# SDR AALA202009109004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2020
- Submitted: September 10, 2020
- Operation: Air carrier
- Aircraft: [N122NN](https://openairdocs.org/aircraft/N122NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6252
- Aircraft time: 20,234 hours, 5,710 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Proximity Sensor
- Part number: ABS012140
- Condition: Inoperative
- Location: Cargo Door
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202009109004

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING CLIMB, CONTINUOUS AND INTERMITTENT FAULT INDICATION FOR DOOR AFT CARGO AND AFT CARGO HEAT. FLIGHT AIR INTERRUPTED AND RETURNED TO DFW. REPLACED AFT CARGO DOOR HANDLE PROXIMITY SWITCH SENSOR (AALA202009109004) WITH NEW IAW AMM 52-71-12, OPS CHECK GOOD. ALSO REPLACED AFT CARGO TEMPERATURE SENSOR (AALA202009109008) WITH NEW IAW AMM 21-43-15, OPS CHECK GOOD.

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