Bombardier Inc CL-600-2C10 N502AE accident near Peoria, Illinois

Probable cause

The emergency ground egress during which a passenger broke her ankle. Contributing to the accident was the failure of the environmental system, which allowed smoke from a nearby house fire to enter the airplane.

NTSB analysis

While on approach to the airport, the flight crew smelled smoke in the airplane. The airplane landed without incident and the crew directed an emergency ground egress. During the ground egress, one passenger broke her ankle. A postflight review of the airplane found that the airplane was operating on a single environmental pack that failed during the final approach, resulting in ambient air entering the airplane via the ram air inlet. An assessment of the airplane did not find any on-board sources of smoke. However, smoke from a large house fire was present along the airplane's approach path and likely was the source of smoke detected by the crew.

Text from the NTSB. Open the NTSB docket for CEN12LA457 for the full record.