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NTSB Report
August 11, 2018 · Helio H 295 No Series · N77TR
Great Falls, MT
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
August 11, 2018
Injury Outcomes
No injuries (2 uninjured)
Location
Great Falls, MT
Aircraft
Helio H 295 No Series (1965)
Tail Number
N77TR
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA18CA481
The pilot of the tailwheel-equipped airplane reported that, during takeoff, the right wing lifted "unexpectedly." He attempted to recover, but the left main landing gear sideloaded and collapsed. The left wing impacted the runway, and the airplane rotated to the left 180° and came to rest on the runway. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation station located on the airport reported that, about 7 minutes before the accident, the wind was from 320° at 14 knots. The airplane was departing from runway 21.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Lateral/bank control-Not attained/maintained - C
Full Narrative
The pilot of the tailwheel-equipped airplane reported that during takeoff, the right wing "came up quickly (lifted) and unexpectedly." He attempted to recover, but the left main landing gear sideloaded and collapsed. The left wing impacted the runway and the airplane rotated to the left 180° and came to rest on the runway. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation station located on the airport reported that, about 7 minutes before the accident, the wind was from 320° at 14 knots. The airplane was departing on runway 21.
Flight
Event TypeAccident
Event Time13:00 MDT
Nearest AirportGreat Falls Intl (1nm ENE)
Runway21
Runway Length10502 ft
Runway Width150 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHelio H 295 No Series
Tail NumberN77TR
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · GO-480-G1D6 · Reciprocating · 295
Seats6
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 42 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind320° @ 14 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point34 C
Altimeter29.94 inHg
Observation Time18:53
Weather SourceWFAC