# SDR AALA202604205164

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2026
- Submitted: April 20, 2026
- Operation: Air carrier
- Aircraft: [N916US](https://openairdocs.org/aircraft/N916US), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6420
- Aircraft time: 36,376 hours, 14,929 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Bushing
- Condition: Migrated
- Location: Zone 800
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202604205164

## Discrepancy

AIRCRAFT WAS GROUNDED: CATERING REPORTS: GUST LOCK ON 4L DOOR WILL NOT ENGAGE. MAINTENANCE FOUND THE GUST LOCK PIN ROD LOWER NYLON BUSSHING MIGRATED OUT OF PLACE WHICH CAUSED THE MECHANISM TO BIND. MAINTENANCE REPLACED THE LOWER GUIDE AND INSTALLED A NEW NYLON BUSHING PER AMM 52-13-12. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES REPORTED.

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