# SDR REXA2017120701229

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2017
- Submitted: December 8, 2017
- Operation: Air carrier
- Aircraft: [N8943A](https://openairdocs.org/aircraft/N8943A), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7943
- Aircraft time: 21,283 hours, 20,846 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Condition: Broken
- Location: Captain'S
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/REXA2017120701229

## Discrepancy

CA SIDE OXYGEN MASK TAB BROKEN
SWAPPED CA SIDE OXY MASK BOX WITH OBSERVERS MASK BOT PER AMM 35-11-15. DEFFERED OBSERVERS SEAT AND MASK PER MEL 35-10-1 MOC NOTIFIED #98765  PLACARD INSTALED & MEI 25-12-A1/// REMOVED AND REPLACED OBSERVER O2  MASK IAW CRJ200 AMM 35-11-12. OPS & LEAK CHECK GOOD. MM02 UPDATED.    PLACARD REMOVED. MOC #53430 NOTIFIED. THIS CLEARS THE OBSERVER SEAT MEL 25-12-1A.

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