Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Lakelanier Isl., Georgia 30518
Thursday, October 11, 2001 16:40 EDT
NTSB Narrative Summary Released at Completion of Accident
Approximately 3 1/2 hours into the flight while flying at 5,000 feet, the pilot heard a loud bang followed by "extreme vibration" of the airframe. He noted a total loss of engine power and a slight smell of smoke. The flight was vectored to a nearby airport but based on the altitude and distance, the pilot was unable to land there. The airplane was ditched with full flaps in a lake and after touchdown the airplane became inverted. The pilot and one passenger exited the airplane which was recovered revealing an oil residue in the engine compartment and also on the bottom skin of the fuselage. Examination of the engine revealed that the right side of the accessory case was displaced aft approximately 2 inches, the crankcase was fractured from the No. 5 to the No. 6 cylinder positions, the crankshaft and the No. 6 cylinder connecting rod were fracture separated. Disassembly of the engine revealed that the No. 5 main bearing saddle was separated from the crankcase and sustained "heavy damage." The parting surfaces of the crankcase halves at the No, 4 main bearing position exhibited "light fretting." Additionally, the crankshaft was fractured at the rear No. 5 crankpin to counterweight cheek area. Metallurgical examination of the fracture surface of the crankshaft revealed fatigue. No, "... non-conformances could be found with the crankshaft or other associated components." The engine had accumulated approximately 296 hours since manufacture at the time of the failure as determined by the airplane's recording tachometer. Review of the maintenance records revealed that the engine oil was drained and serviced last on September 25, 2001.
NTSB Probable Cause Narrative
The fatigue failure of the crankshaft for undetermined reasons resulting in the total loss of engine power. A contributing factor in the accident was the unsuitable terrain encountered by the pilot during the forced landing.
Event Information
| Type of Event | Accident |
| Event Date | 10/11/2001 |
| Event Day of the Week | Thursday |
| Time of Event | 1640 |
| Event Time Zone | Eastern Daylight Time |
| Event City | LakeLanier Isl. |
| Event State | GEORGIA |
| Event Country | -- |
| Zipcode of the event site | 30518 |
| Event Date Year | 2001 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 341824N |
| Event Location Longitude | 0835248W |
| 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 | 3.7 |
| Degrees magnetic from airport | 305 |
| Airport Elevation | -- |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1653 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 125 |
| Weather Observation Facility ID | KGVL |
| Elevation of weather observation facility | 1275 |
| Distance of event from weather observation facility (units?) | 3 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 8000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 23 |
| Dew Point at event time (in degress fahrenheit) | 14 |
| Wind Direction (degrees magnetic) | 130 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.19 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 2 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11875 |
| NTSB Notification Source | FAA Atlanta Comm Center |
| NTSB Notification Date | Oct 11 2001 12:00AM |
| NTSB Notification Time | 1731 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jun 18 2002 10:15AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | College Park, GA |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N919LL |
| NTSB Number | MIA02LA008 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | T206H |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | T20608174 |
| Certified Max Gross Weight | 3600 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Jun 1 2001 12:00AM |
| Airframe hours since last inspection | 101 |
| Airframe Hours | 296 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Longleaf, LLC |
| Aircraft Owner Street Address | Rural Route 2 Box 1420 |
| Aircraft Owner City | Newton |
| Aircraft Owner State | GA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 31770 |
| Operator is an individual? | No |
| 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? | -- |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | KJST |
| Departure City | JOHNSTOWN |
| Departure State | PA |
| Departure Country | USA |
| Departure Time | 1300 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | KPDK |
| Destination City | ATLANTA |
| Destination State | GA |
| Destination Country | USA |
| Specific Phase of Flight | Emergency descent/landing |
| Report sent to ICAO? | No |
| Evacuation occurred | Yes |
| Date of most recent change to record | May 30 2002 3:27PM |
| User who most recently changed record | KENJ |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |