Primary finding
Probable cause
Proper descent rate not obtained/maintained during a pinnacle approach.
Investigator assessment
Analysis narrative
The pilot stated he was demonstrating a pinnacle approach and landing during a check ride. He stated the "Angle of approach was too great and too much collective was given which led to a rotor stall." The helicopter subsequently collided with terrain and rolled over resulting in substantial damage.
Source record
Factual narrative
The commercial pilot stated he was demonstrating a pinnacle approach and landing to a Designated Pilot Examiner during a Certified Flight Instructor (CFI) check ride. He stated the "Angle of approach was too great and too much collective was given which led to a rotor stall." The helicopter subsequently collided with terrain and rolled over resulting in substantial damage.