ML18144A702

LER 1977-002-00 for St. Lucie Unit 1, Lockout Trip of Diesel Generator 1B During Surveillance Testing

ML18144A702
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: ML18144A702 (3)

Text

OOY. 013100, MIAMI, FL I:II01 ill]g

)

FLORIDA POWER 6 LIGHT COMPANY "February 17, 1977 PRN-LI-77-35 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 335-77-2 ST. LUCIE UNIT 1 DATE OF OCCURRENCE: JANUARY 18, 1977 DIESEL GENERATOR 1B 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,

~~1 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

LOENBEE EVENT REPORT CONTROL SLOCK: (PLEASE PRINT ALL REaulRED INFORMATION) 6 UCENSKK UCENSE EVENT FLSLS1 NAME UCENSK NUMBER TYPE TYPE 0 0 0 0 0 ol 00 0 4 1 1 1 1 89

~

7 14 15 25 26 30 31 32 REPORT AKPOAT CATEGORY TYPE SOURCE COCKET NUMBER ~ EVENT OATS REPORT OATE

[oa~jcoN~ ~L ~L 0 3 3 5 0 1 1 8 7 7 0 7 8 57 58 59 60 61 68 69 74 75 80 EVENT OESCRIPAON

~0 2 Durin surveillance testin the 1B Diesel Generator was started and loade 7 8 9 80 Q~g to 1500 KW. Aft r runnin for a ro ima 1 m' 7 8 80 Generator tri ed on lockout.. Within one hour the lA Diesel Generator wa 9

~0 4 7 8 9 80

+0 5 started and its ooerabilit demonstrated as re uired b Technical S ecifi a-e 9 80

[oat tion 3.8.1.1. Initial ins ection of the 1B Diesel Generator indicated 7 8 9 PSYCHE eo SYSTKM CAUSE COMPONENT COMPONB4T ENGINE COOE COOK COMPONKNT COOE SUPPlJgl

~oz~EE ~E A G 1 0 0 N 7 8 9 10 11 12 17 47 CAUSE OESCRIPTION

[oaej 7 8 9 80 Qg to be failure of the turbochar er as evidenced 7 8 5 b the resence of oil at 80

~10 7 89 80 FACUTY METHOO OF STATUS  % POWER OTHEA STATUS OSCOVERY OSCOVERY OESCAIPTION

~s ~os o . NA NA 7 8 9 10 12 13 44 45 46 80 FORM OF ACTMTY COATENT RELEASKO OF RELEASE AMOUNT OF ACTlWTY LOCATION OF RELEASE KQ2 L~J L~J NA NA 7 8 9 10 11 PERSONNEL EXPOSURES NUMBER TYPE OESCAIPTCN

~z Loaoo ~z NA 7 8 9 11 12 13 eo PERSONNEL INJURIES NUMBER OESCRPTION

~4 ~oo o NA 7 8 9 11 12 ao PROBABLE CONSEQUENCES Q~g NA 8 9 ao LOSS OR OAMAGE TO FACILITY TYPE 0ESC OPTION

~D Cost of re lacement of diesel turbochar er 7 89 10 80 PUSLICITY CD17 NA 7 8 9 80 AOOITIONAL FACTORS 89 a two for continuation of Event Descri tion and Cause Descri tion.

7 80 7 89 eo M. A. Scho man PHONEP 05 552-3779 eFO ~~ l ~ 44T

~ ~ ~

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 lB 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.