ML17222A726

Forwards First Set of Responses to Generic Ltr 88-14, Instrument Air Supply Sys Problems Affecting Safety-Related Equipment, Per Phased Schedule Noted in Util

ML17222A726
Person / Time
Site:	Saint Lucie
Issue date:	03/14/1989
From:	Conway W FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-88-14, L-89-98, NUDOCS 8903230302
Download: ML17222A726 (10)

Text

DOCKET 05000335 05000389

SUBJECT:

Responds to Generic Ltr 88-14, "Instrument Air Supply Sys Problems Affecting Safety-Related Equipment."

DISTRIBUTION CODE:

AOOID COPIES RECEIVED:LTR

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ENCL L SIZE:

5 TITLE: OR Submittal: General Distribution

'CCELERATED DISTRIBUTION 'EMONSTRATION SYSTEM

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REGULAT(

INFORMATION DISTRIBUTIOtYSTEM (RIDE)

ACCESSION NBR:8903230302 DOC.DATE: 89/03/14 NOTARIZED: YES FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power 6 Light Co.

50-389 St. Lucie Plant, Unit 2, Florida Power a Light Co.

AUTH.NAME AUTHOR AFFILIATION CONWAYFW.F.

Florida Power 6 Light Co.

RECIP.NAME

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RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

NOTES:

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1 RECIPIENT ID CODE/NAME PD2-2 PD COPIES LTTR ENCL 2

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TOTAL NUMBER OF COPIES REQUIRED:

LTTR 25 ENCL 22

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4 P.O. Box14000, Juno Beach, Fl 33408-0420 MARCH 1 4 1989 L-89-98 10 CFR 50.54(f)

U.

S. Nuclear Regulatory Commission Attn:

Document Control Desk Washington, D.

C.

20555 Gentlemen:

m J

Re:

St. Lucie Units 1 and 2

Docket Nos.

50-335 and 50-389 Instrument Air Supply System Problems Affecting Safet -Related E ui ment Generic Letter 88-14 By letter L-88-539 dated December 27, 1988, Florida Power

& Light Company (FPL) provided its phased schedule for responding to Generic Letter (GL) 88-14.

Attached is FPL's first set of responses to GL 88-14 for St. Lucie Units 1 and 2.

I Please contact us if.,you.have any questions about this'submittal.

Very truly yours,'.

F.

Co ay Senior

'ce President Nuclear WFC/EJW/cm Attachments cc:

Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident. Inspector, USNRC, St. Lucie Plant EJWSRE 8903230302, 890314 PDR ADDCK'500033 PNUg A

an FPL Group company

STATE OF FLORIDA

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COUNTY OF PALM BEACH

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~WFC 1

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That he is Senior Vice President-Nuclear of Florida Power 8c Light Company, the Licensee herein; That he has executed the foregoing document; that the statements made in this document are true and correct to the best of his knowledge, information, and

belief, and that he is authorized to execute the document on behalf of said Licensee.

. F. Co Subscribed and sworn to before me this

/~day of dCdW, l9cP~.

NOTARY PUBLIC, in and for the o nty of Palm Beach, State of Florida Notary Public, State of Rorida Ny Commission Expires June 1, 1989 aondad Ifrrv Troy rain lnroranco, Inc.

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tAy,'Commissi'on'expires

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ATTACHMENT St. Lucie Units 1 and 2

Generic Letter 88-14 Instrument Air Supply System Problems Affecting Safety-Related Equipment Item l.

Verification by test that actual instrument air quality is consistent with the manufacturer's recommendation for individual components served.

R~es onse FPL is in the process of upgrading the instrument air systems at St.

Lucie Units 1

and 2

by adding new instrument air compressors and air dryers.

On completion of these upgrades at, both units (currently scheduled for completion by June 1989), air quality will be established which will meet. or exceed the individual components'ir quality requirements, as determined by FPL.

Item 2.

Verification that maintenance practices, emergency procedures, and training are adequate to ensure that safety-related equipment will function as intended on loss of instrument air.

~Res onse Maintenance practices, emergency procedures and training have been reviewed and are considered to be adequate to ensure that safety-related equipment will function as intended on a loss of instrument air.

To ensure proper instrument air

quality, preventative maintenance instructions for the new instrument air compressors and associated equipment include desiccant inspection, filter inspections, moisture separator drain inspection and compressor lubrication/inspection.

Procedures are being revised to reflect the above discussed instrument air systems upgrade.

Item 3.

St. Lucie Plant operators have received training on the operation of the new air compressors and dryers.

Verification that the design of the entire instrument air system including air or other pneumatic accumulators is in accordance with its intended function EJWSRE

~Res onse The instrument air system design bases for each unit, as specified in each unit's updated Final Safety Analysis Report (UFSAR),

were reviewed against system design.

This review verified that the designs of both new instrument air systems, including accumulators, meet the design bases requirements.

The capacity and purification capabilities of the air process equipment have been designed to provide air of a quality recommended by Instrument Society of America Standard ISA S7.3.

Item 3 (continued),

including verification by test that air-operated safety-related components will perform as expected in accordance with all design-basis events, including a loss of the normal instrument air system R~es onse FPL has verified by pre-operational test that all air-operated safety-related components at St.

Lucie Unit 2

perform as expected on loss of instrument air.

FPL has completed about 954 of this verification at St.

Lucie Unit 1; the verification and/or testing willbe completed by the end of the next scheduled Unit 1 refueling outage, i.e.,

about May 1990.

Item 3 (continued),

This design verification should include an analysis of current air operated component failure positions to verify that they are correct for assuring required safety functions.

R~es onse FPL has reviewed system piping and instrument drawings and other engineering documents for St.

Lucie Units 1

and 2.

This review has verified that air operated component failure positions are the correct fail-safe or sa fety-related positions required for accident mitigation in accordance with design.

Item In addition to the above, each licensee/applicant should provide a discussion of their program for maintaining proper instrument air quality.

EJWSRE

~Rea onse FPL's program to maintain instrument air quality will consist of a periodic sampling program.

The parameters to be sampled will include dew point, particulates and hydrocarbons.

These parameters will be trended by the System Engineer who will initiate specific corrective action, if required.

FPL plans on implementing this instrument air quality program by June 1989.

EJWSRE

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