Individually Owned: 150,657
Corporate Owned: 137,281
Montgomery County Airport
Aircraft Accident/Incident Report
Conroe, Texas 77305
Sunday, September 12, 1999 15:00 CDT
NTSB Narrative Summary Released at Completion of Accident
During the takeoff/initial climb at 250 feet agl, the gyroplane was observed in a nose high attitude, banked right, when the main rotor blade at the 6 o'clock position appeared to stop moving and the main rotor blade at the 12 o'clock position appeared to fold back on itself. The gyroplane, under full power, nose dived onto a taxiway and continued into the adjacent grassy area before coming to rest. Prior to the accident flight, the builder/owner found no discrepancies with the gyroplane during his preflight and flight. He further stated that the 'gyroplane was 100 percent perfect for flight.' The builder/owner stated that the accident pilot 'unloaded the blades, the blades flapped, and with the engine at full power, the gyroplane entered a somersault.' Examination of the main rotor blades and hub revealed damage consistent with severe instability in the main rotor system. The pilot had accumulated 10 hours in gyroplanes and had not flown the accident gyroplane in a year.
NTSB Probable Cause Narrative
The pilot's failure to maintain aircraft control during the takeoff/initial climb. A factor was the pilot's lack of recent experience in the type of aircraft.
Event Information
| Type of Event | Accident |
| Event Date | 9/12/1999 |
| Event Day of the Week | Sunday |
| Time of Event | 1500 |
| Event Time Zone | Central Daylight Time |
| Event City | CONROE |
| Event State | TEXAS |
| Event Country | -- |
| Zipcode of the event site | 77305 |
| Event Date Year | 1999 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | MONTGOMERY COUNTY |
| Event Location Nearest Airport ID | CXO |
| 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 | 245 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1453 Central Standard Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | CXO |
| Elevation of weather observation facility | 245 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | CST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 6000 |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 33 |
| Dew Point at event time (in degress fahrenheit) | 18 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| 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 | NTSB |
| NTSB Docket Number (internal use) | 1845 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Sep 12 1999 12:00AM |
| NTSB Notification Time | 1520 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Apr 9 2001 8:55AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N813AC |
| NTSB Number | FTW99FA256 |
| 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 | SPAGNOLETTI |
| Aircraft Model | AIR COMMAND 582 |
| Aircraft Series Identifier | AIR COMMAN |
| Aircraft Serial Number | 582AC11004 |
| Certified Max Gross Weight | 980 |
| Aircraft Category | Gyrocraft |
| 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 | Apr 1 1999 12:00AM |
| Airframe hours since last inspection | 39 |
| Airframe Hours | 100 |
| ELT Installed | Unknown |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | ANTHONY SPAGNOLETTI |
| Aircraft Owner Street Address | 27045 HANNA ROAD |
| Aircraft Owner City | CONROE |
| Aircraft Owner State | TX |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 77385 |
| 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 | CXO |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1500 |
| Departure Time Zone | CDT |
| 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 | Oct 10 2002 3:15PM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 19 |
| Runway Length | 3974 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |