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NTSB Report
September 9, 2005 · Robinson R44 II · N944U
Jackson, WY
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 9, 2005
Injury Outcomes
No injuries (3 uninjured)
Location
Jackson, WY
Aircraft
Robinson R44 II
Tail Number
N944U
Operator
Upper Limit Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN05CA138
Shortly after departure, the pilot noticed the rotor RPM had begun to diminish, and the helicopter settled towards terrain. The pilot attempted to apply additional throttle; however, the throttle was already in the full open position. The pilot then lowered the collective and reduced the throttle. The helicopter continued to settle toward terrain, and the pilot applied full throttle. The helicopter contacted the ground, rotated 180 degrees, and came to rest upright.
NTSB Probable Cause
the pilot's failure to maintain aircraft control during initial takeoff climb resulting in an uncontrolled descent and impact with terrain. A contributing factor was the pilot's encounter in settling with power.
Full Narrative
This report is based on information received by the NTSB. Additional details may be found in the NTSB's public docket for this case. For further information, please contact the NTSB Office of Public Inquiries.
Flight
Event TypeAccident
Event Time11:25 MDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft
AircraftRobinson R44 II
Tail NumberN944U
Aircraft CategoryHeli
DamageSubstantial
OperatorUpper Limit Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540 · Reciprocating
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 23 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0