# SDR AWXA200200487

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2002
- Submitted: June 3, 2002
- Operation: Air carrier
- Aircraft: N335AW
- Make and model: Boeing 737-3U3
- Registry model: [Boeing 737-3U3](https://openairdocs.org/model/boeing-737-3u3) (OpenAirDocs)
- Aircraft serial: 28740
- Aircraft time: 11,257 hours, 7,103 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: 174660N5
- Part serial: 06011
- Condition: Defective
- Location: Cockpit
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA200200487

## Discrepancy

PHX - EMERGENCY EQUIPMENT - EXHALE FUNCTION OF CAPTAINS EMERGENCY OXYGEN MASK IS BLOCKED.  MAINTENANCE REMOVED AND REPLACED THE CAPTAINS EMERGENCY OXYGEN MASK IAW T/C R1B35001, OPERATIONAL CHECK WAS GOOD.

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