# SDR DALA2026062903843

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2026
- Submitted: June 30, 2026
- Operation: Air carrier
- Aircraft: [N940AT](https://openairdocs.org/aircraft/N940AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55004
- Aircraft time: 66,611 hours, 47,981 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Condition: No Test
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026062903843

## Discrepancy

CAPT O2 MASK FAILED TEST.  R & R FO'S CREW O2 MASK PER B717 AMM 35-23. (6545751) (AIRCRAFT GROUNDED).

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