Service difficulty report · Transmitter · Boeing 747422

Difficulty date
July 3, 2011
Submitted
August 2, 2011
Operation
Air carrier
Aircraft
N175UA
Make and model
Boeing 747422
Aircraft serial
24382
Aircraft time
82,188 hours, 9,328 cycles
Engine
Pwa PW4056
Part
Transmitter
Part number
S250N1046
Condition
Faulty
Location
Aileron
Stage of operation
IN
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

LEFT INBD AILERON NOT RESPONDING NORMALLY DURING PRE TAKEOFF CHECK. AILERON POSITION INDICATING SYS INOP. VISUAL CONFIRMATION REQUIRED BEFORE EACH FLIGHT. REPLACED LEFT INBD AILERON POSITION TRANSMITTER PER MM.