Service difficulty report · Pcu · Boeing 777222

Difficulty date
May 28, 2011
Submitted
June 1, 2011
Operation
Air carrier
Aircraft
N219UA
Make and model
Boeing 777222
Aircraft serial
30551
Aircraft time
43,367 hours, 5,336 cycles
Engine
Pwa PW40903
Part
Pcu
Part number
15482001
Part serial
754
Condition
Faulty
Location
Nr 1
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

FLIGHT CONTROL SYS ANY CONDITION OF THE FLIGHT CONTROL SYSTEM OR IT'S SYSTEM INTERFACES WHICH WOULD PREVENT DISPATCH. FLIGHT CONTROLS SYSTEM BELOW MINIMUM DISPATCH REQUIREMENTS. STATUS MSG01- LATCHED INITIAL CLIMB HARD; RUDDER POWER CONTROL UNIT (UPPER) EHSV TRANSDUCER HAS FEEDBACK FAULT. DB- PRIMARY FLIGHT COMPUTER (RIGHT) MSG-2711407 LATCHD IC HARD. REPLACED UPPER RUDDER PCU PER AMM. MAT TEST PASSED. ACCOMPLISHED CHECK OF CONNECTOR AT THE BACK OF THE CENTER ACE, PERFORMED RUDDER ACTUATOR GRD TEST AND RUDDER POSITION TEST, ALL TEST NORMAL, ALL MSG CLEARED ALL TESTS PASS.