Incident Overview
The pilot of a helicopter reported that the landing pad gave out during a landing. According to the pilot, the approach and landing to the pad were normal. After touchdown, the pilot began reducing power. The helicopter remained stable for approximately three seconds, after which part of the landing pad collapsed.
Sequence of Events
The pilot described the landing pad as elevated, with a clay foundation and a shell top. The pilot indicated that recent rain may have compromised the pad's stability. As the pad gave way, the helicopter rocked backward, causing the tail skid to strike the ground. The helicopter began rotating to the left. The pilot overcorrected to the right, resulting in the helicopter colliding with trees.
Pilot and Aircraft Condition
The pilot sustained minor injuries. The helicopter incurred substantial damage to the fuselage and the tail boom. The pilot confirmed that there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
Investigation Notes
Despite multiple requests, the pilot did not submit the National Transportation Safety Board Form 6120.1 Pilot/Operator Aircraft Accident/Incident Report as requested.