Individually Owned: 151,817
Corporate Owned: 140,587
Lee Gilmer Memorial Airport
Aircraft Accident/Incident Report
Gainesville, Georgia 30501
Monday, April 1, 2002 15:00 EST
NTSB Narrative Summary Released at Completion of Accident
The pilot and CFI were conducting a series of touch and go landings when smoke was seen streaming from the right lower section of the engine cowling after take off. Witnesses also reported hearing a rough engine condition. At approximately the same time, the pilot initiated a left turn towards the airport. The airplane was last seen in a nose low attitude. The airplane disappeared below the tree line and collided with the ground. Examination of the engine revealed damage throughout the supercharger assembly. The supercharge impeller was not totally secure on the impeller shaft. The impeller shaft retainer nut was loose on its shaft. This nut as well as the impeller shaft gear-teeth showed signs of wear. These teeth were worn down and disfigured. Both the aluminum cover plate and the bottom of the impeller blades showed signs of circular scraping. Small pieces of metal were found throughout the engine. Disassembly of the oil filter revealed metal shavings throughout. No metal parts or gear teeth were found in the oil sump.
NTSB Probable Cause Narrative
A loss of engine power following a supercharger bearing failure and subsequent collision with the ground while maneuvering for an emergency landing.
Event Information
| Type of Event | Accident |
| Event Date | 4/1/2002 |
| Event Day of the Week | Monday |
| Time of Event | 1500 |
| Event Time Zone | Eastern Standard Time |
| Event City | Gainesville |
| Event State | GEORGIA |
| Event Country | -- |
| Zipcode of the event site | 30501 |
| Event Date Year | 2002 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 341623N |
| Event Location Longitude | 0834937W |
| Event Location Airport | Lee Gilmer Memorial |
| Event Location Nearest Airport ID | GVL |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | 200 |
| Airport Elevation | 1275 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1453 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 229 |
| Weather Observation Facility ID | PDK |
| Elevation of weather observation facility | 1002 |
| Distance of event from weather observation facility (units?) | 34 |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | -- |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 21 |
| Dew Point at event time (in degress fahrenheit) | 4 |
| Wind Direction (degrees magnetic) | 290 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.01 |
| Density Altitude (feet) | 1855 |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 2 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 14143 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Apr 1 2002 12:00AM |
| NTSB Notification Time | 1530 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Nov 25 2003 11:36AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Atlanta Fsdo |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7471C |
| NTSB Number | ATL02FA072 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | North American |
| Aircraft Model | T-6-AT6D |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 42-85550 |
| Certified Max Gross Weight | 4225 |
| Aircraft Category | Airplane |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Oct 10 2001 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 5440.11 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Roger D Henderson |
| Aircraft Owner Street Address | 42 Christopher CT |
| Aircraft Owner City | El Sobrante |
| Aircraft Owner State | CT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 94803 |
| Operator is an individual? | No |
| Operator Name | U.S. Aircraft Inc., LLC |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 709 Key Royale Drive |
| Operator City | Holmes Beach |
| Operator State | FL |
| Operator Country | USA |
| Operator Zip code | 34218 |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | GVL |
| Departure City | Gainesville |
| Departure State | GA |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | EST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | GVL |
| Destination City | Gainesville |
| Destination State | GA |
| Destination Country | USA |
| Specific Phase of Flight | Takeoff - initial climb |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Sep 18 2003 1:04PM |
| User who most recently changed record | POWP |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 290 |
| Runway Length | 4001 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |