Service difficulty report · Pseu · Boeing 747422

Difficulty date
April 23, 2007
Submitted
May 18, 2007
Operation
Air carrier
Aircraft
N179UA
Make and model
Boeing 747422
Aircraft serial
25158
Aircraft time
67,612 hours, 8,426 cycles
Engine
Pwa PW4056
Part
Pseu
Part number
856917
Condition
Faulty
Location
Rt Body Mlg
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

THE -GEAR TILT- MSG DISPLAYED AFTER TAKEOFF. FLIGHT CREW DID NOT ATTEMPT TO RETRACT GEAR PER IRREG PROC 14.40.6. RETURNED TO HKG. CMC DOWNLINK SHOWS RIGHT BODY GEAR TRUCK TILT FAULTING BOTH PRIMARY & ALTERNATE PROX SWITCH. PROX SWITCH ELECTRONIC UNIT REPLACED PER MM 32-09-03. AFTER INSTALLATION, FOUND SATISFACTORY. NO MSG DISPLAYED. A/C RETURNED TO SERVICE.