NONE · MCDONNELL DOUGLAS HELICOPTER 500N · 2009-10-16 · Los Alamitos, CA, USA
Event
NTSB number
WPR10TA025
Event ID
20091020X30424
Type
Accident
Date
2009-10-16
Location
Los Alamitos, CA, USA
Coordinates
33.79, -118.051391
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
2
Total aboard
2
Aircraft
Make
MCDONNELL DOUGLAS HELICOPTER
Model
500N
Registration
N521HB
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The flight instructor's delayed remedial action during the instructional autorotative landing, which resulted in a failure to maintain an adequate rotor rpm to avoid a hard landing.