Service difficulty report · Actuator · Boeing 767322

Difficulty date
December 19, 2011
Submitted
December 22, 2011
Operation
Air carrier
Aircraft
N657UA
Make and model
Boeing 767322
Aircraft serial
27112
Aircraft time
81,624 hours, 13,064 cycles
Engine
Pwa PW4060
Part
Actuator
Part number
550030019
Part serial
21
Condition
Unknown
Location
Ailerons
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

AILERON LOCKED LIGHT ON AT HIGH SPEED. EICAS MESSAGE AILERON LOCKOUT DISPLAYED. OUTBD AILERONS INDICATED NORMAL - LOCKED OUT. ANNUNCIATION DISPLAYED FOR APPROX 10 SECONDS. ACCOMPLISHED FIM 27-11-00 F104 AND FAULT BALLS FOR 'ADC' ON RIGHT SAM AND 'R AIL LOCK ACT' ON LEFT SAM BOTH RESET. ACCOMPLISHED FUNCTIONAL TEST OF AILERON LOCKOUT REF MM AND ALL OPS AND INDICATIONS GOOD, NO FAULT BALLS PRESENT. DUE TO PREVIOUS HISTORY OF AILERON LOCK EICAS MESSAGES REPLACE BOTH LT AND RT AILERON LOCK ACTUATORS PCN 563-9035 REF MM 27-11-44 OPBLM HANN DEC 18, 2011.