# SDR DALA2026071304120

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2026
- Submitted: July 14, 2026
- Operation: Air carrier
- Aircraft: [N142DU](https://openairdocs.org/aircraft/N142DU), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50060
- Aircraft time: 12,884 hours, 6,033 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Unwanted Deploy
- Location: Zone 200
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026071304120

## Discrepancy

PAX O2 MASKS DROPPED AUTOMATICALLY SEATS 10AB,17AB O2 MASK DOORS HAD TO BE PRYED OPEN 26AB DOOR STUCK HALFWAY OPEN.FLIGHT ATTENDANT STATION 2R O2 MASK DOOR DELAYED DEPLOYMENT. TRANSFERRED TO N/R'S, REF L/P 1691588,1691594,1691602 FOR R/R OF 02 PANELS,02 GENERATORS AND OPERATIONAL CHECKS. (LP# 8706294; AIRCRAFT WAS GROUNDED)

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