# SDR UIEA2020031300438

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2020
- Submitted: March 13, 2020
- Operation: Air carrier
- Aircraft: [N1381A](https://openairdocs.org/aircraft/N1381A), registered now
- Make and model: Boeing 767316
- Aircraft serial: 27615
- Aircraft time: 88,157 hours, 19,108 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MC1008109
- Part serial: SE78755
- Condition: Defective
- Location: Cockpit
- Stage of operation: NR
- 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/UIEA2020031300438

## Discrepancy

FO O2 MASK VALVE SHUTTERS WHEN BREATHING IN.(<P>REMOVED AND REPLACED FO'S OXYGEN MASK IAW AMM 35-11-51. OPS CHECK GOOD AT THIS TIME. NO DEFECTS NOTED.</P>)

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