ML18113A255

Corrected LER 1977-003-00 for St. Lucie Unit 1 Re Failure of 1A Diesel Generator to Start

ML18113A255
Person / Time
Site:	Saint Lucie
Issue date:	03/08/1977
From:	Schmidt A Florida Power & Light Co
To:	Moseley N NRC/IE, NRC/RGN-II
References
PRN-LI-77-56 LER 1977-003-00
Download: ML18113A255 (8)

Text

N RC FORM 195 I2.761 V.S. NUCLEAR REGULATORY CO SSION

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DOCKET NUMI3EB FILE NUMIIER f'-'PC DISTRIBUTlON FQR PART 50 DOCKET MATERIAL TO: Mr. Norman C. Moseley FROM: PPL DATE OF DOCUMENT Miami, PI. 33101 A. D. Schmidt DATE RECEIVED 0 <.ETTE R QNOTORIZED PROP INPUT FORM NUIVlIIER OF'COPIES RECFIVED ABORIGINAL DCOP Y%

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DESCRIPTION ENCI OSURE Licensee Event Report )RO-50-335/77;3 Ltr. Trans The Following'. on 01-19-77 concerning failure of. Diesihl Generator lA to start. Caused..'by d.irty fuel ck

( lpage ) linkage and possible sub-freezing veather on governor oil system....

I II.CKNOWLEDGEDS (2 pages )

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+T LUCIE UNIT $ 1

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'I'0 NOT aZMOVE SAFETY FOR ACTION/INFORMATION ASSXGNED AD:

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a. PROJECT MANAGER LTC ASST LTC ASST INTERNAL OISTRI BUTION SYSTEMS SAFETY PLANT SYSTEMS S~SA NRC PDR HEINEMAN TEDESCO X&E SCHROEDER OELD GOSSXCK & STAFF ENGXNEERXNG XPPOLITO E 0 MXPC R9 ERNST CASE BOSIGJ,K BALLARD HANAUER 5DWEIL OPERATING REACTORS YOUNGBLOOD HARLESS PAUL STELLO XCI'EACTOR SXTE TECH PROJECT MANAGEIIENT SAFE OPERATXNG TECH GAMMILL BOYD ROSS EXSENIIUT STEPP PE COLLINS NOVAK "S HULMAN HOUSTON ROSZTOCZY ~hX PETERSON CIIECK B,E SXTE ANALYSXS MELTZ VOLLMER HELTEMES AT & I BUNCH SKOVHOLT SALTZMAN J~ COLLXNS RUTBI',RG KREGER EXTERNAL OISTRIBUTION CONTROL NUMBER LPDR: NAT LABJ IUKK1IAVEKMT~Eo TXC: REG V ~ IE ULR7KSON OR NSXC:

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Lh PDR CONSULTANTS:

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Nflc FORM 196 I2-76)

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P. O. BOX 013100, MIAMI, FL 33101

~gglgi FLORIDA POWER & LIGHT COMPANY March 8, 1977 PRN-LI-77-56

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Mr. Norman C. Moseley, Director, Region II Office of Inspection and Enforcement I~CQyg U. S. Nuclear Regulatory Commission 230 Peachtree Street, N. W., Suite 1217 Qw

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Dear Mr. Moseley:

4i PP REPORTABLE OCCURRENCE 335-77-3 14~,-"

ST. LUCIE UNIT 1 DATE OF OCCURRENCE: JANUARY 19, 1977 CORRECTION Page two of the original LER dated February 17, 1977 contains an unnecessary paragraph.

j A corrected copy of the LER is attached.

1 Very truly yours, k

A~D. Schmidt Vice President Power Resources MAS/cpc Attachment cc: Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (30)

Director, Office of Management Information and Program Control (3)

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LICENSEE EVEI'UT REPORT I

I s CONTROL 8LOCX:~ fi 56 PRINT ALL R CUIR 0 INFORMATIOtiI)

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UCENSEE UC'ENSE EVONT jOD1]

7 89 F L NAME S L S 1

.14 15 00 .oolooo'too LlCENSE NUMBER 25 26 4 1 TYPE 1 1 1 30

'~03 31 TYPE

'2 REPORT 'EPORT CATEGORY TYPE 'OUiRCc COCKET NUMBER EVENT CATE REPORT CATE jQD1] cos'T ~L 1, O 5 0 Ol 3 3l 5 0 1 1 9 7 7 0 2 1 7 7 7 7 8 57 58: 59 60 61 69 74 75 80 I

EVENT OESCRIPTION

~0 c Durin surveillance testin the lA Diesel Generator failed to start. A 7 8 9 80..

second attem t to start the lA diesel roduced the. same result. Since thd 7 8 9 80

[oO4] 1B Diesel Generator was out of service -at the time (See 335-77-2), two 7 8 9 80 f s' c'rcuits w'e demonstrated operable within one hour as reciuire 8 9 80

~la b chnical S ecification 3.8.1.1 Observation showed that the 12 7 6 9 PRME 60 SYSTEsM CAUSE COMPONENT CC MPCN sNT COMPONENT CQOE SUFFs 'ER MANUFACTUFER N GII N E G 1 0 0 N 7 8 9 10 11 12 47 48 CAUSE OESCRIPTION 7

+~a 8 9 The lA Diesel Generator failure to start was attributed to a dirt fuel 60 rack links e and ossibl the effect of unusual, rolon ed, sub-freezing 7 6 9 Q~ g weather on the Diesel overnor oil s stem.

7 8 9 00 FACiLJTY McTHOO CF STATUS C POWER OTHER STATUS OiSCQVERY QiSCOVERY OESCRlPT'ON t'

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"12 13 NA 44 45 46 FOAM OF ACTIVTTY COATENT RELEASEO OF RELEASE AMQUTiT OF ACTiVTTY LOCATiON OF RELEASE LJz ~z NA NA 9 10 11 60 PERSONNEL EXPOSURES 7 8 9 NUMBER LOOooo 11 l~z l

TYPE 12 13 OESCR}PTiON NA 80 PERSONNEL INJURIES NUMBOR CESCRIPTlQN

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o NA 7 8 11 12 PRO3AfILE CONSEGUENCES NA 7 6 9 LOSS OR OAMAGE TO FACILITY TYPE OESCnlPilQN Q~= z NA 7 89 10 80 PUSLICITY 7 8 9 AOOITiONAL FACTORS EiesLSee Pa e Two for continuation of Event Descri tion.

7 69 ao NAME. N. A. Schop man PHONE. 3 05/552-377 9 CJ'0 CCT CC>>

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REPORTABLE OCCURRENCE 335-77-3 LICENSEE. EVENT REPORT PAGE TWO EVENT DESCRIPTION'(Continued) cylinder rack handle of the lA Diesel Generator was stuck 'in the open position. The rack handle linkage was lubricated, and the diesel was started locally and.tested satisfactorily within the time lim'ts required by the Technical Specifications.

During a second surveillance test conducted the same day, the lA Diesel Generator again failed to start due to the same rack handle linkage to the. fuel racks of the 12 cylinder cause.'he diesel was disasse.idled, cleaned, and relubricated.- Xn addition, heat from' heat lamp was applied to the diesel governor assembly.

The lA Diesel Generator was then started and tested satisfactorily within the time limits allowed by the Technical Specifications.

Although it is not known whether malfunction of the linkage or abnormally cold weather effects on the oil system caused the problem,. long-term corrective action to preclude recurrence will be to periodically. clean the linkage. Prolonged periods of below-freezing weather are rare at the St. Lucie site,. however, under such weather conditions special measures will by taken to

provide external heating to the diesel governor oil system.

This is the third occurrence of a diesel generator failing to start properly. The previously reported start failures involved

a. clogged air start system solenoid valve and air line (335-76-21) and an improper air start valve lineup (335-76-44), and are un-related to this occurrence.

(335-77-3)

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