Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Aberdeen, South Dakota
Monday, October 25, 1999 12:13 CDT
NTSB Narrative Summary Released at Completion of Accident
The full report is available on the NTSB Web site. See http://www.ntsb.gov/publictn/publictn.htm for details. SUMMARY On October 25, 1999, about 1213 central daylight time (CDT), a Learjet Model 35, N47BA, operated by Sunjet Aviation, Inc., of Sanford, Florida, crashed near Aberdeen, South Dakota. The airplane departed Orlando, Florida, for Dallas, Texas, about 0920 eastern daylight time (EDT). Radio contact with the flight was lost north of Gainesville, Florida, after air traffic control (ATC) cleared the airplane to flight level (FL) 390. The airplane was intercepted by several U.S. Air Force (USAF) and Air National Guard (ANG) aircraft as it proceeded northwestbound. The military pilots in a position to observe the accident airplane at close range stated (in interviews or via radio transmissions) that the forward windshields of the Learjet seemed to be frosted or covered with condensation. The military pilots could not see into the cabin. They did not observe any structural anomaly or other unusual condition. The military pilots observed the airplane depart controlled flight and spiral to the ground, impacting an open field. All occupants on board the airplane (the captain, first officer, and four passengers) were killed, and the airplane was destroyed.
NTSB Probable Cause Narrative
Incapacitation of the flight crewmembers as a result of their failure to receive supplemental oxygen following a loss of cabin pressurization, for undetermined reasons.
Event Information
| Type of Event | Accident |
| Event Date | 10/25/1999 |
| Event Day of the Week | Monday |
| Time of Event | 1213 |
| Event Time Zone | Central Daylight Time |
| Event City | ABERDEEN |
| Event State | SOUTH DAKOTA |
| Event Country | -- |
| Zipcode of the event site | |
| Event Date Year | 1999 |
| Event Date Month | 10 |
| 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 | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Unknown |
| Time of the weather observation | |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | -- |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | -- |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Unknown |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | -- |
| Air Temperature at event time (in degrees celsius) | -- |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| 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 | 6 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 6 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1626 |
| NTSB Notification Source | |
| NTSB Notification Date | Oct 25 1999 12:00AM |
| NTSB Notification Time | 1400 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | May 3 2002 2:49PM |
| User who most recently changed record | NTSB\HAMG |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N47BA |
| NTSB Number | DCA00MA005 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Learjet |
| Aircraft Model | 35 |
| Aircraft Series Identifier | 35 |
| Aircraft Serial Number | 35-060 |
| Certified Max Gross Weight | -- |
| 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 | -- |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | Jun 12 1999 12:00AM |
| Airframe hours since last inspection | 179 |
| Airframe Hours | 10506 |
| ELT Installed | Unknown |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | JETSHARES ONE, INC |
| Aircraft Owner Street Address | 1033 FIRST STREET |
| Aircraft Owner City | WINDSOR |
| Aircraft Owner State | NY |
| Aircraft Owner Country | -- |
| Aircraft Owner Zipcode | 12553 |
| Operator is an individual? | No |
| Operator Name | SUNJET AVIATION INC |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 1930 EAST AIRPORT BLVD |
| Operator City | SANFORD |
| Operator State | FL |
| Operator Country | -- |
| Operator Zip code | 32733 |
| Operator Code | SJ8A |
| Owner has at least one certificate | -- |
| 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 | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | MCO |
| Departure City | ORLANDO |
| Departure State | FL |
| Departure Country | USA |
| Departure Time | 919 |
| Departure Time Zone | EST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | DAL |
| Destination City | DALLAS |
| Destination State | TX |
| Destination Country | USA |
| Specific Phase of Flight | Climb |
| Report sent to ICAO? | -- |
| Evacuation occurred | No |
| Date of most recent change to record | May 3 2002 2:50PM |
| User who most recently changed record | NTSB\HAMG |
| 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 | -- |