Service difficulty report · Pcu · Boeing 777222

Difficulty date
July 5, 2011
Submitted
August 2, 2011
Operation
Air carrier
Aircraft
N774UA
Make and model
Boeing 777222
Aircraft serial
26936
Aircraft time
62,722 hours, 12,036 cycles
Engine
Pwa PW4077
Part
Pcu
Part number
15441007
Part serial
042B
Condition
Faulty
Location
Flaperon
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FLT CTL SYSTEM FAULT DISPLAYED ON STATUS. AHM SHOWS LEFT INBD FLAPERON PCU COMMAND ISSUE. REF MSG 27-10300 FIM TASK 27-11 TASK 814. REPLACED LEFT INBD FLAPERON PCU PER MM. OPS CHECK GOOD, LEAK CHECK GOOD & TEST PASSED. CYCLED FLAPS & AILERONS, NO MESSAGES NOTED.