Helicopter tail boom damaged after precautionary landing in muddy cornfield (N296Q)

What happened

The pilot initiated a precautionary landing in a cornfield as weather conditions worsened during flight. After the aircraft touched down, the front section of the skids began to sink into the soft, muddy ground.

In an attempt to prevent further subsidence, the pilot applied rearward pressure on the cyclic control stick. This maneuver caused the main rotor blades to strike the tail boom, resulting in structural damage that severed the component.

The investigation

Examination of the aircraft revealed that the main rotor blades had impacted and separated the tail boom following the ground contact. The initial cause of the landing was attributed to deteriorating weather conditions requiring a precautionary stop.

Findings

• deteriorating weather prompted the precautionary landing in an unprepared field.
• The pilot's attempt to control sinkage by pulling rearward on the cyclic led to rotor-blade contact with the tail boom.
• severed tail boom was the direct result of the rotor strike during the post-landing recovery effort.