# SDR 2026FA0000617

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 31, 2026
- Submitted: August 4, 2026
- Operation: General aviation
- Aircraft: [N407BU](https://openairdocs.org/aircraft/N407BU), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 54444
- Aircraft time: 2,997 hours, 6,003 cycles
- Engine: Allsn 250C47B
- Engine time: 5,959 hours, 11,563 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Blower Motor
- Part number: ES611421
- Condition: Burned Out
- Location: Zone 200
- Stage of operation: CR
- 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/2026FA0000617

## Discrepancy

CREW SMELLED A BURNING OR SMOKY SMELL COMING FROM AC VENTS. TURNED OFF AC AND BLOWER MOTOR, PULLED CIRCUIT BREAKER FOR AC, OPENED VENTS AND WINDOWS. AIRCRAFT LANDED WITH NO OTHER FAULTS.

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