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NTSB Report
August 28, 2006 · Robinson R22 BETA · N2649D
Frederick, MD
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
August 28, 2006
Injury Outcomes
No injuries (2 uninjured)
Location
Frederick, MD
Aircraft
Robinson R22 BETA
Tail Number
N2649D
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC06CA213
According to the flight instructor, he and his student, a certificated airplane pilot, were practicing hovering autorotations about 3 feet above the ground. The student pilot reduced engine power to initiate the maneuver, pushed forward on the cyclic, and the helicopter descended. The flight instructor stated that he assumed cyclic control, and then the helicopter impacted the ground "fairly hard and bounced." The student pilot subsequently pulled up on the collective, the left skid remained in contact with the ground, and the helicopter rolled over on its left side. The flight instructor stated that there were no mechanical or performance deficiencies with the helicopter.
NTSB Probable Cause
The flight instructor's delayed remedial action during a hovering autorotation, which resulted in a hard landing and inadvertent dynamic rollover.
Full Narrative
According to the flight instructor, he and his student, a certificated airplane pilot, were practicing hovering autorotations about 3 feet above the ground. The student pilot reduced engine power to initiate the maneuver, pushed forward on the cyclic, and the helicopter descended. The flight instructor stated that he assumed cyclic control, and then the helicopter impacted the ground "fairly hard and bounced." The student pilot subsequently pulled up on the collective, the left skid remained in contact with the ground, and the helicopter rolled over on its left side. The flight instructor stated that there were no mechanical or performance deficiencies with the helicopter.
Flight
Event TypeAccident
Event Time14:15 EDT
Nearest AirportFrederick Municipal Airport (0nm)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRobinson R22 BETA
Tail NumberN2649D
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2C · Reciprocating · 160
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 23 · Second Class · None
Crew 2Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind310° @ 6 kt
Visibility10 sm
CeilingBroken clouds 6000 ft
Temperature / Dew Point66 F
Altimeter29.92 inHg
Observation Time18:23
Weather SourceWFAC