LOSS of Throttle Control and HARD Landing at Oshkosh
12,240
Published 2024-06-30
The airline transport pilot maneuvered the helicopter on the downwind leg of the airport traffic pattern and attempted to reduce power for landing; however, the engine power remained excessively high. The pilot attempted to further reduce the engine power by turning off one magneto and applying carburetor heat, but the power remained too high to safely descend. The pilot then entered a sideslip, which allowed the helicopter to descend to about 100 ft above the runway. He turned the engine power off and autorotated to the ground. The helicopter landed hard in a tail-low attitude. The main rotor struck the tail and the tail rotor assembly separated from the helicopter.
• LOSS of Throttle Control and HARD Lan...
A postaccident examination found that the throttle linkage nut had loosened and separated from its fitting, causing the throttle to remain open. The helicopter's maintenance manual did not specify a torque value for the throttle linkage nut, and there were no maintenance procedures requiring the nut to be loosened or removed during overhaul. The pilot indicated that a complete overhaul of the helicopter was completed about 37 hours before the accident flight.
Probable Cause: The loosening and separation of the throttle linkage nut, which resulted in a loss of throttle control and subsequent hard landing after autorotation.
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All Comments (10)
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You'd think the T6's were having the emergency by all the chatter.
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Air shows at Oshkosh are like a Bravo airspace on steroids 💥💥
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glad the sky blender got down safely.
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what a cluster
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Scary AF....good Comms, well handled all round.
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No wonder air shows have a lot of accidents. They dont even know of a truck blocking cleared airplane. And that doesnt even fly. Hardly any control there.
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Terribly poor and unsafe communication.
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Controllers....
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Throttle? Bell 47? If you can't softly auto a Bell of any kind you should quit flying... Don't need a stinking throttle
