# SDR AALA20170525005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2017
- Submitted: May 31, 2017
- Operation: Air carrier
- Aircraft: [N773AN](https://openairdocs.org/aircraft/N773AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29583
- Aircraft time: 74,441 hours, 9,268 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 4100945A
- Part serial: 0772
- Condition: Failed
- Location: Recirculation
- Part time: 37,813 hours, 4,381 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20170525005

## Discrepancy

ELECTRICAL ODOR NOTED APPROXIMATELY 4 HOURS AFTER DEPARTURE.  ALL SWITCHES ON THE IN-FLIGHT ENTERTAINMENT PANEL SELECTED OFF AND THE ODOR DISSIPATED.  FOUND UPPER FORWARD RECIRCIRCULATION FAN FAILED. REMOVED AND REPLACED FAN IAW AMM 21-25-01.  OPERATIONAL CHECK GOOD.

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