Probable cause
A partial loss of engine power during initial climb due to a cracked cylinder.
NTSB analysis
The pilot reported after a normal takeoff in a float-equipped airplane, about treetop height, there was a loud bang and pulsing sensation, and the engine lost partial power. Unable to maintain altitude and return to the airport, the pilot performed a forced landing to the mud flats. The airplane sustained substantial damage to the elevator and horizontal stabilizer. Postaccident examination revealed the No. 9 cylinder was cracked. The last maintenance performed was about 90 hours before the accident, there were no anomalies noted at that time.
Text from the NTSB. Open the NTSB docket for ANC24LA057 for the full record.
Event
- Date
- Jun 28, 2024
- Type
- Accident
- Place
- Juneau, Alaska
- Nearest airport
- Juneau Intl (JNU)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
DHC-2
- N-number
- N590DB
- Category
- Airplane
- Year built
- 1959
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Business
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.