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NTSB Report
June 9, 2019 · Robinson R44 II · N724H
Lebanon, MO
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
June 9, 2019
Injury Outcomes
No injuries (4 uninjured)
Location
Lebanon, MO
Aircraft
Robinson R44 II (2019)
Tail Number
N724H
Operator
Hendricks Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA19CA476
The pilot reported that, during a vertical descent into a privately owned field and while the helicopter was about 20 ft about ground level, the helicopter yawed right. He then lowered the collective, and the helicopter continued to yaw right, descended, and landed hard. The helicopter sustained substantial damage to the cabin assembly. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation. The pilot added that he mistook the right yaw for a loss of tail rotor effectiveness and should have applied pedal corrections.
NTSB Probable Cause
The pilot's loss of yaw control and failure to maintain a proper descent rate and his subsequent improper use of the collective instead of the antitorque pedals to correct the yaw, which resulted in a hard landing.
Full Narrative
The helicopter pilot reported that, during a vertical decent into a privately-owned field surrounded by trees and two buildings, about 20 feet about the ground, the helicopter yawed to the right. He then lowered the collective and the helicopter continued to yaw to the right, descended and landed hard on the field. The helicopter manufacturer reported that the helicopter sustained substantial damage to the cabin assembly. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation. The pilot added that he mistook the right yaw for the loss of tail rotor effectiveness and should have instead applied pedal corrections.
Flight
Event TypeAccident
Event Time13:30 CDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRobinson R44 II
Tail NumberN724H
Aircraft CategoryHeli
DamageSubstantial
OperatorHendricks Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-AE1A5 · Reciprocating
Seats4
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 38 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind10° @ 8 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point66 F
Altimeter30.02 inHg
Observation Time17:55
Weather SourceWFAC