Primary finding
Probable cause
The pilot's failure to maintain clearance from terrain while hover taxiing backward, resulting in the tail striking terrain.
Investigator assessment
Analysis narrative
The pilot reported that as the helicopter was in a hover and backed off of the landing pad, the vertical stabilizer impacted rising terrain. The pilot further reported that he was able to land back on the landing pad 30 feet away with no further incident. A post examination of the helicopter revealed that the rear vertical stabilizer had received substantial damage. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
Source record
Factual narrative
The pilot reported that as the helicopter was in a hover and backed off of the landing pad, the vertical stabilizer impacted rising terrain. The pilot further reported that he was able to land back on the landing pad 30 feet away with no further incident. A post examination of the helicopter revealed that the rear vertical stabilizer had received substantial damage. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.