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NTSB Report
August 20, 2018 · Piper PA18 150 · N6727A
Mcgrath, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
August 20, 2018
Injury Outcomes
No injuries (2 uninjured)
Location
Mcgrath, AK
Aircraft
Piper PA18 150 (1981)
Tail Number
N6727A
Operator
Alaska Dall Sheep Guides
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA18CA504
The pilot of the tailwheel-equipped airplane reported that, during takeoff from a gravel, dirt airstrip, a "rogue crosswind gust of wind" pushed the airplane to the right. The airplane struck a "bump," became airborne, continued drifting right, and landed hard in a creek. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot reported that the prevailing wind was light and variable and not gusting. The airplane was departing to the south.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
Full Narrative
The pilot of the tailwheel-equipped airplane reported that, during takeoff on a gravel, dirt airstrip, a "rogue crosswind gust of wind" pushed the airplane to the right. The airplane struck a "bump", became airborne, continued drifting right, and landed hard in a creek. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot reported that the prevailing wind was light and variable and not gusting. The airplane was departing to the south.
Flight
Event TypeAccident
Event Time08:30 AKDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA18 150
Tail NumberN6727A
Aircraft CategoryAir
DamageSubstantial
OperatorAlaska Dall Sheep Guides
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-A2B · Reciprocating · 160
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 72 · First Class · None
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 3 kt
Visibility10 sm
CeilingOvercast 10000 ft
Temperature / Dew Point54 / 52
Altimeter30.03 inHg
Observation Time17:01
Weather SourceWFAC