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NTSB Report
June 7, 2024 · Piper PA-18-150 · N40561
Garrett, WY
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 7, 2024
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
Garrett, WY
Aircraft
Piper PA-18-150 (1975)
Tail Number
N40561
Operator
United States Department of Agriculture
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
WPR24LA187
The pilot reported that during an animal damage control mission, while maneuvering at a low altitude over wildlife, the airplane encountered “rough, disturbed air,” which he counteracted by leveling the wings pushing the nose down slightly. As the airplane began to fly out of the disturbed air, it encountered disturbed air a second time, which the pilot leveled the wings and moved the [control] stick to neutral due to the close proximity of the ground and sink rate. Subsequently the airplane impacted the ground and came to rest inverted. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot’s failure to maintain clearance from terrain while conducting low-level altitude operations, following an encounter with wake turbulence.
Full Narrative
The pilot reported that during an animal damage control mission, while maneuvering at a low altitude over wildlife, the airplane encountered “rough, disturbed air,” which he counteracted by leveling the wings pushing the nose down slightly. As the airplane began to fly out of the disturbed air, it encountered disturbed air a second time, which the pilot leveled the wings and moved the [control] stick to neutral due to the close proximity of the ground and sink rate. Subsequently the airplane impacted the ground and came to rest inverted. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time05:55 MDT
Nearest Airport0nm
Flight Plan FiledCvfr
Flight Plan ActivatedYes
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-18-150
Tail NumberN40561
Aircraft CategoryAir
DamageSubstantial
OperatorUnited States Department of Agriculture
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-C4P · Reciprocating · 180
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 48 · Second Class · Minor
Crew 2None · None
Conditions
ConditionsVMC
LightDaylight
Wind2 kt
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO