Service difficulty report · Actuator · Boeing 747422

Difficulty date
August 24, 2009
Submitted
August 26, 2009
Operation
Air carrier
Aircraft
N121UA
Make and model
Boeing 747422
Aircraft serial
29167
Aircraft time
43,274 hours, 5,156 cycles
Engine
Pwa PW4056
Part
Actuator
Part number
191AC1AR193A
Part serial
985
Condition
Failed
Location
Cart Lift
Stage of operation
NR
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

CART LIFT FAILED, GIVING OFF STRONG ELECTRICAL SMELL. CART IS STUCK IN UP POSITION. REPLACED CART LIFT ACTUATOR.