Service difficulty report · Alternator · Boeing 777222

Difficulty date
March 3, 2013
Submitted
March 13, 2013
Operation
Air carrier
Aircraft
N792UA
Make and model
Boeing 777222
Aircraft serial
26934
Aircraft time
69,489 hours, 9,869 cycles
Engine
Pwa PW40903
Part
Alternator
Condition
Faulty
Location
Lt Eec
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

LEFT EEC IS IN A 'NO DISPATCH' CONFIGURATION. EEC MAY BE OPERATING WITH A LIMITED SET OF ENGINE CONTROL PARAMETERS AND MAY NOT BE CAPABLE OF CONTROLLING ALL ASPECTS OF ENGINE OPERATION. REPLACED PMA AS PER AMM, ALL OK NOW AFTER ENG OPERATION.