Probable cause
The pilot’s failure to maintain directional control while landing on a narrow, unimproved airstrip in gusting wind conditions.
NTSB analysis
The pilot of the tailwheel-equipped airplane reported that, while landing on the narrow, unimproved airstrip in gusting wind conditions, the airplane drifted right of center, and he was unable to recover. Subsequently, the right wing impacted trees off the right side of the unimproved airstrip.
The airplane sustained substantial damage to the right wing and empennage.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
An automated weather observation system about 26 nautical miles from the accident site reported that, about the time of the accident, the wind was from 010° at 9 knots, gusting to 15 knots.
The pilot reported weather conditions as good other than gusting wind when entering and in the river valley.
Text from the NTSB. Open the NTSB docket for GAA17CA408 for the full record.
Event
- Date
- Jul 13, 2017
- Type
- Accident
- Place
- Denali, Alaska
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Piper PA 18
- N-number
- N8560C
- Category
- Airplane
- Year built
- 1953
- Damage
- Substantial
- Operating rule
- Part 135 (charter and commuter)
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.