# SDR AALA202202160766

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2022
- Submitted: February 16, 2022
- Operation: Air carrier
- Aircraft: [N716UW](https://openairdocs.org/aircraft/N716UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1055
- Aircraft time: 60,507 hours, 35,422 cycles
- System (JASC): [2721 · Rudder Tab Control System](https://openairdocs.org/jasc/2721)
- Part: Control Servo
- Part number: 31075840
- Part serial: 23646
- Condition: Defective
- Location: Rudder Trim
- Part time: 23,085 hours, 9,242 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202202160766

## Discrepancy

AIRCRAFT WAS GROUNDED: ON STRAIGHT FLIGHT COURSE AT .80M, AIRCRAFT MAINTAINS A 2-3Ï¿½ RIGHT BANK WITH 1.9-2.0 UNITS OF LEFT RUDDER TRIM. TRIED W/BOTH A/P- SAME RESULTS **ORIGINAL REPORT WAS AALA202201108699: MAINTENANCE ACCOMPLISHED INSPECTIONS AND ADJUSTMENT VERIFICATION'S OF ALL OF THE FLIGHT CONTROLS AS OUTLINED IN THE TROUBLESHOOTING EA 333283. IN ADDITION, THE FOLLOWING ITEMS WERE REPLACED DURING THE TROUBLESHOOTING OF THIS EVENT: RIGHT AILERON HINGES 1 THRU 5 (AALA202201108885, AALA202201102367, AALA202201108855, AALA202201109531, AALA202201104153), LEFT AILERON BLUE SERVO CONTROL (AALA202201108699), FLIGHT AUGMENTATION COMPUTER (FAC) #1 (AALA202202166400) AND # 2 (AALA202202166154), LEFT AILERON GREEN SERVO CONTROL (AALA202202161230), RIGHT AILERON BLUE SERVO CONTROL (AALA202202164938), RUDDER TRAVEL LIMITATION UNIT ELECTRONIC MODULE (AALA202202168563), RUDDER TRAVEL LIMITING UNITS (AALA202202167200 AND AALA202202166897), RUDDER TRIM ACTUATOR (AALA202202160864), LEFT ELEVATOR BLUE SERVO CONTROL (AALA202202160766), LEFT ELEVATOR GREEN SERVO CONTROL (AALA202202166988) AND LEFT WING SPOILER #2 GREEN SERVO CONTROL (AALA202202168289) A SATISFACTORY OPERATIONAL TEST FLIGHT WAS ACCOMPLISHED AND NO ISSUES WERE NOTED,

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