Aircraft Accident/Incident Report

Frankfort, Michigan 49635
Sunday, August 8, 2004 13:55 EDT

NTSB Narrative Summary Released at Completion of Accident

The airplane used for glider aero-tow was destroyed by post-impact fire after it impacted the terrain during takeoff climb. The tow pilot reported that he was departing the grass airstrip with a glider in tow. The glider was positioned to the right of the tow plane. During the takeoff ground run, the glider aborted the takeoff by releasing the tow line. The tow pilot reported that the tow plane "suddenly yawed 45 degrees" to the left and veered off the left side of the grass airstrip and "crossed a marsh/wetland area" southwest of the runway. He reported the airplane was still at full power and was at minimum controllable airspeed. The pilot reported that he continued the takeoff and attempted to climb over a tree line, but the airplane had "insufficient airspeed and stalled." The airplane impacted the terrain and caught fire. The tow airplane utilized had a five point pilot restraint harness and the pilot received minor injuries. He exited the airplane before the airplane was consumed by fire. The glider pilot reported he aborted the takeoff when he saw the tow plane veering toward the left side of the runway. The glider rolled out on the airstrip without damage. An inspection of the accident site revealed that the tow plane was about 30 feet from the left side of the runway when the glider aborted its takeoff. Then the tow plane traveled about 150-175 feet through the tall grass before it lifted off and attempted flight. The tree line was located approximately 250 feet from the point of lift off. At 1415, the observed wind, approximately 28 nautical miles south of the accident site, were 250 degrees at 6 knots. The runway in use was runway 33. The glider pilot reported the wind from the south produced a 5 knot tailwind.

NTSB Probable Cause Narrative

The tow pilot failed to maintain directional control during takeoff roll and failed to abort the takeoff. Additionally, the tow pilot failed to attain adequate airspeed which resulted in a stall. The tailwind and the tall grass were contributing factors.

Event Information

Type of Event Accident
Event Date 8/8/2004
Event Day of the Week Sunday
Time of Event 1355
Event Time Zone Eastern Daylight Time
Event City Frankfort
Event State MICHIGAN
Event Country --
Zipcode of the event site 49635
Event Date Year 2004
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 443730N
Event Location Longitude 0861203W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID MBL
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Dawn
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 250
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.06
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 16479
NTSB Notification Source FAA
NTSB Notification Date Aug 8 2004 12:00AM
NTSB Notification Time 1410
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Oct 28 2004 10:11AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA Grand Rapids, MI FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N54517
NTSB Number CHI04CA218
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 305A
Aircraft Series Identifier --
Aircraft Serial Number JU-4
Certified Max Gross Weight 2100
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 Annual
Date of Last Inspection Jun 4 2004 12:00AM
Airframe hours since last inspection 25
Airframe Hours 1870
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Northwest Soaring Club
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country --
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name Northwest Soaring Club
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. Box 88
Operator City Frankfort
Operator State MI
Operator Country USA
Operator Zip code 49635
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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) Other Work Use
Second Pilot on Board --
Departure Point Same as Event Yes
Departure Airport Code FKS
Departure City Frankfort
Departure State MI
Departure Country USA
Departure Time --
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Takeoff
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Sep 9 2004 4:52PM
User who most recently changed record DINC
Since inspection or accident Last Inspection
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --