Service difficulty report · Eec · Boeing 777222

Difficulty date
April 26, 2001
Submitted
May 16, 2001
Operation
Air carrier
Aircraft
N786UA
Make and model
Boeing 777222
Aircraft serial
26938
Aircraft time
18,863 hours, 2,906 cycles
Engine
Pwa PW4090
Engine time
14,713 hours, 2,621 cycles
Part
Eec
Part number
8228305
Part serial
41710027
Condition
Out Of Tolerance
Location
Lt Engine
Part time
14,713 hours, 2,621 cycles
Component
Engine · Pwa · PW40903
Stage of operation
TO
How discovered
O
Nature of condition
R, J
Precautionary procedure
O

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

What was found

ON T/O, WHEN ENGAGING AT UPON THRUST APPLICATION, LT ENG LAGGED BEHIND RT, ADDED THROTTLE MANUALLY, EVENTUALLY ALL THE WAY TO STOP EPR WAS PEGGED 1.395 (1.444=REDUCED TO) WITH RT ENG. AT 1.44. ENGS NORMAL OPS AT SETTING OF CLIMB. REPLACED ELECTRONIC ENGINE CONTROL AND ACCOMPLISHED HIGH POWER RUN-UP. EEC INTERNAL PRESSURE SENSOR FOR P2 WAS FOUND HIGH OUT OF LIMITS.