# SDR DALA2026102605850

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2026
- Submitted: October 26, 2026
- Operation: Air carrier
- Aircraft: [N335NB](https://openairdocs.org/aircraft/N335NB), registered now
- Make and model: Airbus A319-114
- Registry model: [Airbus A319-114](https://openairdocs.org/model/airbus-a319-114) (OpenAirDocs)
- Aircraft serial: 1662
- Aircraft time: 62,843 hours, 32,795 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Amu
- Part number: AMU2790CB06
- Part serial: 1824
- Condition: Inoperative
- Location: Zone 100
- Part time: 63,471 hours, 32,767 cycles
- Stage of operation: TX
- 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/DALA2026102605850

## Discrepancy

CREW REPORTS F/O'S O2 MASK MIC IS INOP. T/S IAW TSM 23-51, REPLACED AMU PERFORMED OP CK, OK FOR SVC. (LP: 9100196, AIRCRAFT WAS GROUNDED)

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