MKC87FA083

NTSB accident investigation · Aeronca 11AC · Stillwell, KS · April 19, 1987

Accident · Serious injuriesField investigationFinal report
Date
April 19, 1987, 08:35 local (13:35 UTC)
Place
Stillwell, KS
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N85846Aeronca 11AC
Weather
Visual (VMC) · Day
Status
Completed · report May 16, 1989
Report
Approved by Office Director
FAA report
19870419081069A
Case key
34286

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 flightManeuvering
In-flight planning/decision - improperPilot in commandFactor
ComplacencyPilot in commandFactor
Wind information - disregardedPilot in commandFactor
Low pass - attemptedPilot in commandFactor
Weather condition - unfavorable windFactor
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot stated that this flight was to be a photographic, pleasure trip involving two aircraft. After several aerial photos were taken of each other's aircraft, both airplanes landed at the accident airport. The PIC and his passenger then took-off while the other aircraft stayed on the ground in order for its crew to photograph the airborne aircraft. According to the PIC, he made several low passes over the aerodrome when, suddenly, wind shear caused the aircraft to weathercock and stall from approx 40 ft AGL, precluding any stall recovery before impact. According to the national weather service, winds in the area at the time of the accident were from the southeast at 16 KTS, gusting to 25 KTS. Airport personnel reported that trees had been planted recently--by neighbors--in the immediate perimeter of the airstrip.

Aircraft

Registration
N85846
Reported as
Aeronca 11AC
Category
Airplane
Serial number
11AC-254
Airframe hours
2,128
Engine
Continental C-65-8, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Dan Minges
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · June 21, 1986 · 50 hours before
Departed
IXD · Olathe, KS
Airport
64K · Mission Road, runway 18, 2,065 × 100 ft, grass/turf

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
33
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,010 total · 215 in this make and model · 2,000 as pilot in command · 300 in the last 90 days · 5 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 16 knots, gusting 25
Visibility
15 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 50 °F
Altimeter
29.00 inHg
Observed at
OJC, 6 nm away

FAA reports on this event · 1

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