Service difficulty report · Exciter · Boeing 777222

Difficulty date
November 28, 2010
Submitted
December 6, 2010
Operation
Air carrier
Aircraft
N772UA
Make and model
Boeing 777222
Aircraft serial
26930
Aircraft time
60,853 hours, 11,205 cycles
Engine
Pwa PW4077
System (JASC)
7412 · Exciter
Part
Exciter
Part number
50U984
Part serial
127
Condition
Failed
Location
Lt Engine
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

ENG IGNITER L2 LEFT ENGINE FAILED TO IGNITE USING IGNITER 2. STATUS MESSAGE-7461501 INACTIVE ES MODE. REPLACED EXCITER MODULE, IGNITION LEAD AND IGNITION PLUG.