What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
PIC had loaded 4 passengers on-board the helicopter. Engine was started and spooled up to 100 % RPM when the left aft landing gear strut collapsed. The helicopter was on a portable landing pad trailer. When left aft landing gear strut collapsed it caused the helicopter to settle backward causing the tail rotor blades to strike the ground. The part the cracked at the idler bolt hole; landing gear aft left strut p/n 369H60001-51 assembly. There was no evidence of corrosion on the damaged parts. Until metal examination is conducted the apparent damage is from material failure. The damgaed landing gear strut assembly has being sent to NTSB iic for a metal examination.
As the FAA filed it
PIC HAD LOADED 4 PASSENGERS ON-BOARD THE HELICOPTER. ENGINE WAS STARTED AND SPOOLED UP TO 100 % RPM WHEN THE LEFT AFT LANDING GEAR STRUT COLLAPSED. THE HELICOPTER WAS ON A PORTABLE LANDING PAD TRAILER. WHEN LEFT AFT LANDING GEAR STRUT COLLAPSED IT CAUSED THE HELICOPTER TO SETTLE BACKWARD CAUSING THE TAIL ROTOR BLADES TO STRIKE THE GROUND. THE PART THE CRACKED AT THE IDLER BOLT HOLE; LANDING GEAR AFT LEFT STRUT P/N 369H60001-51 ASSEMBLY. THERE WAS NO EVIDENCE OF CORROSION ON THE DAMAGED PARTS. UNTIL METAL EXAMINATION IS CONDUCTED THE APPARENT DAMAGE IS FROM MATERIAL FAILURE. THE DAMGAED LANDING GEAR STRUT ASSEMBLY HAS BEING SENT TO NTSB IIC FOR A METAL EXAMINATION.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.