Friday, April 7, 2017

Bell 206B, N206SA, Havasu Heli Flights LLC: Accident occurred April 06, 2017 in La Verne, Los Angeles County, California (and) Incident occurred November 12, 2016 near Camp Pendleton, California

Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

NTSB Identification: GAA17CA218
14 CFR Part 91: General Aviation
Accident occurred Thursday, April 06, 2017 in La Verne, CA
Probable Cause Approval Date: 10/31/2017
Aircraft: BELL 206, registration: N206SA
Injuries: 2 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The flight instructor in the helicopter reported that he was providing hovering autorotation training to a private pilot. The flight instructor reported that he rolled off the throttle to initiate the maneuver, and the private pilot “raised the collective too soon which resulted in the aircraft climbing.” The rotor inertia decayed, and a main rotor blade struck the tailboom after the helicopter struck the ground. The helicopter sustained substantial damage to the tail rotor drive shaft.  

The pilot reported that there were no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation. 

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The pilot’s early increased application of the collective during a simulated hovering autorotation, which resulted in a loss of rotor rpm and subsequent main rotor blade strike of the tailboom. 

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Los Angeles, California

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

Registered Owner: Havasu Heli Flights LLC

Operator: Havasu Heli Flights LLC

Coastal Helicopters LLC
c/o Paracorp Inc

http://registry.faa.gov/N206SA

NTSB Identification: GAA17CA218
14 CFR Part 91: General Aviation
Accident occurred Thursday, April 06, 2017 in La Verne, CA
Aircraft: BELL 206, registration: N206SA
Injuries: 2 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The flight instructor in the helicopter reported that he was providing hovering autorotation training to a private pilot. The flight instructor reported that he rolled off the throttle to initiate the maneuver and the private pilot, "raised the collective too soon which resulted in the aircraft climbing." The rotor inertia decayed and a main rotor blade struck the tailboom after the helicopter struck the ground. The helicopter sustained substantial damage to the tail rotor drive shaft.

The pilot reported that there were no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.

Federal Aviation Administration / Flight Standards District Office; San Diego

N206SA Bell 206 rotorcraft during aerial operation, struck wire.  Landed without incident.  Near Camp Pendleton, California

Date: 12-NOV-16
Time: 23:30:00Z
Regis#: N206SA
Aircraft Make: BELL
Aircraft Model: 206
Event Type: Incident
Highest Injury: None
Damage: Minor
Activity: Other
Flight Phase: UNKNOWN (UNK)
City: CAMP PENDLETON
State: California

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