# SDR AALA201712069029

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 2017
- Submitted: December 8, 2017
- Operation: Air carrier
- Aircraft: [N507AY](https://openairdocs.org/aircraft/N507AY), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3712
- Aircraft time: 32,626 hours, 11,477 cycles
- System (JASC): [3220 · Nose/Tail Landing Gear](https://openairdocs.org/jasc/3220)
- Part: Hinge Pin
- Condition: Worn
- Location: Mlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201712069029

## Discrepancy

AIRCRAFT WAS GROUNDED. VERY EXCESSIVE NOSE WHEEL VIBRATION AFTER ROTATION ON TAKE OFF. MAINTENANCE FOUND CENTER HINGE PIN FOR TORQUE LINK WORN. REPLACED CENTER HINGE PIN PER AMM 32-21-27.

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