What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) While performing a pinnacle approach procedure into an unimproved site, the right front portion of the helicopters skid collided with a large rock. This occurred while some forward flight was still in progress; subsequently causing a buckeling force, and major/substantial buckeling to the tailboom assembly.
As the FAA filed it
(-23) WHILE PERFORMING A PINNACLE APPROACH PROCEDURE INTO AN UNIMPROVED SITE, THE RIGHT FRONT PORTION OF THE HELICOPTERS SKID COLLIDED WITH A LARGE ROCK. THIS OCCURRED WHILE SOME FORWARD FLIGHT WAS STILL IN PROGRESS; SUBSEQUENTLY CAUSING A BUCKELING FORCE, AND MAJOR/SUBSTANTIAL BUCKELING TO THE TAILBOOM ASSEMBLY.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.
Other reports on N355NT · 1
Matched to the same aircraft by N-number and date.