Service difficulty report · Trim System · Airbus A300F4605R

Difficulty date
November 26, 2024
Submitted
November 26, 2024
Operation
Air carrier
Aircraft
N688FE
Make and model
Airbus A300F4605R
Aircraft serial
874
Aircraft time
22,441 hours, 13,056 cycles
Part
Trim System
Condition
Malfunctioned
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

RUDDER TRIM REQUIRED 18 UNITS OF RIGHT TRIM TO FLY COORDINATED AT CRUISE. PER CREW DEBRIEFING AT LAX, THEY EXPLAINED THAT AFTER ENGINE START AT LBB THEY GOT PITCH FEEL SYS 2 FAULT AND RUDDER TRAVEL SYS FAULT. THEY RESET THE SWITCHES AND FAULT CLEARED, DURING TAKE OFF PILOT FELT THE A/C PULLING TO THE RIGHT MORE OF THEM NORMAL AND AFTER AIRBORNE A/C STARTED TO AGGRESSIVELY PULL TO THE RIGHT, THAT`S WHEN THEY STARTED TO APPLY A LARGE AMOUNT OF AILERON TRIM TO COMPENSATE FOR THE 19 UNITS OF RUDDER TRIM. THIS SETTING WAS KEPT THROUGHOUT THE FLIGHT ALL THE WAY UNTIL THEY START DESCENT. THEY DISCONNECTED THE A/P AND STILL PERFORMING THE SAME BUT WITH A LITTLE LESS TRIM INPUT.

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