# SDR MTNA20250401001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2025
- Submitted: April 2, 2025
- Operation: Air carrier
- Aircraft: [N909FX](https://openairdocs.org/aircraft/N909FX), registered now
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Aircraft serial: 275
- Aircraft time: 31,289 hours, 34,567 cycles
- System (JASC): [3500 · Oxygen System](https://openairdocs.org/jasc/3500)
- Part: Regulator
- Condition: Leaking
- Location: Oxygen System
- Part time: 31,196 hours, 34,511 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MTNA20250401001

## Discrepancy

OXYGEN SYSTEM TRANSMITTER / REGULATOR SLOWLY LEAKING.

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