# SDR P5CA2023100400111

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2023
- Submitted: October 5, 2023
- Operation: Air carrier
- Aircraft: [N777SA](https://openairdocs.org/aircraft/N777SA), registered now
- Make and model: Boeing 777FZB
- Registry model: [Boeing 777FZB](https://openairdocs.org/model/boeing-777fzb) (OpenAirDocs)
- Aircraft serial: 37989
- Aircraft time: 57,528 hours, 6,451 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Stowage Box
- Part number: MXP4023
- Part serial: SE40432
- Condition: Unknown
- Location: Unknown
- 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/P5CA2023100400111

## Discrepancy

FO OXY MASK MIC HOWL BOTH SPEAKERS.(<P>REPLACED FO OXY MASK STOWAGE BOX AND TO OXY MASK MIKE CHECKED NORMAL PER AMM 35-11-18/401. </P>)

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