Service difficulty report · Actuator · Cessna 560XL

Difficulty date
February 12, 2019
Submitted
February 14, 2019
Operation
Air carrier
Aircraft
N602QS
Make and model
Cessna 560XL
Aircraft serial
5605518
Aircraft time
12,202 hours, 9,625 cycles
Part
Actuator
Part number
666061312
Part serial
5902
Condition
Out Of Limits
Location
Rudder
Stage of operation
CL
How discovered
O
Nature of condition
F
Precautionary procedure
A

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

What was found

DURING TAKEOFF AND CLIMB COPILOTS RIGHT OUT BOARD PEDAL COULD NOT BE MOVED. WITH AUTO PILOT AND YAW DAMP OFF FROM COPILOTS SIDE RIGHT RUDDER (OUTBOARD PEDAL) COULD NOT BE MOVED. FROM PILOT SIDE INFLIGHT WITH AUTO PILOT AND YAW DAMP OFF RIGHT PEDAL COULD WHEN PUSHED BE MOVED BUT SEEMED VERY STIFF AND MUCH HARDER TO PUSH THAN THE LEFT PEDAL. ONCE WE RETURNED FOR LANDING RUDDER FUNCTION SEEMED TO PERFORM NORMAL DURING TAXI BACK TO RAMP. DISCONNECTED NWS BUNGEE FROM STEERING ARM, CONNECTED AFTER PEDAL STIFFNESS TEST. PERFORMED RUDDER PEDAL STIFFNESS TEST IAW MM 27-20-05. FOUND ALL PEDALS IN BOTH DIRECTIONS BREAKING OUT AT 19-20 LBS. NO GRAININESS OR INCONSISTENCY FOUND IN RUDDER PEDAL MOVEMENT, IAW THE MANUAL, THE ACTUATOR IS ACCEPTABLE. REPLACED THE RUDDER BIAS ACTUATOR, DETENSIONED RUDDER BIAS CABLE, RUDDER BIAS ACTUATOR, TENSIONED RUDDER BIAS CABLE AND SAFETIED TURNBARREL. PERFORMED RUDDER BIAS OPS CHECK AND RUDDER PEDAL STIFFNESS TEST. RUDDER PEDAL BREAKOUTS IMPROVED TO 16-17 LBS. WITHIN MM LIMITS. LEAK CHECKED RUDDER BIAS ACTUATOR BLEED AIR FITTINGS. ORIGINAL SUBMISSION DATE. 02/13/2019

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