The Lemon IndexBell 206 / 407. Advanced data.
The raw numbers behind the page, in one place.
Accidents351NTSB
Fatal7521% of accidents
Deaths157NTSB
Destroyed15%of aircraft
Mechanical22%of accidents
Accidents by year
| Year | Accidents |
|---|---|
| 2008 | 21 |
| 2009 | 16 |
| 2010 | 19 |
| 2011 | 18 |
| 2012 | 26 |
| 2013 | 31 |
| 2014 | 20 |
| 2015 | 21 |
| 2016 | 17 |
| 2017 | 20 |
| 2018 | 10 |
| 2019 | 21 |
| 2020 | 12 |
| 2021 | 17 |
| 2022 | 27 |
| 2023 | 23 |
| 2024 | 17 |
| 2025 | 15 |
What happened
| What happened | Share of accidents |
|---|---|
| Low altitude operation/event | 12% |
| Loss of control in flight | 11% |
| Loss of engine power (total) | 8% |
| Controlled flight into terr/obj (CFIT) | 5% |
| Dynamic rollover | 5% |
| Loss of tail rotor effectiveness | 5% |
Phase of flight
| Phase of flight | Share of accidents |
|---|---|
| Maneuvering | 42% |
| Enroute | 18% |
| Landing | 12% |
| Takeoff | 9% |
| Other | 6% |
Mechanical causes
| Part | Share |
|---|---|
| engine (turbine/turboprop) | 17% |
| rotorcraft flight control | 6% |
| engine fuel and control | 6% |
| main rotor system | 4% |
Updated