# SDR IPXA2026012802866

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2026
- Submitted: January 28, 2026
- Operation: Air carrier
- Aircraft: [N166UP](https://openairdocs.org/aircraft/N166UP), registered now
- Make and model: Airbus A300 F4-622R
- Registry model: [Airbus A300 F4-622R](https://openairdocs.org/model/airbus-a300-f4-622r) (OpenAirDocs)
- Aircraft serial: 0861
- Aircraft time: 25,029 hours, 14,978 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Processing Unit
- Part number: BDM3003
- Part serial: 574
- Condition: Faulted
- Location: Door Sensor
- 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/IPXA2026012802866

## Discrepancy

DIVERTED,  ON GEAR RETRACTION, ECAM MLG DOORS NOT CLOSED. ? (LEFT MAIN DOOR). TROUBLESHOT IAW TSM 32-61-00/101. FOUND PROXIMITY DETECTOR PROCESSING UNIT FAILING (54GB). REMOVED AND REPLACED PROXIMITY DETECTOR PROCESSING UNIT IAW AMM 32-31-71-401. SYSTEM OP CHECKED GOOD. OK TO CONTINUE.

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