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NTSB Report
September 22, 2014 · Schweizer 269C Undesignat · N1675U
Grand Forks, ND
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 22, 2014
Injury Outcomes
No injuries (2 uninjured)
Location
Grand Forks, ND
Aircraft
Schweizer 269C Undesignat (2005)
Tail Number
N1675U
Operator
University of North Dakota
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN14CA513
The pilot receiving instruction was performing a practice 180-degree autorotation. Just prior to touchdown, the flight instructor perceived an abrupt loss in altitude, followed by a hard landing and tail rotor strike, which substantially damaged the tail rotor. The flight instructor reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
NTSB Probable Cause
The flight instructor's inadequate supervision and delayed remedial action during a practice autorotation, which resulted in a tail rotor strike.
Full Narrative
The pilot receiving instruction was performing a practice 180-degree autorotation. Just prior to touchdown, the flight instructor perceived an abrupt loss in altitude, followed by a hard landing and tail rotor strike, which substantially damaged the tail rotor. The flight instructor reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
Flight
Event TypeAccident
Event Time15:05 CDT
Nearest AirportGrand Forks Intl (1nm SE)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer 269C Undesignat
Tail NumberN1675U
Aircraft CategoryHeli
DamageSubstantial
OperatorUniversity of North Dakota
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO 360 · Reciprocating · 190
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 33 · First Class · None
Crew 2Age 32 · First Class · Minor
Conditions
ConditionsVMC
LightDaylight
Wind220° @ 9 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point50
Altimeter30.12 inHg
Observation Time19:55
Weather SourcePILO