# SDR AALA202409256064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2024
- Submitted: September 25, 2024
- Operation: Air carrier
- Aircraft: [N920US](https://openairdocs.org/aircraft/N920US), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6490
- Aircraft time: 29,960 hours, 12,322 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Sensor
- Part number: E21336000
- Part serial: 10423
- Condition: Defective
- Location: Zone 700
- Part time: 51,402 hours, 28,367 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202409256064

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO PLS DUE TO THE FLIGHT CREW REPORTING THAT THE LANDING GEAR WOULD NOT RETRACT ALONG WITH A LANDING GEAR SHOCK ABSORBER ECAM FAULT MESSAGE. THE AIRCRAFT LANDED SAFELY AT PLS WITHOUT FURTHER INCIDENT. **ORIGINAL REPORT WAS AALA202409031453** MAINTENANCE REPLACED NOSE LANDING GEAR LOCK SPRINGS, NOSE LANDING GEAR SHOCK ABSORBER (AALA202409256146), NOSE LANDING GEAR TURNING TUBE (AALA202409251656), NOSE WHEEL STEERING FEEDBACK SENSORS 3GC LEFT (AALA202409250786), 4GC RIGHT (AALA202409256064). A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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