# Accident 19991025046299A: Gates Lear Jet 35, Aberbeen, SD, October 25, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 25, 1999, 13:16 local time
- Place: Aberbeen, SD
- Damage: No damage
- Operating rules: Air taxi and commuter (Part 135)
- Operator: SJ8R
- Aircraft: N47BA, a cancelled registration (https://openairdocs.org/deregistered/N47BA-2018-01-24) (OpenAirDocs)
- Registry model: Gates Lear Jet 35 (registry code 5170600, https://openairdocs.org/model/gates-lear-jet-35) (OpenAirDocs)
- Registry engine: Garrett TFE731 series (registry code 29001, https://openairdocs.org/engine/garrett-tfe731-series) (OpenAirDocs)
- NTSB investigation: [NTSB DCA00MA005](https://openairdocs.org/ntsb/DCA00MA005) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19991025046299A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) AIRCRAFT CRASHED IN A SWAMPY AREA NEAR MINA, SD. THE AIRCRAFT WAS DESTROYED AND TWO CREWMEMBERS AND FOUR PASSENGERS WERE FATALLY INJURED. THE LAST AIR TRAFFIC COMMUNICATION WITH THE AIRCRAFT WAS AT APPROXIMATELY 0944 EDT NORTHWEST OF GAINESVILLE, FL WHERE THE FLIGHT RECEIVED CLEARANCE TO FL390. AIR TRAFFIC NOTICED THE AIRCRAFT DEVIATE FROM IT'S ASSIGNED FLIGHT PLAN AND ATTEMPTED TO CONTACT THE AIRCRAFT WITH NO SUCCESS. TACTICAL AIRCRAFT INTERCEPTED THE FLIGHT, BUT WERE UNABLE TO SEE ANY SIGNS OF LIFE. THE AIRCRAFT REPORTEDLY RAN OUT OF FUEL AND DESCENDED INTO TERRAIN.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DCA00MA005](https://openairdocs.org/ntsb/DCA00MA005), Oct 25, 1999: Learjet 35 (N47BA), Aberdeen, SD, destroyed, 6 fatal. Probable cause: Incapacitation of the flight crewmembers as a result of their failure to receive supplemental oxygen following a loss of cabin pressurization, for undetermined reasons.

## Other reports on N47BA (1)

Matched to the same aircraft by N-number and date.

- [Incident 19860924078559I](https://openairdocs.org/incident/19860924078559I), Sep 24, 1986: Lear 35LEAR (N47BA), Cincinnati, OH. Pilot made an unauthorized turn during departure causing a traffic conflict.[privacy data omitted]

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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