# SDR IPXA2019091246665

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2019
- Submitted: September 13, 2019
- Operation: Air carrier
- Aircraft: [N275UP](https://openairdocs.org/aircraft/N275UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48774
- Aircraft time: 56,496 hours, 13,664 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: Contaminated
- Location: Ac Bay
- Stage of operation: CR
- 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/IPXA2019091246665

## Discrepancy

INSPECTION TYPE:N/A AIRPLANE HAS FAIRLY STRONG OILY SMELL ENTIRE FLIGHT SEEMS TO BE COMING FROM AIR CONDITIONING SYSTEM BECAME STRONGER ON DESCENT UNACCEPTABLE LEVEL. BURNOUT/CLEARED A/C PACKS AND DISTRIBUTION DUCTS FOR ODOR AS PER MM 21-53-00-16-802 AND REPLACED COALESSER BAG AS PER MM 21-54-05-400-861 OPS CK GOOD OK TO CONT SERV SEE LP 992574 ITEM 3.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.