# SDR REXA2017050900578

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 9, 2017
- Submitted: May 11, 2017
- Operation: Air carrier
- Aircraft: [N8891A](https://openairdocs.org/aircraft/N8891A), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7891
- Aircraft time: 26,935 hours, 24,964 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MC1035101
- Part serial: 107480I
- Condition: Inoperative
- Location: Cockpit
- Stage of operation: UK
- 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/REXA2017050900578

## Discrepancy

OBSERVERS O2 MASK MICROPHONE INOPERATIVE. REMOVED AND REPLACED OBSERVERS O2 MASK P/N ON/OFF MC10-35-101 S/N OFF 107480I S/N ON 96368I IAW AMM 35-11-12. OPS/LEAK CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
