- Date
- January 25, 1992, 13:00 local (19:00 UTC)
- Place
- Minneapolis, MN
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N4046HRobinson R-22B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 31, 1993
- Report
- Approved by Office Director
- FAA report
- 19920125050269A
- Case key
- 15387
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
A misjudged autorotation.
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.
Analysis
The pilot was practicing run on landings and simulated forced landings with an autorotation and a power recovery. During one such approach he said he misjudged his altitude and flight path, and struck a snow bank with the tail rotor, causing substantial damage.
Aircraft
- Registration
- N4046H
- Reported as
- Robinson R-22B
- Category
- Helicopter
- Serial number
- 1651
- Engine
- Lycoming O-320-B2C, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Wilkes, Clyde H.
- Registered owner
- K. Alderman/M. Pinsky
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · November 27, 1991 · 796 hours before
- Airport
- ANE · Anoka County
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 57
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine land, Single-engine sea
- Instrument ratings
- Helicopter, Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Right
- Flight hours
- 2,439 total · 230 in this make and model · 2,238 as pilot in command
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 360° at 8 knots
- Visibility
- 10 statute miles
- Temperature
- 25 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N4046H · 1
Matched to the same aircraft by N-number and date.