Service difficulty report · Exciter · Boeing 777222

Difficulty date
December 20, 2010
Submitted
December 22, 2010
Operation
Air carrier
Aircraft
N772UA
Make and model
Boeing 777222
Aircraft serial
26930
Aircraft time
61,135 hours, 11,248 cycles
Engine
Pwa PW4077
Part
Exciter
Part number
50U984
Part serial
40
Condition
Inoperative
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 IGNITOR L2 LT ENGINE FAILED TO IGNITE USING IGNITOR 2. REPEAT WRITEUP MSG-7461501 INACTIVE MODE. LT ENG IGNITOR 2 INOP. REPLACED LT ENGINE NR 2 IGNITER PLUG IAW AMM. REPLACED IGNITER LEAD AND EXCITER BOX IAW AMM. PERFORMED IGNITER PLUG TEST.