ML18113A280

LER 1977-002-00 for St. Lucie Unit 1, During Surveillance Testing 1B Diesel Generator Was Started, and After Running for 55 Minutes Tripped on Lockout

ML18113A280
Person / Time
Site:	Saint Lucie
Issue date:	02/17/1977
From:	Schmidt A Florida Power & Light Co
To:	Moseley N NRC/IE, NRC/RGN-II
References
PRN-LI-77-35 LER 1977-002-00
Download: ML18113A280 (8)

Text

NRC FoRM 195 U.S. NUCLEAR REGULATORY C SS ION DOCKET NUMBER I2 76)

FILE NUMBER NRC DISTRIBUTION FoR PART 50 DOCKET MATERIAL INCIDENT REPORT TO: Mr N C Moseley FROM:'lorida Power & Light Co DATE OF D/CJQE$ $

Miami, Fla DATE RECEIVED A D Schmidt 3 Q 77

%LETTER ONOTORIZED>> PROP INPVT FORM NUMBER OF COPIES RECEIVED l

@ORIGINAL @UNCLASSIFIED C3COPY one signed DESCRIPTION ENCLOSURE Ltr trans the following: Licensee Event Report (ROIII 77,-2) on 1-18-77 concerning tripping of 1B diesel generator ACKNOWLEDGED PLANT NAME: St Lucie $P1 IIO NOT RZ]@PE t

NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J COLLINS FOR ACTION/INFORMATION BRANCH CHIEF: e an%

W 3 CYS FOR ACTION LIC, ASST+. S W CYS ACRS CYS Il888%Nt S NT S INTERNAL DISTRIBUTION G FI PDR I6 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 LPDR0

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• RC 9 February 17, 1977 4'87il'@ PRN-LI-77-35 IO g

Mr. Norman C. Moseley, Director, Region II, ECZ(yg 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 335-77-2 ST. LUCIE UNIT 1 DATE OF OCCURRENCE: ,JANUARY 18i 1977 DIESEL GENERATOR lB 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, 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

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l LICENSEE EVENT REPORT CONTROL BLOCK: [P ABE PRINT ALL RMUIRED INFORMATION7 6

UCENSEE UCENSE EVENT NAME UCENSE NUMBER TYPE TYPE

[OD1] F L S L S 1 0 0 0 0 0 0 0 0 0 4 1 1 1 1 Loooz~l

.7 89

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14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYP~E SOURCE ~

DOCKET NUMBER EVENT DATE REPORT DATE

~01 CON'1 ~L L 0 5 0 0 3 3 5 0 1 1 8 7 7 0 2 1 7 8 57 58 59 60 61 68 69 74 75 80 I

EVENT DESCRIPTION Qo 7 89 2

89 Durin surveillance testin to 1500 KW. After runnin for a roximatel 55 minutes th B toD43 Generator il tri the 1B Diesel Generator was started and loade ed on lockout. Within one hour the lA Diesel Generator wa D'0 80 7 8 9 80

[ODsJ started and its o erabilit demonstrated as re uired b Technical S ecifi a-7 8 9 7

toO6] tion 3.8.1.1.

8 9 Initial ins ection of the 1B Diesel Generator indicated 80 PAVE BO SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE 5UPPUER MANU FACTUFER 7

~RE 8 9 10 E E E G I E E A 43 44 G 1 0 0 N 11 12 17 47 48 CAUSE DESCRIPTION IOOSJ 7 8 9 BO t

toom 7 8 9 to be failure of the turbochar er as evidenced b the resence of oil at 80

~10 7 89 80 FAC~ METHOD OF STATUS POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION

~E ~OS[ O NA NA 7 8 9 10 12 13 44 45 46 80 FORM OF ACTIVITY COATENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE KHl NA NA 7 8 9 10 11 44 45 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

~oo o ~z NA 7 89 11 12 13 eo PERS'ONNEL INJURIES NUMBER DESCRIPTION

~4 ~oo '1 o NA 7 8 9 12 Bo PROBABLE CONSEQUENCES NA

'~g 7 8 9 BO LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION

~16 D Cost of re lacement of diesel turbochar er 7 89 10 80 PUBLICITY NA 7 8 9 ~ 80 ADDITIONAL FACTORS 89 See a two for continuation of Event Descri tion and Cause Descri tion.

7 80 Qs]

7 89 Bo M. A. Scho man IIF 0 S S 'I 4 d 6 7

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Reportable Occurrence 335-77-2 Licensee Event Report Page Two EVENT DESCRIPTION (Continued) failure of the turbocharger unit. The turbocharger was removed and the diesel oil and air systems cleaned and inspected. The additional inspection verified that damage had been self-contained and limited to the turbocharger unit. A new turbocharger was installed and the 1B Diesel Generator was tested satisfactorily and returned to service within the applicable Technical Specification time limits.

This was the first occurrence of this type at St. Lucie Unit 1 involving the lB Diesel Generator. (335-77-2).

CAUSE DESCRIPTION (Continued) the turbocharger shaft and the oil seal had been damaged.

The damaged turbocharger unit, is being independently analyzed by the vendor to determine the exact cause of failure.

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