Pilot Debrief

AGUSTAWESTLAND SPA AW109SP near Kamas, UT — 2024-10-08

Final reportWPR25LA006
Sign in to save
Date
2024-10-08
Location
Kamas, UT, USA
Aircraft
AGUSTAWESTLAND SPA AW109SP
Registration
N631HC
Category
Helicopter
Highest injury
Minor
Fatalities
0

Probable cause

The pilot’s exceedance of the helicopter’s available power while landing in a confined area, which resulted in a loss of tail rotor effectiveness and a hard landing.

NTSB narrative

The pilot of the helicopter reported that he mistakenly added more fuel than was required to complete a mountainous terrain, confined area landing at an elevation of 10,276 ft msl. During his approach to the landing area, the helicopter descended below the tree line preventing a go-around. As the helicopter descended, the pilot increased collective to add power, but he observed a high torque indication of 111% and he felt the “sluggish” performance of the helicopter. The tail rotor effectiveness diminished, an uncommanded right yaw ensued, and the helicopter landed hard, which resulted in substantial damage to the lower fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the powered glider that would have precluded normal operation.

NTSB coding

Evidence available

  • Photos
  • 3 docket documents
View NTSB final reportView NTSB docket

Docket documents3

Related mishaps