# SDR AALA201901229025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2019
- Submitted: February 1, 2019
- Operation: Air carrier
- Aircraft: [N556UW](https://openairdocs.org/aircraft/N556UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5244
- Aircraft time: 21,475 hours, 8,599 cycles
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Bearing
- Condition: Worn
- Location: Elevators
- Stage of operation: DE
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201901229025

## Discrepancy

MODERATE TO SEVERE TAIL VIBRATION DURING DECENT.  DESCENDING OUT OF 27K FT 300-320 KTS SPEED BRAKES AT 1/2. SLOWING TO 290 VIBRATIONSTOPPED. ELEVATOR FLUTTER.  THE AIRCAFT WAS GROUNDED.  REMOVED THE LT & RT ELEVATORS HINGE BEARINGS,

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