Aviation Accident Summaries

Aviation Accident Summary CEN22LA147

Texarkana, AR, USA

Aircraft #1

N761AF

SIKORSKY AIRCRAFT CORP S-76D

Analysis

The pilot reported that he was on approach to a hospital rooftop helipad that he had never landed at before. About 30 ft above ground level, he felt a “thump” in the pedals; the helicopter vibrated, pitched forward, rolled left, then yawed right. The pilot landed the helicopter on the helipad. After the accident the pilot discovered that the tail rotor had contacted the building. The helicopter sustained substantial damage to the tail rotor, tail rotor drivetrain, and tail pylon. The pilot reported that there were no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.

Probable Cause and Findings

The pilot’s failure to maintain adequate clearance during landing on a rooftop helipad.

 

Source: NTSB Aviation Accident Database

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