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NTSB Report
May 27, 2011 · Bell 206B3 · N59383
Glendale, AZ
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
May 27, 2011
Injury Outcomes
No injuries (2 uninjured)
Location
Glendale, AZ
Aircraft
Bell 206B3
Tail Number
N59383
Operator
N57Aw
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR11CA243
The certified flight instructor reported that the purpose of the flight was to demonstrate a variety of maneuvers to the student in the helicopter. Near the end of the flight the instructor demonstrated a power-on autorotation; however, he delayed the application of power and did not have sufficient rotor RPM to recover the helicopter before impacting the ground. Upon ground impact, the helicopter's tail rotor drive shaft and main rotor blades were damaged. The pilot reported no preimpact mechanical malfunctions of failures with the airframe or the engine that would have precluded normal operation.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Prop/rotor parameters-Not attained/maintained - C
Full Narrative
The certified flight instructor reported that he took off in the helicopter to show a student pilot a demonstration of various maneuvers. Near the end of the flight the instructor demonstrated a power on autorotation but he was late rolling on the throttle and did not have sufficient rotor RPM to recover the helicopter before impacting the ground. Upon ground impact the helicopter's tail rotor drive shaft and main rotor blades were damaged. The pilot reported no pre-impact mechanical malfunctions of failures with the airframe or the engine that would have precluded normal operation.
Flight
Event TypeAccident
Event Time08:30 MST
Nearest AirportGlendale Municipal Airport (0nm)
Flight Plan FiledUnknown
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 206B3
Tail NumberN59383
Aircraft CategoryHeli
DamageSubstantial
OperatorN57Aw
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsRolls Royce · 250C20 · Turboshaft · 400
Seats5
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 27 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind4 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point32 C
Altimeter29.86 inHg
Observation Time14:45