# SDR IPXA2018022226772

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2018
- Submitted: February 26, 2018
- Operation: Air carrier
- Aircraft: [N278UP](https://openairdocs.org/aircraft/N278UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48577
- Aircraft time: 68,682 hours, 12,348 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Failed
- Location: Exhaust
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2018022226772

## Discrepancy

AIR TURN BACK FOR A STRONG ELECTRICAL ODOR IN THE COCKPIT AFTER TAKEOFF.  ON LANDING AT APPX 80 KTS RX LVL 2 AVIONICS EXH FLO OFF. PERFORMED FIM 21-26-01-00, BLOCKS 1, 2, 5, AND 9. AVNX EXHAUST FAN FAILED. SMELL REMOVED FROM A/C.  R & R THE EXHAUST FAN IAW MM 21-26-02-201-2. OPS CHECKED GOOD.

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