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| Title: | Pressurization failure, Sunjet Aviation, Learjet Model 35, N47BA, Aberdeen, South Dakota, October 25, 1999 |
| Micro summary: | This Learjet 35 experienced a pressurization failure, incapacitating all occupants and eventually ending up in a crash. |
| Event Time: | 1999-10-25 at 1213 CDT |
| File Name: | 1999-10-25-US.pdf |
| Publishing Agency: | National Transportation Safety Board (NTSB) |
| Publishing Country: | USA |
| Report number: | NTSB/AAB-00/01 |
| Pages: | 35 |
| Site of event: | Near Aberdeen, South Dakota |
| Latitude/Longitude: | N45°25' W98°45' |
| Departure: | Orlando Sanford International Airport, Orlando, Florida, USA |
| Destination: | Dallas Love Field Airport, Dallas, Texas, USA |
| Airplane Type(s): | Learjet Model 35 |
| Flight Phase: | Cruise |
| Registration(s): | N47BA |
| Operator(s): | Sunjet Aviation |
| Type of flight: | Revenue |
| Occupants: | 6 |
| Fatalities: | 6 |
| Serious Injuries: | 0 |
| Minor/Non-Injured: | 0 |
| Other Injuries: | 0 |
| Executive Summary: | 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. [Payne Stewart Crash] |
| Learning Keywords: | Operations - Maintenance |
| Operations - Uncontrolled Flight into Terrain | |
| Systems - Pressurization | |
| Consequence - Hull Loss |
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