Aircraft Accident/Incident Report

East Jordan, Michigan 49727
Tuesady, July 31, 1990 10:38 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT OF A HOMEBUILT AEROBATIC BIPLANE WAS PERFORMING LOW ALTITUDE AEROBATICS FOR FRIENDS. THE AIRPLANE WAS FLYING INVERTED AT AN ESTIMATED ALTITUDE OF 300 FEET ABOVE THE GROUND WHEN IT DESCENDED AND COLLIDED WITH THE GROUND. WITNESSES ESTIMATED ITS ANGLE OF DESCENT AND SPEED TO BE 60 DEGREES AND 170 M.P.H., RESPECTIVELY.

NTSB Probable Cause Narrative

THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN ALTITUDE DURING LOW ALTITUDE AEROBATICS.

Event Information

Type of Event Accident
Event Date 7/31/1990
Event Day of the Week Tuesday
Time of Event 1038
Event Time Zone Eastern Daylight Time
Event City EAST JORDAN
Event State MICHIGAN
Event Country --
Zipcode of the event site 49727
Event Date Year 1990
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
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 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1015 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 230
Weather Observation Facility ID TVC
Elevation of weather observation facility 624
Distance of event from weather observation facility (units?) 38
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 3000
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) 20
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency FAA
NTSB Docket Number (internal use) 2188
NTSB Notification Source --
NTSB Notification Date Jul 31 1990 12:00AM
NTSB Notification Time 1115
Fiche Number and/or location -used to find docket information 45114
Date of most recent change to record Dec 12 2000 5:08PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N15Z
NTSB Number CHI90DEM07
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PITTS
Aircraft Model SA-1
Aircraft Series Identifier SA-1
Aircraft Serial Number 01
Certified Max Gross Weight 1075
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 1 1990 12:00AM
Airframe hours since last inspection 2
Airframe Hours 728
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ZIEGLER, DONALD C.
Aircraft Owner Street Address RT. 3
Aircraft Owner City EAST JORDAN
Aircraft Owner State MI
Aircraft Owner Country
Aircraft Owner Zipcode 49727
Operator is an individual? --
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? 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 Maneuvering
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 --