Service difficulty report · Exciter · Boeing 777222

Difficulty date
July 28, 2009
Submitted
July 29, 2009
Operation
Air carrier
Aircraft
N799UA
Make and model
Boeing 777222
Aircraft serial
26926
Aircraft time
49,893 hours, 7,333 cycles
Engine
Pwa PW40903
System (JASC)
7412 · Exciter
Part
Exciter
Part number
50U984
Part serial
102
Condition
Failed
Location
Lt Engine
Stage of operation
IN
How discovered
O
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

ENG IGNITER L2 LEFT ENGINE FAILED TO IGNITE USING IGNITER 2. STATUS MSG01- NOT ACTIVE ENGINE START MODE DEPENDENT; IGNITION SYSTEM NR 2 (L ENG) FAILED TO LIGHT ENGINE. DB- ELECTRONIC ENGINE CONTROL (L ENG, CH B) MSG-7461501 INACTV ES MODE. REPLACED EXCITER AND REPLACED PLUG.