Service difficulty report · Actuator · Boeing 737522

Difficulty date
September 10, 2007
Submitted
December 18, 2007
Operation
Air carrier
Aircraft
N929UA
Make and model
Boeing 737522
Aircraft serial
26652
Aircraft time
42,302 hours, 30,899 cycles
Engine
Ge CFM56*
Part
Actuator
Condition
Out Of Adjust
Location
Rudder
Stage of operation
NR
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

IN MANUAL REVERSION THE AIRCRAFT ROLLS LEFT REQUIRING HARD RIGHT YOKE JO MAINTAIN LEVEL. STANDBY RUDDER ACTUATOR OUT OF ADJUSTMENT (A/C FLOWN IN MANUAL REVERSION DUE TO FLIGHT CONTROL WORK ACCOMPLISHED AT HMV). DURING ATTEMPT AT LEVEL FLIGHT IN MANUAL REVERSION, PILOTS HAD TO APPLY 3.5 UNITS RUDDER TO DO SO. STANDBY RUDDER ACTUATOR WAS NOT ABLE TO BE ADJUSTED. REPLACED AND ALSO RE-RIGGED AILERON CABLES. FOLLOWING TEST FLIGHT WAS OK.