Highland-Winet Airport
Aircraft Accident/Incident Report

Highland, Illinois 62249
Saturday, September 14, 1996 14:30 CDT

NTSB Narrative Summary Released at Completion of Accident

A Piper PA-25 tow plane was used to tow a Blanik L-23 Glider (sailplane) to about 1,200 feet AGL, west of the airport. After release of the glider, the tow pilot returned to the airstrip and entered a right traffic pattern (from the east) to land on the runway for powered aircraft (powered runway 36). Meanwhile, the Blanik/glider pilot did not get the expected lift and had entered a left downwind for landing on the parallel runway for sailplanes (sailplane runway 36). Another sailplane was ahead of the Blanik, so the Blanik pilot extended the downwind turn to base. When he turned base leg, he was further from the runway and lower than normal. At about that same time, the PA-25 tow plane was on the base leg for the powered runway 36. Because the Blanik was lower than expected and because the other glider had just landed, the pilot of the Blanik chose to land on the powered runway, which could be used by gliders in emergency situations. The PA-25 pilot reported that she did not see the Blanik in front and underneath the PA-25. At about the time the Blanik touched down, the PA-25 landed on top of the Blanik, straddling the glider until both aircraft rolled to a stop. Both aircraft were owned and operated by the same sailplane soaring association, and neither aircraft was equipped with a radio.

NTSB Probable Cause Narrative

failure of the Piper PA-25 tow pilot to see-and-avoid the Blanik L-23 glider. A factor relating to the accident was: neither aircraft was equipped with a communication radio.

Event Information

Type of Event Accident
Event Date 9/14/1996
Event Day of the Week Saturday
Time of Event 1430
Event Time Zone Central Daylight Time
Event City HIGHLAND
Event State ILLINOIS
Event Country --
Zipcode of the event site 62249
Event Date Year 1996
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? Yes
Event Location Latitude
Event Location Longitude
Event Location Airport HIGHLAND-WINET
Event Location Nearest Airport ID H07
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 537
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 918 Central Daylight Time
Direction of event from weather observation facility (degrees) 200
Weather Observation Facility ID BLV
Elevation of weather observation facility 453
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 12000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 20
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 170
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1177
NTSB Notification Source --
NTSB Notification Date Sep 14 1996 12:00AM
NTSB Notification Time 1956
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Apr 7 2001 12:43PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number N7753Z N7906
NTSB Number CHI96LA339A CHI96LA339B
Missing Aircraft Indicator N N
Federal Aviation Reg. Part Part 91: General Aviation Part 91: General Aviation
Type of Flight Plan filed None None
Flight plan Was Activated? -- --
Damage Minor Substantial
Aircraft Fire None None
Aircraft Explosion None None
Aircraft Manufacturer's Full Name Piper Let
Aircraft Model PA-25 SUPER BLANIK L-23
Aircraft Series Identifier PA-25 SUPER BLAN
Aircraft Serial Number 25-3936 917906
Certified Max Gross Weight 2900 550
Aircraft Category Airplane Glider
Aircraft Registration Class U.S. Registered/U.S. Soil U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No No
Flight Crew Seats -- --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 1 2
Number of Engines 1 --
Fixed gear or retractable gear Fixed Fixed
Aircraft, Type of Last Inspection Annual Annual
Date of Last Inspection -- --
Airframe hours since last inspection -- --
Airframe Hours -- --
ELT Installed Yes No
ELT Activated No Unknown
ELT Aided Location of Event Site Unknown Unknown
ELT Type -- --
Aircraft Owner Name ST. LOUIS SOARING ST. LOUIS SOARING
Aircraft Owner Street Address 10028 MANCHESTER RD, BOX 212 10028 MANCHESTER RD, BOX 212
Aircraft Owner City GLENDALE GLENDALE
Aircraft Owner State MO MO
Aircraft Owner Country
Aircraft Owner Zipcode 63122 63122
Operator is an individual? -- --
Operator Name
Operator Same as Owner? Yes Yes
Operator Is Doing Business As -- --
Operator Address Same as Owner? Yes Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None None
Other Operator of large aircraft? No No
Certified for Part 133 or 137 Operation Unknown 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) Unknown Personal
Second Pilot on Board No Yes
Departure Point Same as Event Yes Yes
Departure Airport Code H07 H07
Departure City
Departure State
Departure Country
Departure Time 0 0
Departure Time Zone
Destination Same as Local Flt dest & departure same, accident can occur anywhere dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing Landing
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Jan 2 2001 10:34AM Jan 2 2001 10:30AM
User who most recently changed record dbo dbo
Since inspection or accident -- --
Event Location Runway Number and Location 36 36
Runway Length 2600 2000
Runway Width 100 100
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --