-Besse plant. Turkey Point was selected as the initial plant-for this special inspection because of its recent AFW events. We

! are pursuing with Turkey Point the resolution of our specific concerns as outlined in our inspection report; however, the l j findings resulting from this special inspection will be included )

i in the areas the staff has identified as necessary to pursue in evaluating potential generic short term and long ters actions as a l result of the June Davis Besse event. j In addition to the evaluation of generic short ters and long term actions as a result of the June Davis-Besse event, the staff is reviewing past and present requirements for AFW systems and i

evaluating the need for further action for those plants where the reliability of the AFW system should be improved. The staff i

expects to submit a proposed generic letter to CRGR for review in early Novewber which would require AFW modifications at some i plants.

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Mr. David.A. Ward - October 28, 1985 l

1 The team which perfomed the special ins i during Perfonnance Appraisal Team (PAT) pection inspections and utilized techniques Integrated Design employed

. Inspection (IDI) efforts to assess both the design changes and the other

functional areas which could affect the operational readiness of the AFWS. '

The Inspection Report (50-250/85-32; 50-251/85-32, " Safety System Functional j

Inspection Report") was issued on October 7,1985, in which the staff addressed deficiencies in maintenance, surveillance testing, and design

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changes and modifications. Copies of the report have been sent to the ACRS.

l The licensee has already responded to our concerns relating to procedures

and training and has committed to provide Technical Specification requirements ,

to assure operability of the two 100% capacity motor driven non-safety grade i AFW pumps. These pumps are routinely used for start-up and shut-down and, j if off-site power is lost, can be powered by any of the five non-safety '

4 , diesel generators on site. .The licensee has been requested to respond.to .

2 all the items in-the report and to provide details'of additional actio'ns to i be taken to resolve our concerns. This matter has been referred to,the j Chief Executive Officer of Florida Power and Light for his personal 1

participation in resolving our concerns at Turkey Point.

Inaddition,asurveyofthemaintenanceprogramatTurkeyPointwill'bg5 i' '.

carried out within the framework of the Maintenance and Surveillance Program in NRR. The survey is scheduled the week of December 2, 1985. The objective i' of the survey is to review the overall practices and organization of the maintenance programs. The survey will examine the organization and administration of the maintenance department, facilities and equipment,

technical procedures, personnel, and work control policies. Four such

, surveys have already been-completed at other plants. An identical protocol, developed in the Maintenance and Surveillance Program, is being used for all  ;

j site surveys. A copy of the Turkey Point site survey report will be i available in mid-January 1986. i

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, We will continue to keep the comittee informed of our efforts relating to i j enhancement and improvement of AFW systems to provide Ancreased assurance that  :

j .they.will be available and capable of performing their critical safety  !

function when needed. l Sincerely, W +

l Harold R. Dent'on, Director . j Office of Nuclear Reactor Regulation j

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