# SDR 2021FA0000094

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2021
- Submitted: April 7, 2021
- Operation: General aviation
- Aircraft: [N117UP](https://openairdocs.org/aircraft/N117UP), registered now
- Make and model: Bolkms BK117A1
- Aircraft serial: 7508
- Aircraft time: 8,596 hours
- Engine: Tmeca ARRIEL1E2
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Motor
- Condition: Inoperative
- Location: Evap Blower
- Component: Evap Blower
- Component part number: ES730732
- 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/2021FA0000094

## Discrepancy

DURING FLIGHT, THE CREW SMELLED A BURNING SMELL IN THE CABIN. THE PILOT DEACTIVATED THE A/C SYSTEM AND PERFORMED AND UNSCHEDULED LANDING. UPON MAINTENANCE ARRIVAL, IT WAS FOUND THAT THE EVAPORATOR MOTOR WAS INOPERATIVE. THE SYSTEM WAS DEFERRED AND THE BLOWER WAS REPLACED UPON RECEIPT.

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