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NTSB Report
September 6, 2021 · Piper PA-12 · N149AK
Tyonek, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 6, 2021
Injury Outcomes
No injuries (2 uninjured)
Location
Tyonek, AK
Aircraft
Piper PA-12 (1946)
Tail Number
N149AK
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC21LA085
The pilot reported that he was landing off-airport, uphill, with a quartering tailwind. After touchdown, as the airplane began to slow, he began to have a loss of directional control. He attempted a go-around but had insufficient airspeed to attain an altitude to clear the approaching terrain. Subsequently, the airplane impacted the soft gravel terrain, the right main landing gear collapsed, and the airplane came to rest upright. A postaccident examination revealed substantial damage sustained to the right-wing spar. The pilot reported no preimpact mechanical failures or malfunctions with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot’s selection of inappropriate terrain and decision to land with a tailwind, which resulted in a loss of directional control, an attempted go-around, and subsequent impact with terrain.
Full Narrative
The pilot reported that he was landing off-airport, uphill, with a quartering tailwind. After touchdown, as the airplane began to slow, he began to have a loss of directional control. He attempted a go-around but had insufficient airspeed to attain an altitude to clear the approaching terrain. Subsequently, the airplane impacted the soft gravel terrain, the right main landing gear collapsed, and the airplane came to rest upright. A postaccident examination revealed substantial damage sustained to the right-wing spar. The pilot reported no preimpact mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time13:30 AKDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-12
Tail NumberN149AK
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A4A · Reciprocating · 180
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 48 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind240° @ 6 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point57 F / 46 F
Altimeter29.90 inHg
Observation Time12:53
Weather SourceWFAC