ML18110A877

LER 1977-335-03 for St. Lucie, Unit 1 on Diesel Generator 1A, Update Report No. 1

ML18110A877
Person / Time
Site:	Saint Lucie
Issue date:	07/08/1977
From:	Schmidt A Florida Power & Light Co
To:	Moseley N NRC/IE, NRC/RGN-II
References
LER 1977-335-03
Download: ML18110A877 (12)

Text

• lg U.S.NUCLEAR REGULATORY COM.FUSION NRC FORM 195 I2-TEI~NRC DISTRIBUTION FQR PART 50 DOCKET MATERIAL OOC+KT NUM BE FILE NUMBER TO: Mr.Norman C.Moseley FROM: Florida Power G Light Company Miami, FL D Schmidt DATE OF DOCUMENT 7/8/77 DATE RECEIVED 8/1 77 ETTE R g)RIG INAI 0 COPY QNOTORIZED gJNCLASSIFIED PROP INPUT FORM NUMBER OF COPIES RECEIVED l Sa ed DESCRIPTION

@Q., gag Ia~gQtI@ENCLOSURE Licensee Event Report g RO-50-335/7P-3 on~l/19/77 concerning the faiXure of the 1A Diesel Generator to start.PLANT NAME't.Lucie'Unit 1 VT 8/2/77 (1-P)(2-P)NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J.COLLINS aseL c~A FOR ACTION/INFORMATION INTERNAL D ISTRI BUTION EXTERNAL DISTRIBUTION CONTROL NUMBER ACRS 16 SENT AS AT I 772140278'RC FORM 195{2-7SI p~~y;a (J~f N,~p j<'7 1)f P.O.BOX 013100, MIAMI, FL 33101 Qlgq FLORIDA POWER&LIGHT COMPANY July 8, 1977 PRN-LI-77-223 Mr.Norman C.Moseley, Director, Region II Office of Inspection and Enforcement U.S.Nuclear Regulatory Commission 230 Peachtree Street, N.W., Suite 1217 Atlanta, Georgia 30303

Dear Mr.Moseley:

REPORTABLE 0 URRENCE 335-77-3 ST.LUCIE UNIT 1 DATE OF OCCURRENCE:

JANUARY 19, 1977 DIESEL GENERATOR lA UPDATE REPORT NO.1 The attached Licensee Event Report is being submitted to update our initial report of February 17, 1977.Very truly yours, 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)r II I.I I I EJ 7qgg+027~L~PEOPLE...SERVING PEOPLE t P'0'l Nf)BA/'Jl.>.t<n sess"sgsa L16l<fl300 03AIi038 CONTROL BLOCK: 1 LCENSEf NAME S L S 1 0 0 LICENSE NUMBER 0 0 0 0 0-0 0 LK:ENSE TYPE 4 1 1 1 1 EVENT TYPE ICENSEE EVENT REPORT-PDATE REPORT I/1 INK REPORT-FEBRUARY 17 1977[PLEASE PRINT ALL REQUIRED INFORMATION) 7 89 14 15 25 26 30 31 32 REPORT.REPORT CATEGORY TYPE SOURCE[oa~jcoii(~7 8 57 58 59 60 61 OOCKET NUMSER 0-0~EVENT OATE 5 0 1 1 9 7 7 68 69 74 REPORT CATE 0 5 0 3 7 7 75 80 EVENT OESCRIPTION Qg Durin surveillance testin the lA Diesel Generator failed to start.A second attempt 7 8 9 80/~3"to start the 1A diesel roduced the same result.Since the 1B Diesel Generator was out 7 89 80~4 of.ervice at the time see 335-77-2 two offsite AC circuits were demonstrated 7 8 9 80 I o erable within one hour a's re uired b Technical S ecification 3.8.1.1.Observation 7 8 9 80 showed that the 12 c linder rack handle of the 1A Diesel'enerator was stuck in the o en 89 SYSTEM CAUSE COOE COOS COMPONENT COOE~07~RE~c E N G I N E 7 8 9 10 11 12 17 CAUSE DESCRIPTION IOOI e 1A Diesel Generator failure to 7 8 9 tOOI PRME COMPONENT SUPPLER A COMPONENT MANUFACTURER G 1 0 0 44 47 48 start was attributed to a dirt fuel rack linka e 80 7 8 9~10 OTHER STATUS NA AMOUNT OF ACTIVITY NA PROBABLE CONSEQUENCES Q~g 7 8 9 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION 7 89 10 PUBLICITY 7 8 9 7 89 FACILITY STATUS 5 POWER B~08 0 7 8 9 10 12 13 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE t112~z~z 7 8 9 10 11 PERSONNEL EXPOSURES NUM SER TYPE 0ESCRIPTION

~z~oo o z 7 8 9 11 12 13 PERS'ONNEL liV JURIES NUMBER OESCRIPTION

~i4~00 0 7 89 11 12 METHOO OF OISCOVERY 44 45 46 44 45 NA NA NA NA NA OISCOVERY OESCRIPTION NA LOCATION OF RELEASE NA 80 60 80 80 80 80 80 AOOITIONAL FACTORS Q~I See Pa e Two for continuation of Event Descri tion.7 89 80 7 89 NAME: M.A.Scho man PHONE: 305 552-3802 GPO ddt 80 r'~'

REPORTABLE OCCURRENCE 335-77-3 LICENSEE EVENT REPORT-UPDATE/Il PAGE lVO EVENT DESCRIPTION (Continued) position.The rack handle linkage was lubricated, and the diesel was startedlocally and tested satisfactorily within the time limits 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 cause.The rack handle linkage to the fuel racks of the 12 cylinder diesel was disassembled, cleaned, and relubricated.

In addition, heat from a heat lamp was applied to the diesel governor assembly.The 1A Diesel Generator was then started and tested satisfactorily within the time limits allowed by the Technical Specifications.

It is not known whether malfunction of the linkage or abnormally cold weather effects on the oil system caused the problem.In lieu of the previously reported proposed corrective action, the following has been accomplished.

The cleaning and removal of paint from the rack handle linkage is considered to adequately remove malfunction of the linkage as a potential problem.Prolonged periods of below-freezing weather are rare at the St.Lucie site.However, to enhance governox operation under such weather conditions, the governor oil has been changed to a lower viscosity type as allowed by the manufacturer's technical manual.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 unrelated to this occurrence.

(335-77-3)

~2 h I~~gO Q i V FLORIDA POWER&LIGHT COMPANY July 8, 1977 PRN-LI-77-223 Mr.Norman C.Moseley, Director, Region II Office of Inspection and Enforcement U.S.Nuclear Regulatory Commission 230 Peachtree Street, N.N., Suite 1217 Atlanta, Georgia 30303

Dear Mr.Moseley:

REPORTABLE OCCURRENCE 335-77-3 ST.LUCIE UNIT 1 DATE OF OCCURRENCE:

JANUARY 19, 1977 DIESEL GENERATOR 1A-UPDATE REPORT NO.1 The attached Licensee Event Report is being submitted to update our initial report of February 17, 1977.Very truly yours, 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)PEOPLE...SERVING PEOPLE

89 t CONTROL BLOCK: 1 A LCEN SEE NAME S 1 0 0 14 15 INITIAL REPORT-FEBRUARY 17 1977 fPL~E PRINT ALL REQUIRED INFORI'RATION) 6 UCENSE EVENT UCENSE NUMBER TYPE TYPE 00000 00 411 11 L0GO3'j 25 26 30 31 32 REPOT REPORT CATEGORY TYPE SOURC'E" corn L-L-I 8 57 58 59 60 61 OOCKET NUMBER 0-0 EVENT'ATE 5 0 1 1 9 7 7 68 69 74 REPORT OATE 0 5 0 3 7 7 75 80 EVENT DESCRIPTION 2 D in surveillance testin the lA Diesel Generator failed to start.A second attempt 89 80 3 to start the 1A diesel roduced the same result.Since the 1B Diesel Generator was out 89 4 of ervice at the time see 335-77-2 two offsite AC circuits were demonstrated 80 89 80 o erable within one hour a's re uired b Technical S ecification 3.8.1.1.Observation 8 9 80 6 showed that the 12 c linder rack handle of the lA Diesel"'enerator was stuck in the o en 89 SYSTEM CAUSE COBE COOE COMPONENT COOE~EE~C E N 0 I N E 8 9 10 11 12 17 CAUSE DESCRIPTION e A Die e Generator failure to 89 9 89 0 PAME COMPONB47 SUPPVER A COMPONENT G 1 0 0 47 N start was attributed to a dirt fuel rack linka e 80 89 OTHER STATUS NA AMOUNT OF ACTWITY NA ROBABLE CONSEQUENCES 5 89 LOSS OR DAMAGE TO FACIUTY TYPE OESCR5%0N Ld PUBUCITY FAClUPf STATUS%POWER E~OE 0 89 10 12 13 FOAM OF ACTIVITY CO A TENT RELEASEO OF RELEASE~z~z 8 9 10 11 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTtON 3~Op 0~Z 89 11 12 13 PERSONNEL INJURIES DESCRIPTION 4 000 8 9 11 12 METHOO OF OSCOVERY B 44 45 46 44 45 NA NA NA NA OSCOVERY OESCRtPTiON NA LOCATtON OF RELEASE NA 80 80 80 eo 60 60 89 ADDITIONAL FACTORS See Pa e Two for continuation of Event Descri tion.89 60 80 89 M.A.Scho man PHONE.305 552-3802 80 REPORTABLE OCCURRENCE 335-77-3 LICENSEE EVENT REPORT-UPDATE//1 PAGE T!00 EVENT DESCRIPTION (Continued) position.The rack handle linkage was lubricated, and the diesel was started locally and tested satisfactorily within the time limits required by the Technical Specifications.

During a second surveillance test conducted the same day, the 1A Diesel Generator again failed to start due to the same cause.The rack handle linkage to the fuel racks of the 12 cylinder diesel was disassembled, cleaned, and relubricated.

In addition, heat from a heat lamp was applied to the diesel governor assembly.The 1A Diesel Generator was then started and tested satisfactorily within the time limits allowed by the Technical Specifications.

It is not known whether malfunction of the linkage or abnormally cold weather effects on the oil system caused the pxoblem.In lieu of the previously reported proposed corrective action, the following has been accomplished.

The cleaning and removal of paint from the rack handle linkage is considered to adequately remove malfunction of the linkage as a potential problem.Prolonged periods of below-freezing weather are rare at the St.Lucie site.However, to enhance governor operation under such weather conditions, the governor oil has been changed to a lower viscosity type as allowed by the manufacturer's technical manual.This is the third occurrence of a diesel generator failing to start properly.The previously xeported 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 unrelated to this occurrence.

(335-77-3)