# SDR P5CA2016081800226

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 16, 2016
- Submitted: August 19, 2016
- Operation: Air carrier
- Aircraft: [N498MC](https://openairdocs.org/aircraft/N498MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29259
- Aircraft time: 71,791 hours, 10,979 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Regulator
- Part number: 160520
- Part serial: 9277
- Condition: Failed
- Location: Crew Oxygen
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA2016081800226

## Discrepancy

FOUND CREW OXYGEN REGULATOR FAILED.   REMOVED AND REPLACED THE REGULATOR IAW AMM 35-41-07-004-001 REV 87 & AMM 35-00-00-702-079 REV 87.

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