Decatur Airport
Aircraft Accident/Incident Report

Decatur, Illinois 62521
Sunday, September 1, 1991 16:37 CDT

NTSB Narrative Summary Released at Completion of Accident

THE ACCIDENT AIRPLANE COLLIDED WITH TREES AND TERRAIN WHILE ATTEMPTING TO CLIMB FROM TAKEOFF WITH A SAILPLANE IN TOW. THE SAILPLANE RELEASED FROM THE TOW PLANE AND RETURNED TO THE DEPARTURE AIRPORT. ACCORDING TO THE PILOT THE AIRPLANE ENCOUNTERED LIGHT TO MODERATE TURBULENCE DURING INITIAL CLIMB AND THE AIRPLANE SANK INTO TREES ONE MILE NORTH OF THE AIRPORT. IN AN INTERVIEW AFTER THE ACCIDENT THE PILOT DID NOT REMEMBER DOING A WEIGHT AND BALANCE CALCULATION BEFORE TAKEOFF. WHEN QUESTIONED ABOUT STALL RECOGNITION AND RECOVERY THE PILOT STATED THAT THE ACCIDENT AIRPLANE WAS DIFFERENT FROM OTHER AIRCRAFT IN THAT YOU ONLY HAD TO HOLD THE NOSE UP AND THE AIRPLANE WOULD FLY ITSELF OUT. THE DENSITY ALTITUDE AT THE TIME OF THE ACCIDENT WAS 2500 FEET. THE AIRPLANE WAS ESTIMATED TO BE AT OR SLIGHTLY ABOVE ALLOWABLE GROSS WEIGHT AT TAKEOFF.

NTSB Probable Cause Narrative

INADEQUATE PREFLIGHT PLANNING AND PREPARATION AND AIRPLANE PERFORMANCE DATA NOT UNDERSTOOD BY THE PILOT. FACTORS ASSOCIATED WITH THE ACCIDENT ARE THE PILOT'S LACK OF TOTAL EXPERIENCE IN TYPE OF OPERATION, DELAYED REMEDIAL ACTION, AND THE OPERATOR'S INSUFFICIENT STANDARDS AND REQUIREMENTS.

Event Information

Type of Event Accident
Event Date 9/1/1991
Event Day of the Week Sunday
Time of Event 1637
Event Time Zone Central Daylight Time
Event City DECATUR
Event State ILLINOIS
Event Country --
Zipcode of the event site 62521
Event Date Year 1991
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport DECATUR
Event Location Nearest Airport ID DEC
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 680
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1647 Central Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID DEC
Elevation of weather observation facility 680
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 10000
Sky/Lowest/Cloud Conditions Thin Overcast
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 90
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 2500
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1604
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45249
Date of most recent change to record Dec 12 2000 10:44AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N686EE
NTSB Number CHI91LA279
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name VARGA
Aircraft Model 2180
Aircraft Series Identifier 2180
Aircraft Serial Number VAC17181
Certified Max Gross Weight 1817
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name ILLINOIS WING CIVIC AIR PATROL
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 310 S. MICHIGAN AVE.
Operator City CHICAGO
Operator State IL
Operator Country
Operator Zip code 60604
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1637
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code 4K4
Destination City HILVETY
Destination State IL
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --