# SDR BJNA20170316002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 2017
- Submitted: March 17, 2017
- Operation: Air carrier
- Aircraft: N625XA
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Aircraft serial: 32625
- Aircraft time: 45,519 hours, 21,717 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Switch
- Condition: Broken
- Location: Oxygen Mask
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/BJNA20170316002

## Discrepancy

ON PRE-FLIGHT, THE FIRST OFFICER`S OXYGEN MASK, 100% SWITCH BROKE OFF.

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