ML18110A892

LER 77-105-00 for Saint Lucie Unit 1 Regarding Failure of the 1A Diesel Generator to Start During a Surveillance Test

ML18110A892
Person / Time
Site:	Saint Lucie
Issue date:	03/31/1977
From:	Schmidt A Florida Power & Light Co
To:	Moseley N NRC/RGN-II
References
PRN-LI-77-96 LER 77-015-00
Download: ML18110A892 (8)

Text

NIIC'FORM .1 JI5 U.S. NUCLEAR REGULATORY Co SSION O~OC T t~4 I2 76I FILE NUMBER NRC DISTRIBUTION FQR PART 50 DOCKET MATERIAL INCIDENT REPORT TO: FROM: DATE OF DOCUMENT Florida Power &,Light Company 3/31/77 Mr. Norman JgfLETTER C~ Moseley 0 NOTOR IZ E D

'iMiami, Florida PROP D Schmidt INPUT FORM DATE RECEIVED

/18/77 NUMBER OF COPIES RECEIVED

~R I QCOP Y G IN AI

+t NC LASS IF I E D DESCRIPTION ENCLOSURE Ltr trans the following: Licensee Event Report .(RO 50-335/77-15) on 3/1/77 concerning the= 1A Diesel'enerator failing to start during a surveillance test ~

, PLANT NAME:

(1-P) (2-P) (yta@gtIE

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St ~ Lucie'nit No. 1

(<g RJL NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS FOR ACTION/INFORMATION BRANCH CHIEF: WWa rs e H 3 CYS FOR ACTION LICo ASST':

M CYS ACRS CYS S NT INTERNAL DISTR I BUTION

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. 6c E 2 MIPC SCHROEDER/IPPOLITO HOUSTON NOVAK/CHECK GRIMES CASE BUTLER HANAUER TEDESCO/MACCARY EISENHUT BAER SHAO VOLLMER/BUNCH KREGER/J COLLINS EXTERNAL DISTRIBUTION CONTROL NUMBER LPDR: CP'C e-TZC0 N

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5I P. O. BOX 013100, MIAMI, FL 33101 h>a<4 FLORIDA POWER 8 LIGHT COMPANY March 31, 1977 PRN-LI-77-96

~e~fE@p Pile gy 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 OCCURRENCE 335-77-15 ST. LUCIE UNIT 1 DATE OF OCCURRENCE: MARCH 1, 1977 lA DIESEL GENERATOR The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide 30-day notification of the subject occurrence.

Very truly yours, 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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PEOPLE... SERVING PEOPLE

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EVENT REPORT I'ICENSEE A"ii 1 " 1

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CONTROL BLOCK: (PLEASE PAINT ALL RMUIREO INFORMATION7 6

I UCENSEE UCENSE EVENT NAME UCENSE NUMSEA TYPE TYPE tODg F L S L S 1 0 0 0 0 0 0 0 0 0 4 1 1 1 1

,7 89

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14 15 25 26" 30 31 32 REPORT AEPOAT CATEGORY TYPE SOURCE COCKET NUMSEA EVENT DATE REPORT OATE

[OD1]CONT ~L L 0 5 0 0 3 3 5 0 3 0 1 7 7 0 3 3 0 7 8 57 58 59 60 61 68 69 74 75 80 I

EVENT DESCRIPTION

~0 2 Durin a surveillance test the 1A Diesel Generator failed to start. The diesel had 7 8 9 80 been initiall rolled with air to clear the c linders as re uired b rocedure. Duri 7 89 ao

~04 this time a enerator lockout occurred a arentl -due to a s urious alarm. The 7 8 9 80 Qg enerator lockout- rela was reset but the o erator did not relatch the overs eed tri 7 8 9 80

~0 6 mechanism. Subse uentl the diesel could not be started. The 1B Diesel Generator was 7 8 9 80 SYSTEM CAUSE COMPONENT COOS COOE COMPONENT COOS MANUFACTURER

[OD~] ~ED A E N G I A E 1 4 7 N 7 8 9 10 11 . 12 17 43 44 47 48 CAUSE OESCRIPTION

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f e f s t w 8 9 Q~

7 I8 9 mechanism followin a enerator lockout.

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~10 7 89 80 FACULTY METHOO OF STATUS POWER OTHER STATUS OISCOVERY OISCOVEAY OESCAIPTION Q3 7 8 s ~os NA B NA 9 10 12 13 44 45 46 80 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE EH LzJ Lzl NA NA 7 8 9 10 11 44 45 PERSONNEL EXPOSURES NUMSEA TYPE OESCAIPTION Q~js ~oo o ~z NA 7 8 9 11 12 13 80 PERSONNEL INJURIES KD4 7 89 LCM) 11 12 NA 80 PROBABLE CONSEQUENCES Qg NA 7 8 9 ao LOSS OR OAMAGE To FACILITY TYPE 0ESCRIIFRON z NA 7 89 10 80 PUBLICITY Qrj NA 7 8 9 ~ 80 AOOITIONAL FACTORS Q4 8 See Pa e Two for continuation of Event Descri tion.

7 89 80 7 89 80 NAME H. A. Scho man PHONE. 305/552 3779 GFO ddl r ddT

~' ~ ig 0 Licensee Event Report Reportable Occurrence 335-77-15 Pae2 EVENT PRESCRIPTION (Continued) started and demonstrated operable, and two off-site power sources were determined operable as required by Technical Specification 3.8.l.l.a.

Further investigation revealed that the overspeed trip mechanism was in fact tripped. The trip mechanism was relatched and the diesel was satisfactorily started and run within the time limits allowed by the Technical Specifications.

This was the second occurrence of a diesel generator failing to start because of operator error. The previously'reported occurrence (335-76-44) was due to an improper valve lineup.

Attempts were later made to repeat, the generator lockout but the event could not be repeated. The diesel started satisfactorily during these evaluations.

A letter will be sent to the appropriate operations personnel stressing the importance of ensuring proper diesel generator lineup at all times.

(335-77-15)

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