# SDR DXTA2025100205176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2025
- Submitted: October 2, 2025
- Operation: Air carrier
- Aircraft: [N271QS](https://openairdocs.org/aircraft/N271QS), registered now
- Make and model: Emb EMB-545
- Registry model: [EMB EMB-545](https://openairdocs.org/model/embraer-s-a-emb-545) (OpenAirDocs)
- Aircraft serial: 55010160
- Aircraft time: 272 hours, 229 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Unwanted Deploy
- Location: Zone 200
- Stage of operation: TX
- How discovered: O
- Nature of condition: W
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2025100205176

## Discrepancy

CREW INADVERTENTLY DEPLOYED THE PASSENGER OXYGEN MASKS DURING THE COCKPIT PREPARARION FLOW.  ALL MASKS IN CABIN DEPLOYED, ALL PINS ARE STILL IN PLACE. CORRECTIVE ACTION: PERFORMED STOWAGE OF PASSENGER OXYGEN MASKS AS REQUIRED. REINSTALLED CARTRIDGES AND CLOSED DOORS. REF. EMB-545-MOD AMM 35-20-01.

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