ML19256F109

LER 79-060/03L-0:on 791020,while Performing Load Test of Diesel Generator 12,operator Unable to Achieve Full Load. Caused by High Exhaust Temp on Cylinder 2 & Clogged Injectors.Injectors Overhauled & Adjusted

ML19256F109
Person / Time
Site:	Calvert Cliffs
Issue date:	11/15/1979
From:	Davis S, Pence W BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19256F107	List: ML19256F106 ML19256F109
References
LER-79-060-03L, LER-79-60-3L, NUDOCS 7911210439
Download: ML19256F109 (2)

Text

NRC FORM 366

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'A' r* 'Q' U. S. NUCLEAR REGULATORY COMMISSION (7-77) oe o S.. ENSEE EVENT REPORT CONTROL BLOCK: l l l l l 1 h (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI 7

olt 3 3 I" lo it c 19 il l@l0 l0 l- 1010 14 lo 0 0l-1010l@l4 111l111l@l LICENSE NuvaER 25 26 LICENSE TYPE JO l

57 CAT 58 l@

LICENSEE CODE '5 CCN'T Ol' 7 2 SO[$"C[ 60 l l }@l 015 61 10 10 10 3Il17i@l110 OOCKETP.UYSER . 68 69 2101719}@l111Il151710 EVENT DATE 74 75 REPORT DATE 80l@

EVENT DESCRIPTION AND PROBABLE CONSECUENCES h o 2 l'lhile cerformino a load test of 312 diesel cenerator, the onerator was I o 3 l unable to achieve full load (2500 kwl due to hich exhaust temoerature  !

o . lon nurber 2 cylinder. The diesel was olaced out of service at 1940 in i o !s l accordance wi th T.S. 3.8.1.1. The redundant pcwer supplies remained I o e Icoerable durino the event. 312 diesel cenerator was returned to service l 0l7 l at 1820 on 10/22/79. Unit 2 was in rode 6. This is not a recetitive 1 0 a Ioccurrence. I 7 8 9 80 DE CODE SUSC E COMPONENT CODE SUBCbdE SU E O 9 l E lE l@ [EJ@ lB l@ l El Nj Gl II N j El@ l Z j@ lZ l@ 20 7 8 9 10 11 12 13 18 19 SEQUENTI AL OCCURRENCE REPORT REVISION LE R EVENT YEAR REPORT NO. CODE TYPE NO.

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l7 l9 l l_[ 0l 6l 0l l -l [0l3l lL l l_ 0l 21 22 23 24 26 27 28 29 30 31 32 AK N AC O T M 22 S8 i FOR 9. SU Li R MANUFA RER 33 B lgl34G [g l5ON 3 P[g lE MZ lg 36 3l7 0l 0 HOUR'0 40 l [Yj@

41 , l lY l@ l43 Zl@ l Fl 0l 1 44 O l@

42 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i o lThe enaine was inspected and the injectors were found to be clocaed and out I i 1 lof ad.iustment. All injectors on #12 Diesel were overhauled and adiusted. I i 7 lWhen #12 Diesel Generator was placed back in service, the remaininc Diesel i i 3 l Generators (#11 and #21) had their in_iectors insoected and ad.iusted as I i ., ;necessary. ,

7 8 9 80 ST *nPOWER OTHER STATUS IS V RY DISCOVERY CESCRIPTION 1

sI LE.j @ l 11 01 Ol@ l N/A l l Cl@l Test for I&E Bulletin 79-23 l ACTIVITY CO TENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE l N/A l L' LJ8 LZJ

'7 9

@ ltoZI@l N/A 11 44 l

45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION i

71 10 l 010 l@l Z l@l N/A PERSONNE L INJURIES NuuBER DESCRIPTION @ J[3I L'_LJl0l010l@l 7 8 9 11 12 N/A I 0

f55 E *"PTION' ' " @

ESC i 9 LZ,,J @l M/A '7 911 a 10 w l 7 8 9 10 f 80 DESCRIPTION

• 2 a IN ISSUE @l M/A IfIIIllill11 5 7 8 9 to 68 69 80 3 NAME OF PREPARER

3. M. aVi s /ll. B. Pence PHONE:

(30112ea_70ap / 7997 2

LEP 5:0, 79-60/3L DOC::ET NO. 50/317 EVENT DATE 10/20/79 DEc0RT CATE 11/15/79 ATTACH"ENT CAUSE CESCRIPTION AND CORRECTIVE ACTION: (CONTINUED)

The injectors are currently inspected every 18 months on STP M-20-0. The orevent ive maintenance crocram for the Diesel Generators is currently being changed, with concurrence of the vendor, to include inspection of the injectors on a semi-annual basis to ronitor for trends. -

13/S 5S8