CHI86LA189

NTSB accident investigation · Robinson R22A · Eden Prairie, MN · August 7, 1986

Accident · No injuriesLimited investigationFinal report
Date
August 7, 1986, 18:10 local (23:10 UTC)
Place
Eden Prairie, MN
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N8556MRobinson R22A
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860807037889A
Case key
13500

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightHover
Rotorcraft flight control,cyclic control - jammed
Control interference - inadvertentPilot in commandCause
Directional control - not possiblePilot in commandCause
In flight collision with terrain/waterHover

Analysis

The CFI reported that upon liftoff, the aircraft began drift left. When he tried to correct this condition he found that he could not move the cyclic to the right. While drifting to the left, the left rear skid hit the ground, the aircraft tilted back and the tailrotor struck the ground. The CFI later reported that the cyclic could not be moved to the right because the student pilots leg was caught between the cyclic and the vent door. When the student tried to pull his leg back out of the way, he also pulled the cyclic back.

Aircraft

Registration
N8556M
Reported as
Robinson R22A
Category
Helicopter
Serial number
0451
Airframe hours
738
Engine
Lycoming O-320, 124 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Hervert Aviation
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · July 3, 1986
Airport
FCM · Flying Cloud Airport

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
22
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
839 total · 558 in this make and model · 712 as pilot in command · 251 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 10 knots
Visibility
15 statute miles
Lowest ceiling
25,000 ft broken
Temperature
-0 °F, dew point -0 °F
Altimeter
29.00 inHg
Observed at
FCM

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.