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 NRC FORM 195 U.S. NUCLEAR REGULATORY COM .FUSION OOC+KT NUM BE I2-TEI ~

FILE NUMBER NRC DISTRIBUTION FQR PART 50 DOCKET MATERIAL FROM: DATE OF DOCUMENT TO:

Florida Power G Light Company 7/8/77 Mr. Norman C. Moseley Miami, FL DATE RECEIVED D Schmidt 8/1 77 QNOTORIZED PROP INPUT FORM NUMBER OF COPIES RECEIVED ETTE R g)RIG INAI gJNCLASSIFIED 0 COPY l Sa ed DESCRIPTION ENCLOSURE

@Q., Licensee Event Report g RO-50-335/7P-3 gag on 1A

~l/19/77 concerning the faiXure of the Diesel Generator to start.

Ia~gQtI@

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 I

ACRS 16 SENT AS AT 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 Office of Inspection and Enforcement II 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 I. I I I EJ II 7qgg +027~

L~

PEOPLE... SERVING PEOPLE

t P'0'l Nf ) BA/'Jl

.>.t <n sess"sgsa L16l<fl300 03AIi038

ICENSEE EVENT REPORT PDATE REPORT I/1 INK REPORT FEBRUARY 17 1977 CONTROL BLOCK: [PLEASE PRINT ALL REQUIRED INFORMATION) 1 LCENSEf LK:ENSE EVENT NAME LICENSE NUMBER TYPE TYPE S L S 1 0 0 0 0 0 0 0 0 0 4 1 1 1 1 89

~

7 14 15 25 26 30 31 32 REPORT. REPORT CATEGORY TYPE SOURCE OOCKET NUMSER ~ EVENT OATE REPORT CATE

[oa~jcoii( 0 0 5 0 1 1 9 7 7 0 5 0 3 7 7 7 8 57 58 59 60 61 68 69 74 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 I

7 89 80

~4 of . ervice at the time see 335-77-2 two offsite AC circuits were demonstrated 7 8 9 80 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 PRME SYSTEM CAUSE COMPONENT COMPONENT COOE COOS COMPONENT COOE SUPPLER MANUFACTURER

~07 ~RE ~c E N G I N E A G 1 0 0 7 8 9 10 11 12 17 44 47 48 CAUSE DESCRIPTION IOOI 7 8 9 e 1A Diesel Generator failure to start was attributed to a dirt fuel rack linka e 80 tOOI 7 8 9

~10 7 89 80 FACILITY METHOO OF STATUS 5 POWER OTHER STATUS OISCOVERY OISCOVERY OESCRIPTION 7 8 9 B ~08 0 NA NA 10 12 13 44 45 46 60 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE t112 ~z ~z NA NA 7 8 9 10 11 44 45 PERSONNEL EXPOSURES NUMSER TYPE 0ESCRIPTION 7

~z ~oo o z NA 8 9 11 12 13 80 PERS'ONNEL liVJURIES NUMBER OESCRIPTION 7

~i4 89

~00 0 11 12 NA 80 PROBABLE CONSEQUENCES Q~g NA 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION NA 7 89 10 80 PUBLICITY NA 7 8 9 80 AOOITIONAL FACTORS Q~

7 I89 See Pa e Two for continuation of Event Descri tion.

80 7 89 80 NAME: M. A. Scho man PHONE: 305 552-3802 GPO ddt

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 started locally 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 iV FLORIDA POWER & LIGHT COMPANY July 8, 1977 PRN-LI-77-223 Mr. Norman C. Moseley, Director, Region Office of Inspection and Enforcement II 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

t INITIAL REPORT FEBRUARY 17 1977 CONTROL BLOCK: fPL~E PRINT ALL REQUIRED INFORI'RATION)

A 1 6 LCEN SEE UCENSE EVENT 89 NAME S 1 14 15 0 0 00000 UCENSE NUMBER 0025 26 411 11 TYPE 30 TYPE L0GO3'j 31 32 REPOT REPORT CATEGORY TYPE SOURC'E OOCKET NUMBER EVENT'ATE REPORT OATE

" corn L-L-I 0 0 5 0 1 1 9 7 7 0 5 0 3 7 7 8 57 58 59 60 61 68 69 74 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 80 4 of ervice at the time see 335-77-2 two offsite AC circuits were demonstrated 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 PAME SYSTEM CAUSE COMPONB47 COMPONENT COBE COOE COMPONENT COOE SUPPVER

~EE ~C E N 0 I N E A G 1 0 0 N 8 9 10 11 12 17 47 CAUSE DESCRIPTION e A Die e Generator failure to start was attributed to a dirt fuel rack linka e 89 80 9

89 0

89 FAClUPf METHOO OF 80 STATUS  % POWER OTHER STATUS OSCOVERY OSCOVERY OESCRtPTiON E ~OE 0 NA B NA 8 9 FOAM OF 10 12 13 44 45 46 80 ACTIVITY CO A TENT RELEASEO OF RELEASE AMOUNT OF ACTWITY LOCATtON OF RELEASE

~z ~z NA NA 8 9 10 11 44 45 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTtON 3~Op 0 ~Z NA 89 11 12 13 80 PERSONNEL INJURIES 4

8 9 000 11 DESCRIPTION 12 NA eo ROBABLE CONSEQUENCES 5 NA 89 60 LOSS OR DAMAGE TO FACIUTY TYPE OESCR5%0N Ld NA 60 PUBUCITY 89 60 ADDITIONAL FACTORS See Pa e Two for continuation of Event Descri tion.

89 80 89 80 M. A. Scho man PHONE. 305 552-3802

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)