Brooks Field Airport
Aircraft Accident/Incident Report

Marshfield, Michigan 49068
Saturday, September 29, 2001 14:25 EDT

NTSB Narrative Summary Released at Completion of Accident

The glider contacted the runway during takeoff. The pilot reported that approximately 200 feet into the ground run, the glider became airborne. After reaching an altitude of about 5 feet, the glider settled to the runway and bounced. The pilot reported that he was wearing headphones, which slipped forward when the glider contacted the runway. As the headphones slipped forward, the pilot's hat was pulled down over his eyes. The glider became airborne again and because he was unable to see the tow plane, the pilot released the glider from the tow. The glider impacted hard on the runway and the pilot suffered a compression fracture in his back.

NTSB Probable Cause Narrative

The pilot's decision to release from the tow plane during the takeoff. A factor associated with the accident was the pilot's vision was restricted by his hat during the takeoff.

Event Information

Type of Event Accident
Event Date 9/29/2001
Event Day of the Week Saturday
Time of Event 1425
Event Time Zone Eastern Daylight Time
Event City Marshfield
Event State MICHIGAN
Event Country --
Zipcode of the event site 49068
Event Date Year 2001
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Brooks Field
Event Location Nearest Airport ID RMY
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 941
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1356 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID JXN
Elevation of weather observation facility 1001
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation EDT
Lighting Conditions Day
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) 18
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 50
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.34
Density Altitude (feet) 1066
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 11815
NTSB Notification Source Pilot
NTSB Notification Date Sep 8 2001 12:00AM
NTSB Notification Time 1000
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 4 2002 9:52AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Grand Rapids, MI FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N68PR
NTSB Number CHI01LA332
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AviaStrottel
Aircraft Model AC 4C
Aircraft Series Identifier --
Aircraft Serial Number 044
Certified Max Gross Weight 605
Aircraft Category Glider
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 1
Number of Engines --
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Jan 10 2001 12:00AM
Airframe hours since last inspection 3
Airframe Hours 100
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name John K. Gibson
Aircraft Owner Street Address 5225 Windyridge Drive
Aircraft Owner City Portage
Aircraft Owner State MI
Aircraft Owner Country USA
Aircraft Owner Zipcode 49002
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code RMY
Departure City Marshfield
Departure State MI
Departure Country USA
Departure Time 1425
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 May 15 2002 12:57PM
User who most recently changed record SULP
Since inspection or accident --
Event Location Runway Number and Location 10
Runway Length 2800
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --