Probable cause
The pilot’s failure to maintain directional control during landing.
NTSB analysis
The pilot of the float-equipped airplane reported that, during landing, the touchdown on the water was smooth. While the airplane was on step, she reduced the flaps, and the airplane suddenly veered left. She applied right rudder and reduced engine power. The left float hit the concrete shore bank, the airplane spun to the left, and the right wing struck the shore.
The airplane sustained substantial damage to the fuselage and both wings.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Text from the NTSB. Open the NTSB docket for GAA18CA370 for the full record.
Event
- Date
- Jun 21, 2018
- Type
- Accident
- Place
- Anchorage, Alaska
- Nearest airport
- Lake Hood (LHD)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Cessna 170
- N-number
- N4427B
- Category
- Airplane
- Year built
- 1955
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
Other records under this N-number
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.