# SDR IPXA2017081820676

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2017
- Submitted: August 21, 2017
- Operation: Air carrier
- Aircraft: [N256UP](https://openairdocs.org/aircraft/N256UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48405
- Aircraft time: 82,565 hours, 17,029 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Warning System
- Part number: SC628ANP
- Condition: Inoperative
- Location: Oxygen System
- 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/IPXA2017081820676

## Discrepancy

FOUND OXYGEN SYS AURAL WARNING UNSERVICEABLE. OXYGEN AURAL SYSTEM REPLACED IAW AMM 20-30-00, TESTED GOOD.

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