Colorado Aviation Accidents & Incidents

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2310 Total Accidents 425 Fatal 816 Fatalities 1982-2026
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Broomfield, Colorado

July 23, 2011 · NTSB CEN11CA511 · ROBINSON HELICOPTER COMPANY R44 II (N915BW)
Minor/None
Note: This analysis may be based on NTSB preliminary reports, which represent an initial, incomplete investigation. Facts can change as the investigation progresses, and preliminary findings should not be assumed to be accurate or final. For older events, a final NTSB report may have been issued β€” always consult the NTSB Aviation Query for the authoritative record.

NTSB Narrative

According to the pilot, the takeoff was normal and as the helicopter accelerated forward, the right door of the helicopter came open. The pilot, who was seated in the right seat, reacted by attempting to secure the door and subsequently lost control of the helicopter. The helicopter impacted the ramp. During the impact, the left skid separated, the right skid was crushed up and bent out, and the firewall and tailrotor were bent. The pilot reported that there were no mechanical failures or malfunctions prior to the accident. He did state that he had checked the security of the door with elbow pressure prior to departure but postulated that the securing pin was not fully engaged. A loss of control due to the pilot's diverted attention as a result of an open door.

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NTSB Findings

  • Personnel issues-Psychological-Attention/monitoring-Attention-Pilot - C
  • Aircraft-Aircraft structures-Doors-(general)-Related operating info
  • Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C

Details

NTSB ReportCEN11CA511
AircraftROBINSON HELICOPTER COMPANY R44 II
RegistrationN915BW
DamageSUBS
FAR Part091
Location39.9147, -105.1175
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