The Lemon Index

Planes · Robinson R66

Robinson R66. Advanced data.

The raw numbers behind the page, in one place.

Accidents31NTSB
Fatal1135% of accidents
Deaths27NTSB
Destroyed26%of aircraft
Mechanical18%of accidents

Accidents by year

YearAccidents
20080
20090
20100
20111
20120
20131
20142
20150
20163
20171
20181
20193
20202
202110
20221
20230
20240
20256

What happened

What happenedShare of accidents
Low altitude operation/event19%
Unknown or undetermined10%
Loss of control in flight10%
VFR encounter with IMC6%
Miscellaneous/other6%
Abrupt maneuver6%

Phase of flight

Phase of flightShare of accidents
Maneuvering32%
Enroute29%
Landing16%
Takeoff6%
Other6%

Mechanical causes

PartShare
main rotor system2%

Updated