Indianapolis - West Lafayette

On January 13, 1987 at 01:54 PM, Indianapolis - West Lafayette experienced a crash involving NAMC YS-11, operated by Mid Pacific Air, with the event recorded near Remington Indiana.

The flight was categorized as training and the reported phase was flight at a plain, valley crash site.

3 people were known to be on board, 0 fatalities were recorded, 3 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.

Crew on board: 3, crew fatalities: 0, passengers on board: 0, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is human factor. The flight crew failed to adhere to appropriate procedures and directives when they failed to select the hp cock levers to the hswl (lock out) position while performing an approach to landing stall during a training/test flight. When stall recovery was initiated, both propellers 'hung up' when the high (cruise pitch) stops of each propeller failed to withdraw. As the power levers were advanced, turbine gas temperatures (tgt's) exceeded limitations; the left propeller auto-feathered, the right propeller was later feathered by the captain. Restart procedures were attempted without success, and a forced landing in a plowed cornfield ensued. Examination of the engines revealed that the turbines had been 'subjected to severe (and destructive) thermal degradation during operation' as a result of the propellers being constrained during low speed operations. Testing of the relays revealed that the high stop withdrawal relay for the right propeller functioned intermittently. All three crew members escaped uninjured.

Aircraft reference details include registration N906TC, MSN 2154, year of manufacture 1970.

Geospatial coordinates for this crash are approximately 40.7609°, -87.1509°.