NTSB Identification: DFW08FA218
14 CFR Part 91: General Aviation
Accident occurred Friday, August 29, 2008 in Ridgedale, MO
Probable Cause Approval Date: 08/12/2010
Aircraft: ROBINSON R44 II, registration: N41411
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

The helicopter was on a new aircraft delivery flight from California to the delivery destination in Illinois. The helicopter was being flown by two pilots and was en route to an intermediate stop to drop off the second pilot. Several witnesses were watching the helicopter in normal cruise flight approximately 700 to 1,000 feet above ground level when it suddenly nosed straight down in a 60-degree dive and impacted trees and terrain. The helicopter was destroyed by impact forces and the postimpact fire. The flight instructor had completed the Robinson safety course including an evaluation flight in a Robinson 44 helicopter. The second pilot had completed the Robinson safety course including an evaluation flight in a Robinson 22 helicopter. At the time of the accident the helicopter had accumulated an estimated 17 hours of total time. An on-scene examination of the helicopter and engine showed no pre-crash anomalies that would have precluded normal operation.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

An in-flight loss of control for undetermined reasons.

Full narrative available

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