Service difficulty report · Heat Exchanger · Doug MD11F

Difficulty date
August 16, 2010
Submitted
August 17, 2010
Operation
Air carrier
Aircraft
N618FE
Make and model
Doug MD11F
Aircraft serial
48754
Aircraft time
50,118 hours, 10,984 cycles
Engine
Ge CF680
Part
Heat Exchanger
Part number
1601425
Part serial
1035
Condition
Failed
Part time
5,970 hours, 1,274 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A, E, J

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

PASSING FL200, RECEIVED LEVEL 2 "ENG 1 OIL TEMP HI" FOLLOWED BY DECREASING OIL QUANTITY AND DECREASING PRESSURE. NR1 ENGINE WAS SHUTDOWN IAW CHECKLIST AFTER OIL QUANTITY REACHED ZERO. OIL TEMP PEAKED AT 167 DEG. AFTER SHUTDOWN NOTICED OIL QUANTITY INCREASING FROM 0 TO 19 OVER A 20 MINUTE PERIOD. ELECTED TO RESTART ENGINE AFTER DUMPING FUEL AND NR1 ENGINE OPERATED NORMALLY THEREAFTER. R & R FUEL/OIL HEAT EXCHANGER IAW MM 79 -21-02-4. PERFORMED NR1 ENG SPECIAL INSP, NO-OIL-PRESSURE INSP, A AND D SUMP VENT INSP, OIL SYS CONTAMINATION INSP & ENGINE POST-WINDMILLING INSP SATIS IAW AMM 72-00-05-6 1. PERFORMED NR1 ENG DRY & WET MOTOR, MIN IDLE LEAK CHECK OK IAW JRH. LATCHED NR1 ENG COWLING IAW AMM 71-10-00-21. RAN NR1 ENG FOR MIN/APPR IDLE IAW JRH, FOUND ALL PARAMETER NORMAL. RECHECKED OIL TANK WITH NO FUEL CONTAMINATED.

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