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NTSB Report
March 13, 2007 · Robinson R22 BETA · N7681H
Broomfield, CO
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 13, 2007
Injury Outcomes
No injuries (2 uninjured)
Location
Broomfield, CO
Aircraft
Robinson R22 BETA
Tail Number
N7681H
Operator
Premier Helicopters
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN07CA072
According to the flight instructor, he was demonstrating a "full-down" autorotation into a 20-knot headwind. About 20 feet above the ground, the wind diminished and the rotor RPM decayed. The pilot flared the helicopter, but it impacted the taxiway at 40 knots and at a 1,000 feet per minute descent rate. The helicopter bounced and the main rotor blades struck the tail boom. A systems examination revealed no anomalies.
NTSB Probable Cause
The instructor's failure to maintain aircraft control. A contributing factor was the windshear.
Full Narrative
According to the flight instructor, he was demonstrating a "full-down" autorotation into a 20-knot headwind. About 20 feet above the ground, the wind diminished and the rotor RPM decayed. The pilot flared the helicopter, but it impacted the taxiway at 40 knots and at a 1,000 feet per minute descent rate. The helicopter bounced and the main rotor blades struck the tail boom. A systems examination revealed no anomalies.
Flight
Event TypeAccident
Event Time17:15 MDT
Nearest AirportJEFFCO (0nm)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRobinson R22 BETA
Tail NumberN7681H
Aircraft CategoryHeli
DamageSubstantial
OperatorPremier Helicopters
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360 · Reciprocating
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 22 · Third Class · None
Crew 2Age 26 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 13 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point46 / 28 C
Altimeter30.02 inHg
Observation Time22:53
Weather SourceWFAC