Private Airport
Aircraft Accident/Incident Report

Zeeland, Michigan 49464
Sunday, August 22, 1993 12:30 EDT

NTSB Narrative Summary Released at Completion of Accident

THE HOMEBUILT AIRPLANE WAS UNDERGOING MAINTENANCE FLIGHT TESTS AFTER 2 1/2 YEARS OF STORAGE. DURING INITIAL CLIMBOUT FROM TAKEOFF, THE AIRPLANE BEGAN AN UNCONTROLLED DESCENT AND LEFT HAND BANK. THE LEFT WING, FOLLOWED BY THE NOSE, COLLIDED WITH THE GROUND. A WITNESS REPORTED OBSERVING A PORTION OF THE LEFT WING'S MYLAR COVERING STANDING UP ON THE WING DURING THE FLIGHT. AN ON-SCENE INVESTIGATION REVEALED THAT THE TAPE HOLDING THE MYLAR WING COVERING DOWN HAD PEELED OFF THE LEFT WING'S LEADING EDGE.

NTSB Probable Cause Narrative

an inadequate maintenance inspection by the pilot/owner and the separation of the wing skin.

Event Information

Type of Event Accident
Event Date 8/22/1993
Event Day of the Week Sunday
Time of Event 1230
Event Time Zone Eastern Daylight Time
Event City ZEELAND
Event State MICHIGAN
Event Country --
Zipcode of the event site 49464
Event Date Year 1993
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PRIVATE
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1250 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 70
Weather Observation Facility ID GRR
Elevation of weather observation facility 794
Distance of event from weather observation facility (units?) 21
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 4500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 13
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1700
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency FAA
NTSB Docket Number (internal use) 1254
NTSB Notification Source --
NTSB Notification Date Aug 22 1993 12:00AM
NTSB Notification Time 800
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:33PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N534AA
NTSB Number CHI93DEM02
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name SHEATS
Aircraft Model FALCON-XP
Aircraft Series Identifier FALCON-XP
Aircraft Serial Number 600157
Certified Max Gross Weight 1000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Aug 15 1987 12:00AM
Airframe hours since last inspection 35
Airframe Hours 130
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name RALPH WAYNE THORPE
Aircraft Owner Street Address 5012 72ND AVENUE
Aircraft Owner City ZEELAND
Aircraft Owner State MI
Aircraft Owner Country
Aircraft Owner Zipcode 49464
Operator is an individual? --
Operator Name RALPH WAYNE THORPE
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 5012 72ND AVENUE
Operator City ZEELAND
Operator State MI
Operator Country
Operator Zip code 49464
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 0
Departure Time Zone
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? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 1250
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --