Service difficulty report · Sensor · Boeing 747422

Difficulty date
July 27, 2016
Submitted
July 27, 2016
Operation
Air carrier
Aircraft
N120UA
Make and model
Boeing 747422
Aircraft serial
29166
Aircraft time
69,566 hours, 7,871 cycles
Part
Sensor
Part number
893501FS
Condition
Failed
Location
Mlg
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

CREW REPORTS AFTER RAISING GEAR LEVER GEAR DISAGREE & GEAR TILT CAUTION MESSAGES DISPLAYED AND GEAR DID NOT RETRACT. SEVERAL ASSOCIATED STATUS MESSEGES ALSO DISPLAYED. GEAR IS NOW DOWN AND LOCKED WITH NORMAL DOWN INDICATIONS AFTER LT MLG TILT SENSOR REPLACEMENT AND GEAR RETRACTION TEST AN D EXTENSION NORMAL IAW AMM 32-32-00