ML17222A469

Responds to NRC 880816 Ltr Re Violations Noted in Insp Rept 50-335/88-16.Corrective Actions:Monthly Diesel Periodic Test Changed to Require That Design Start Time Be Verified within Specs

ML17222A469
Person / Time
Site:	Saint Lucie
Issue date:	09/12/1988
From:	Conway W FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
L-88-393, NUDOCS 8809140329
Download: ML17222A469 (6)

Text

I ACCELERATED IHSTRIBUTION DEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

CCESSION NBR:8809140329 DOC.DATE: 88/09/12 NOTARIZED: NO DOCKET CIL:50-335 St. Lucie Plant, Unit 1, Florida Power & Light Co. 05000335 UTH.NAME AUTHOR AFFILIATION ONWAY,W.F. Florida Power & Light Co.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Responds to 50-335/88-16.

NRC 880816 ltr re violations noted in Insp Rept DISTRIBUTION CODE: IEOID TITLE: General (50 COPIES RECEIVED:LTR Dkt)-Insp Rept/Notice of Violation esponse, 2 ENCL SIZE:

NOTES:

ID RECIPIENT CODE/NAME PD2-2 PD COPIES LTTR ENCL 1 1 RECIPIENT ID .'CODE/NAME; TOURIGNY,E COPIES 2

LTTR ENCL INTERNAL: ACRS 2 2 AEOD 1 1 DEDRO 1 1 NRR MORISSEAU,D 1 1 NRR/DLPQ/PEB 11 1 1 NRR/DLPQ/QAB 10 1 1 NRR/DOEA DIR 11 1 1 NRR/DREP/EPB 10 1 1 NRR/DREP/RPB 10 2 2 NRR/DRIS DIR 9A .1 '1 LRB NUDOCS-ABSTRACT 1 1 O

G I-E.B, FWE 12 J

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1 1

1 1

1 OGC/HDS2 RES/DSIR DEPY 1

1 1

1 GN2~ P 01 1 1 0 RNAL: LPDR NSIC 1 1 NRC PDR 1 1 1 1 A

D ig 8

TOTAL NUMBER OF COPIES REQUIRED: LTTR 25 ENCL 25

P. O. BOX 14000, JUNO BEACH, FL 33408.0420 SEt'TEh18ER 1 2 1989 L-88-393 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Gentlemen:

Re: St. Lucie Unit 1 Docket No. 50-335 Ins ection Re ort 335 88-16 Florida Power & Light Company has reviewed the subject inspection report, and pursuant to NRC letter (A. R. Herdt to W. F. Conway) dated August 16, 1988, the response is attached.

Very truly yours,

~Sr~~~

W. F. Conwag Senior Vice President - Nuclear WFC/GR 1/cm Attachment cc: Dr. J. Nelson Grace, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant GRMIR335 3309'1 00 ~29'v0922 PDR ADOCK 05000"'35 PDC an Fpl Group company

NRC REPORT 50-335/88-16 DEVIATION The Uni:t 1 FSAR, Section 8.3.1.1.7, requires the diesel generators to be capable of reaching full speed and voltage within 10 seconds after receiving a signal to start.

Contrary to the above, during Unit 1 emergency diesel generator surveillance testing on March 29, 1987, emergency diesel generators 1A and 1B attained rated speed and voltage in 10.1 seconds and 12.7 seconds, respectively. As such, Unit 1 surveillance testing on two occasions failed to demonstrate the diesel generators are capable of satisfying FSAR design requirements.

RESPONSE

1. Reason for deviation:

FPL has investigated this deviation with the operators involved.

Because of the time lapse (greater than 15 months), no specific reasons could be given as to why they would have entered start times for the diesels in excess of the design values and not have notified the responsible supervision. Subsequent entries in the same data sheet are within the design values and records of maintenance activities show no conclusive evidence that start times were affected. In addition, the diesels were tested as part of the integrated response time tests for safeguards equipment in July and found to be satisfactory.

2. Corrective steps:

Since the diesels had met the design start times subsequent to the dates identified, no immediate action was taken.

3. Corrective steps to preclude further deviation:

FPL has changed the monthly diesel periodic test to require the design start time be verified within specifications. In addition, the responsible personnel have been instructed to notify the operations supervisor in instances where surveillances are satisfactory but the equipment is known not to meet its design requirements.

4. Corrective action is considered complete.

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