Probable cause
A loss of directional control for reasons that could not be determined based on the available information.
NTSB analysis
The pilot reported that, during the landing roll while applying the brakes, the right brake “went flat.” The airplane veered to the left, impacted a stump, and nosed over, resulting in substantial damage to the fuselage and left wing.
A postaccident examination revealed no mechanical anomalies with the brake system that would have precluded normal operation. Based on the available information, the reason for the loss of control during landing could not be determined.
Text from the NTSB. Open the NTSB docket for ANC21LA086 for the full record.
Event
- Date
- Sep 12, 2021
- Type
- Accident
- Place
- Port Alsworth, Alaska
- Nearest airport
- Pvt (PVT)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Stinson 108-3
- N-number
- N6476M
- Category
- Airplane
- Year built
- 1948
- 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.