05000348/LER-1981-067-03, /03L-0:on 810927,during Operability Test,Diesel Generator 2C Declared Inoperable After Tripping Under Load. Caused by High Crankcase Pressure Due to Scored Cylinder Liner 8 W/Faulty O-ring Allowing Water to Enter

/03L-0:on 810927,during Operability Test,Diesel Generator 2C Declared Inoperable After Tripping Under Load. Caused by High Crankcase Pressure Due to Scored Cylinder Liner 8 W/Faulty O-ring Allowing Water to Enter

ML20011A795
Person / Time
Site:	Farley
Issue date:	10/26/1981
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20011A793	List: 05000348/LER-1981-067, Forwards LER 81-067/03L-0 05000348/LER-1981-067-03, /03L-0:on 810927,during Operability Test,Diesel Generator 2C Declared Inoperable After Tripping Under Load. Caused by High Crankcase Pressure Due to Scored Cylinder Liner 8 W/Faulty O-ring Allowing Water to Enter
References
LER-81-067-03L, LER-81-67-3L, NUDOCS 8111030224
Download: ML20011A795 (2)

LER-1981-067, /03L-0:on 810927,during Operability Test,Diesel Generator 2C Declared Inoperable After Tripping Under Load. Caused by High Crankcase Pressure Due to Scored Cylinder Liner 8 W/Faulty O-ring Allowing Water to Enter

Event date:
Report date:
3481981067R03 - NRC Website

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gj3j [ Generator 2C was declared inoperabl_e whe_n it. tripped under 1_oa.d.__Iech,_Sgm._3.BAL__J g gg [in part, requires DG 2C to be operable. Tech. Sp.ec. 3.8.1.1 action s tatement.requira-J [yyg jments were met. Health / safety of the public was not affected.

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[T_[i] (cylinder liner had been scored and that the number 8 cylinder "0" r.ing_was_ faulty._whichi Fi"T 1 lallowed water to enter the cylinder.

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.N LER 81-067/03L-0 10-26-81 CAUSE DESCRIPTION AhD CORRECTIVE ACTIONS (Continued) replace all 12 cylinder liners.

Following the completion of repairs and success-ful testing, DG 2C was returned to service at 1020 on 10-6-81.

(NOTE: A temporary waiver of the Unit 2 Tech. Spec. action statement requiring Unit 2 shutdown was granted by the NRC for a total of 17 days of inoperability.) This is the third (3rd) failure in the last 100 valid tests.