DEN86FA146

NTSB accident investigation · Bauer'S Mitchell Wing U-2 · Cheyenne, WY · May 31, 1986

Accident · FatalField investigationFinal report
Date
May 31, 1986, 14:00 local (20:00 UTC)
Place
Cheyenne, WY
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N3967SBauer'S Mitchell Wing U-2
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
16824

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.

Abrupt maneuverManeuvering - turn to reverse direction
Aerobatics - performedPilot in commandCause
Loss of control - in flightManeuvering - turn to reverse direction
Airspeed - not maintainedPilot in commandCause
Diverted attentionPilot in commandFactor
Stall/spin - inadvertentPilot in commandCause
Inadequate training(emergency procedure(s))Pilot in commandFactor
Remedial action - performedPilot in commandFactor
Lack of total experience in type of aircraftPilot in commandFactor
Stall - inadvertentPilot in commandCause
PanicPilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - groundFactor
Weather condition - high density altitudeFactor

Analysis

This was an experimental amateur-built acft. Witnesses reported seeing the acft in a steep right bank when the eng lost power. The acft was then seen to stall and enter a right spin. Witnesses said the plt recovered but entered a second stall and dove straight into ground. No evidence of airframe, eng, prop, or flt control malfunction/failure was found. Eng was later functionally tested and ran normally. Plt had never been given instruction in stall/spin recovery. Plt had logged 7 hrs in acft and was making 5th flt when accident occurred. Density altitude was computed to be 8157 ft MSL.

Aircraft

Registration
N3967S
Reported as
Bauer'S Mitchell Wing U-2
Category
Airplane, amateur-built
Serial number
U-462
Airframe hours
7
Engine
Cuyuna 440, 30 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Edward Joseph Bauer
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · December 13, 1985 · 7 hours before
Departed
CYS · Cheyenne, WY
Airport
CYS · Cheyenne

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
63
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Toxicology
Performed
Flight hours
247 total · 7 in this make and model · 150 as pilot in command · 7 in the last 90 days · 6 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
10° at 9 knots
Visibility
40 statute miles
Lowest ceiling
5,000 ft broken
Temperature
72 °F, dew point 37 °F
Altimeter
30.00 inHg
Observed at
CYS, 3 nm away