# SDR UIEA2019112095931

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2019
- Submitted: November 20, 2019
- Operation: Air carrier
- Aircraft: [N419MC](https://openairdocs.org/aircraft/N419MC), registered now
- Make and model: Boeing 747-48EF
- Registry model: [Boeing 747-48EF](https://openairdocs.org/model/boeing-747-48ef) (OpenAirDocs)
- Aircraft serial: 28367
- Aircraft time: 97,394 hours, 17,043 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Regulator
- Condition: Damaged
- Location: Oxygen Mask
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019112095931

## Discrepancy

CAPTAIN'S O2 MASK REGULATOR DAMAGED, PADDLE LEVER BROKEN. O2 FREE FLOWS WHEN DONNED.  (<P>REMOVED AND REPLACED CAPTAIN'S O2 MASK ASSY IAW AMM 35-11-18 REV. 36. </P>)

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