Service difficulty report · Transducer · Boeing 777222

Difficulty date
March 10, 2012
Submitted
March 30, 2012
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
65,724 hours, 9,606 cycles
Engine
Pwa PW40903
Part
Transducer
Part number
PTX30080093
Part serial
642
Condition
Faulty
Location
Rt Mlg Truck
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

AUTO SPEEDBRAKE FAILURE OF AUTO SPEEDBRAKE LEVER ACTUATOR OR FAILURE OF THE AUTO SPEEDBRAKE SYSTEM. ADVISORY MSG01- LATCHED APPROACH MODE DEPENDENT; GEAR TILT PRESSURE (R) SIGNAL IS LOW WHEN GEAR IS DOWN AND HYDRAULICS IS PRESSURIZED. DB- PRIMARY FLIGHT COMPUTER (RIGHT) MSG-2719510 LATCHD AP MODE. PER MEL 2762A, CIRCUIT BREAKERS PULLED, AND TRUCK TILT PRESSURE IS NORMAL. ACCOMPLISHED FIM 27-02 TASK 904 FOR MSG 27-19510. REPLACED RIGHT HYD TRUCK TILT PRESSURE TRANSDUCER M29211 PER MM. MAINTENANCE MESSAGE NO LONGER DISPLAYED. AUTO SPEEDBRAKE SYSTEM TESTS OKAY.