# NTSB investigations, 1999, SD

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CHI00LA054](https://openairdocs.org/ntsb/CHI00LA054.md): Aerostar S49A · Flandreau, SD · Accident · Minor injuries · Limited investigation · Final report · Dec 31, 1999 · N6316U · Destroyed
  > The pilot's inadequate compensation for wind conditions, and the burner becoming disconnected from the balloon's frame. A contributing factor was the high wind condition.
- [NTSB DCA00MA005](https://openairdocs.org/ntsb/DCA00MA005.md): Learjet 35 · Aberdeen, SD · Accident · 6 fatal · Class 1 · Major · Final report · Oct 25, 1999 · N47BA · Destroyed
  > Incapacitation of the flight crewmembers as a result of their failure to receive supplemental oxygen following a loss of cabin pressurization, for undetermined reasons.
- [NTSB CHI00LA013](https://openairdocs.org/ntsb/CHI00LA013.md): Piper PA-32-300 · Custer, SD · Accident · Minor injuries · Limited investigation · Final report · Oct 20, 1999 · N2XT · Destroyed
  > the pilot's inadequate preflight planning and decision to perform an intersection takeoff, and the improper short field, rolling, intersection takeoff. A factor relating to this accident was the trees.
- [NTSB CHI99LA355](https://openairdocs.org/ntsb/CHI99LA355.md): Piper PA-28-181 · Hermosa, SD · Accident · Minor injuries · Limited investigation · Final report · Sep 30, 1999 · N3889F · Substantial damage
  > the pilot's improper fuel management, improper in-flight decision and the precautionary landing. Factors relating to this accident were the pilot's inadequate preflight planning and the fence post.
- [NTSB CHI99FA285](https://openairdocs.org/ntsb/CHI99FA285.md): Bell 206B · Custer, SD · Accident · 2 fatal · Field investigation · Final report · Aug 10, 1999 · N67JJ · Destroyed
  > The pilot's failure to maintain adequate altitude/clearance from the trees. Contributing to the accident was the pilot's inadvertent settling with power.
- [NTSB CHI99LA214](https://openairdocs.org/ntsb/CHI99LA214.md): Weatherly 620B · Timber Lake, SD · Accident · No injuries · Limited investigation · Final report · Jul 6, 1999 · N350WR · Substantial damage
  > the pilots selection of the shorter runway and his failure to abort the takeoff. Factors to the accident were the high density altitude, the fence and the fence posts.
- [NTSB CHI99LA193](https://openairdocs.org/ntsb/CHI99LA193.md): Air Tractor AT-301 · Veblen, SD · Accident · Minor injuries · Limited investigation · Final report · Jun 24, 1999 · N3159M · Substantial damage
  > was the pilot not maintaining clearance from terrain. A factor was the pilot not performing a load jettison.
- [NTSB CHI99FA089](https://openairdocs.org/ntsb/CHI99FA089.md): Piper PA-18-150 · Belle Fourche, SD · Accident · 2 fatal · Field investigation · Final report · Feb 6, 1999 · N8075D · Destroyed
  > inadequate preflight planning/preparation, refueling not performed, and aircraft control not maintained by the pilot. The inadvertent stall by the pilot was an additional cause. Fuel exhaustion was a contributing factor.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE year(c."eventDate") = 1999
  AND c."eventStateOrRegion" = 'SD' AND c."eventCountry" = 'USA'
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?state=SD&year=1999

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.