# SDR IPXA2019120329622

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2019
- Submitted: December 3, 2019
- Operation: Air carrier
- Aircraft: [N274UP](https://openairdocs.org/aircraft/N274UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48575
- Aircraft time: 71,128 hours, 13,867 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cockpit
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2019120329622

## Discrepancy

INSPECTION TYPE:N/AEXPERIENCED MILD DIRTY SOCK SMELL DESCENDING THRU 3500OPERATED AC PACKS INDIVIDUALLY AND TOGETHER AT HIGH AND LOW TEMP SETTINGS FOR AN EXTENDED PERIOD OF TIME IAW MM 21-53-00-840-801 EXPERIENCED NO ODORS

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