# SDR AALA201801189008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2018
- Submitted: January 22, 2018
- Operation: Air carrier
- Aircraft: [N170US](https://openairdocs.org/aircraft/N170US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1462
- Aircraft time: 57,326 hours, 21,490 cycles
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Hinge Arm
- Condition: Worn
- Location: Rt Elevator
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201801189008

## Discrepancy

WHILE TROUBLESHOOTING AN AIRFRAME VIBRATION ISSUE, MAINTENANCE FOUND SIGNS OF WEAR AND VISIBLE VERTICAL MOVEMENT WAS OBSERVED IN THE RIGHT ELEVATOR NR 4 HINGE ARM FITTING.  REPLACED THE HINGE ARM FITTING IAW AMM 55-16-42.  AIRCRAFT WAS GROUNDED.

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