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NTSB Report
September 21, 2012 · Piper PA-18-150 · N3802Z
Port Alsworth, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 21, 2012
Injury Outcomes
No injuries (2 uninjured)
Location
Port Alsworth, AK
Aircraft
Piper PA-18-150
Tail Number
N3802Z
Operator
Alsworth Anthony R
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC12CA110
The pilot was departing from a mountain ridgeline in gusting wind conditions. He said that he started the takeoff in what he estimated was a 5- to 10-knot headwind. At liftoff, a gust of wind raised the right wing, and the left wing struck the ground, which pivoted the airplane to the left. The airplane then continued over the ridgeline, traveled downhill, nosed over, and came to rest inverted. The airplane sustained substantial damage to both wings and the fuselage. There were no reported preaccident mechanical problems with the airplane that would have precluded normal operations.
NTSB Probable Cause
The pilot's loss of directional control during takeoff in gusting wind conditions from an off-airport site, which resulted in a collision with terrain and a nose over.
Full Narrative
The pilot was departing from a mountain ridgeline, in gusting wind conditions. He said he started the takeoff in what he estimated was a 5-10 knot headwind. At liftoff, a gust of wind raised the right wing and the left wing struck the ground, which pivoted the airplane to the left. The airplane then continued over the ridgeline, downhill, nosing over, and coming to rest inverted. The airplane sustained substantial damage to both wings and the fuselage. There were no reported mechanical problems with the airplane prior to the accident.
Flight
Event TypeAccident
Event Time09:30 AKDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-18-150
Tail NumberN3802Z
Aircraft CategoryAir
DamageSubstantial
OperatorAlsworth Anthony R
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 SERIES · Reciprocating · 150
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 35 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind90° @ 10 kt, gusting 20 kt
Visibility25 sm
CeilingBroken clouds 10000 ft
Temperature / Dew Point46 / 45 C
Altimeter29.73 inHg
Observation Time11:53