Service difficulty report · Computer · Boeing 777222

Difficulty date
June 25, 2012
Submitted
July 24, 2012
Operation
Air carrier
Aircraft
N769UA
Make and model
Boeing 777222
Aircraft serial
26921
Aircraft time
68,356 hours, 12,276 cycles
Engine
Pwa PW4077
Part
Computer
Part number
4917711
Part serial
76
Condition
Faulted
Location
Posit 1
Stage of operation
NR
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

CREW REPORTS ACFT REQUIRED SIGNIFICANT AILERON TRIM INPUT, FOUND LEFT FLAPERON DRIFTING UP. REACHED POINT TO AFFECT ACFT STABILITY AND SNAPPED BACK DOWN. ON GROUND HAD LEFT PFC LANE FAULT AND ACE L2 FAILED GROUND TEST. REPLACED LEFT PFC AS PER AMM, ALL TEST PASSED. REPLACED L2 ACE AS PER AMM, ALL TEST SUCCESSFUL. ALSO CHECKED WIRING ON NR 10 SPOILER, FOUND OK. ACCOMPLISHED TEST AS PER FIM 27-61-809-810, ALL OK. ACFT OK FOR SERVICE.