Probable cause
The pilot’s failure to maintain directional control during landing in gusting wind conditions.
NTSB analysis
The pilot in the tailwheel-equipped airplane reported that, before landing on the narrow, gravel airstrip, the airplane encountered a wind gust from the right that "pushed me to the left a few feet." The airplane's left wing contacted brush on the left side of the airstrip, and the airplane then exited the left side of the airstrip. The airplane descended into a 2-ft-deep ditch and stopped.
The airplane sustained substantial damage to the left wing spar.
The pilot reported that the wind conditions were variable and gusting to 8 knots, that the skies were clear, and that the visibility exceeded 10 miles.
The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Text from the NTSB. Open the NTSB docket for GAA18CA520 for the full record.
Event
- Date
- Aug 15, 2018
- Type
- Accident
- Place
- Tyonek, Alaska
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Piper PA18
- N-number
- N4165Z
- Category
- Airplane
- Year built
- 1965
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.