# SDR UIEA2025061100739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 2025
- Submitted: June 13, 2025
- Operation: Air carrier
- Aircraft: [N703GT](https://openairdocs.org/aircraft/N703GT), registered now
- Make and model: Boeing 777F16
- Registry model: [Boeing 777F16](https://openairdocs.org/model/boeing-777f16) (OpenAirDocs)
- Aircraft serial: 41518
- Aircraft time: 59,742 hours, 8,305 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Switch
- Condition: Broken
- Location: Zone 200
- 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/UIEA2025061100739

## Discrepancy

FIRST OBSERVER O2 MASK SWITCH BROKEN 2511.(<P>R/R 1ST OBS O2 BOX ASSY IAW AMM 35-11-18. OPS CHECK & LEAK CHECK GOOD. NO FURTHER DEFECTS NOTED. THIS CLEARS DMI 232321. PLACARDS REMOVED.</P>)

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