# SDR USAA920081527

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2008
- Submitted: August 20, 2008
- Operation: Air carrier
- Aircraft: [N172US](https://openairdocs.org/aircraft/N172US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1472
- Aircraft time: 26,563 hours, 9,462 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Sensor
- Part number: 666000077
- Condition: Defective
- Location: Landing Gear
- Stage of operation: AP
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA920081527

## Discrepancy

FLT 1544 PHX-CLT- LANDING GEAR - ON APPROACH INTO CLT, LANDING GEAR SYSTEM INDICATED LT MAIN UNSAFE.  AT GATE RECEIVED ECAM MESSAGE LANDING GEAR SYSTEM DISAGREE.  MAINTENANCE REMOVED AND REPLACED PROXIMITY SENSOR 15GA.  (S)

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