Aircraft Incident/Accident Report
Cable Airport

Upland, California 91785
Saturday, January 8, 2000 10:34 PST

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NTSB Narrative Summary Released at Completion of Accident
During an air show, while conducting aerobatic maneuvers, the airplane continued in a spin to ground impact. According to witnesses, the pilot was performing an aerobatic routine with two other airplanes, known as a "squirrel cage" maneuver. The airplanes would take turns entering the aerobatic box to perform a single choreographed maneuver. The routine card indicated that the pilot was to perform multiple snap rolls when the accident occurred. A video of the pilot's routine was examined with the assistance of members of the International Aerobatic Club. The video showed that the pilot made 3 1/2 snap rolls to the right, and then 2 1/2 spins to the left. It appeared there was no flight control problem and the pilot entered a flat spin. The elevator appeared to be loaded and the pilot never broke the stall prior to impact. The pilot had written a magazine article advocating a specific spin recovery method.
NTSB Probable Cause Narrative
The pilot's failure to recover from an intentional aerobatic maneuver.
Event Information
Type of EventAccident 
Event Date1/8/2000 
Event Day of the WeekSaturday 
Time of Event1034 
Event Time ZonePacific Standard Time 
Event CityUPLAND  
Event StateCALIFORNIA 
Event Country-- 
Zipcode of the event site91785  
Event Date Year2000 
Event Date Month
MidAir Collision IndicatorNo 
On Ground Collision occurred ?No 
Event Location Latitude-- 
Event Location Longitude-- 
Event Location AirportCABLE  
Event Location Nearest Airport IDCCB  
Indicates whether the acc/inc occurred off or on an airportOn Airport 
Distance from airport in statute miles-- 
Degrees magnetic from airport-- 
Airport Elevation1439 
Weather Briefing CompletenessUnknown 
Investigator's weather sourceWeather Observation Facility 
Time of the weather observation1753 Pacific Standard Time 
Direction of event from weather observation facility (degrees)110 
Weather Observation Facility IDONT  
Elevation of weather observation facility943 
Distance of event from weather observation facility (units?)
Time Zone of the weather observationPST 
Lighting ConditionsDay 
Lowest Ceiling Height
Lowest Non-Ceiling Height20000 
Sky/Lowest/Cloud ConditionsScattered 
Sky Condition for Lowest CeilingUnknown 
Visibility Runway Visual Range (Feet)
Visibility Runway Visual Value (Statute Miles)
Visibility (Statute Miles) 10 
Air Temperature at event time (in degrees celsius)55 
Dew Point at event time (in degress fahrenheit)25 
Wind Direction (degrees magnetic)
Variable Wind IndicatorUnknown 
Wind Speed (knots)
Wind Velocity Indicator Unknown 
Wind Gust IndicatorNot Gusting 
Wind Gust (knots)
Altimeter Setting at event time (in. Hg) 30 
Density Altitude (feet)-- 
Intensity of PrecipitationUnknown 
METAR weather report -- 
Event Highest InjuryFatal 
On Ground, Fatal Injuries
On Ground, Minor Injuries
On Ground, Serious Injuries
Injury Total Fatal
Injury Total Minor-- 
Injury Total None-- 
Injury Total Serious-- 
Injury Total All
Investigating AgencyNTSB 
NTSB Docket Number (internal use)11246 
NTSB Notification Source-- 
NTSB Notification DateJan 8 2000 12:00AM 
NTSB Notification Time1100 
Fiche Number and/or location -used to find docket informationIMAGE 
Date of most recent change to recordJan 2 2002 7:11AM 
User who most recently changed recordNTSB\MONR  
Basic weather conditionsVisual Meteorological Cond 
FAA District Office-- 
Aircraft Involved
Aircraft #1
Aircraft Registration NumberN900SH 
NTSB NumberLAX00LA068  
Missing Aircraft Indicator
Federal Aviation Reg. PartPart 91: General Aviation 
Type of Flight Plan filedNone 
Flight plan Was Activated?-- 
DamageDestroyed 
Aircraft FireGround 
Aircraft ExplosionNone 
Aircraft Manufacturer's Full NameClark  
Aircraft ModelPITTS S1X  
Aircraft Series IdentifierPITTS S1X  
Aircraft Serial Number001  
Certified Max Gross Weight
Aircraft CategoryAirplane 
Aircraft Registration ClassU.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-- 
Number of Engines
Fixed gear or retractable gearFixed 
Aircraft, Type of Last InspectionAnnual 
Date of Last InspectionDec 6 1999 12:00AM 
Airframe hours since last inspection-- 
Airframe Hours395 
ELT InstalledUnknown 
ELT ActivatedUnknown 
ELT Aided Location of Event SiteUnknown 
ELT Type-- 
Aircraft Owner NameMARK MADDEN  
Aircraft Owner Street Address  
Aircraft Owner CityLA MESA  
Aircraft Owner StateCA 
Aircraft Owner Country  
Aircraft Owner Zipcode91941  
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 certificateNone 
Other Operator of large aircraft?No 
Certified for Part 133 or 137 OperationUnknown 
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 
Second Pilot on BoardNo 
Departure Point Same as EventYes 
Departure Airport CodeCCB  
Departure City  
Departure State  
Departure Country  
Departure Time
Departure Time Zone  
Destination Same as Local Fltdest & departure same, accident can occur anywhere 
Destination Airport Code  
Destination City  
Destination State  
Destination Country  
Specific Phase of FlightManeuvering 
Report sent to ICAO?-- 
Evacuation occurred-- 
Date of most recent change to recordDec 4 2001 2:49PM 
User who most recently changed recorddbo  
Since inspection or accident-- 
Event Location Runway Number and Location0  
Runway Length-- 
Runway Width-- 
Sight Seeing flightNo 
Air Medical FlightNo 
Medical Flight--