Service difficulty report · Eec · Boeing 777223

Difficulty date
July 31, 2024
Submitted
August 8, 2024
Operation
Air carrier
Aircraft
N768AA
Make and model
Boeing 777223
Aircraft serial
33540
Aircraft time
67,868 hours, 8,406 cycles
Engine
Rroyce RB211*
Part
Eec
Part number
EEC900010
Part serial
BX46902
Condition
Faulty
Location
Zone 500
Part time
46,553 hours, 6,386 cycles
Stage of operation
CR
How discovered
V
Nature of condition
J
Precautionary procedure
A

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

What was found

AIRCRAFT WAS GROUNDED: EICAS MESSAGE ENG FUEL FILTER L. FOLLOWED BY STATUS MESSAGES: EN,G SCAV OIL FILT L, ENG HP OIL FILT L, ENG FUEL FILT L, ENG OPU L,, ENG TURB OVSP SYS L, ENG EEC C1 L. CREW DECIDED TO DIVERT TO JFK. MAINTENANCE REPLACED EEC AND DEDICATED ALTERNATOR PER MM 73-21-11 AND MM 73-21-14. PERFORMED ENG RUN UP USING BOTH CHANNELS, ALL ENG PARAMETERS NORMAL WITH NO FAULTS. REF. 71-00-00.