SDR ASOA01153S

Service difficulty report · Servo · Emb EMB120RT

Difficulty date
August 31, 2001
Submitted
November 9, 2001
Operation
Air carrier
Aircraft
N275AS
Make and model
Emb EMB120RT
Aircraft serial
120234
Part
Servo
Condition
Worn
Location
Elevator
Stage of operation
CR
How discovered
O
Nature of condition
F
Precautionary procedure
K

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

What was found

FLT 4810 - DURING FLIGHT, REPORTED THAT THE A/C WAS HARD TO CONTROL. WHEN THE AUTOPILOT WAS DISCONNECTED, THE ELEV AND RUDDER WERE HEAVY AS IF THEY WERE STILL CONNECTED TO THE AUTOPILOT. PULLED THE AUTOPILOT CIRCUIT BREAKERS, BUT THIS DIDN`T FIX THE PROBLEM. DECLARED AN EMERGENCY AND A/C LANDED IN TUL WITHOUT INCIDENT. THE TEARDOWN REPORT STATE THERE WERE PROBLEMS WITH THE ELEV TRIM SERVO AS WELL AS THE RUDDER SERVO MOUNT. THE ELEV TRIM SERVO WAS FOUND TO HAVE A WORN CLUTCH WHICH COULD CAUSE THE TRIM SERVO TO ENGAGE AND DISENGAGE IMPROPERLY. THE TEARDOWN ON THE RUDDER SERVO MOUNT FOUND THAT THE CAPSTAN WAS WORN MORE THAN USUAL. BOTH COMPONENTS WILL BE OVERHAULED. (M)

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