# NTSB investigations: AiResearch TPE331 series, 1999

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 MIA00LA004](https://openairdocs.org/ntsb/MIA00LA004.md): Fairchild SA227-AC · Opa Locka, FL · Accident · No injuries · Limited investigation · Final report · Oct 12, 1999 · N438MA · Substantial damage
  > The improper flare by the co-pilot, and the failure of the captain to take remedial action by applying power to arrest the observed high rate of descent resulting in a hard landing. A finding in the accident was the inadequate maintenance adjustment of the…
- [NTSB LAX99LA281](https://openairdocs.org/ntsb/LAX99LA281.md): Ayres S2R-G10 · Stanfield, AZ · Accident · Minor injuries · Limited investigation · Final report · Aug 24, 1999 · N20523 · Substantial damage
  > The pilot's delay in aborting the takeoff after noting sluggish acceleration during the takeoff roll, which resulted in a runway overrun.
- [NTSB CHI99LA175](https://openairdocs.org/ntsb/CHI99LA175.md): Ayres S2R-G10 · North Platte, NE · Accident · No injuries · Limited investigation · Final report · Jun 6, 1999 · N3024U · Substantial damage
  > The pilot failed to maintain directional control during takeoff.
- [NTSB IAD99LA045](https://openairdocs.org/ntsb/IAD99LA045.md): Gulfstream American 690C · Hot Springs, VA · Accident · No injuries · Limited investigation · Final report · May 24, 1999 · N840V · Substantial damage
  > A hard landing due to the pilot's inadequate compensation for the wind conditions.
- [NTSB ATL99LA054](https://openairdocs.org/ntsb/ATL99LA054.md): Mitsubishi MU-2B-20 · Knoxville, TN · Accident · No injuries · Limited investigation · Final report · Mar 12, 1999 · N176BJ · Substantial damage
  > A loss of engine power for undetermined reasons. Contributing to the accident was the failure of the landing gear to extend for undetermined reasons.
- [NTSB DEN99LA047](https://openairdocs.org/ntsb/DEN99LA047.md): Swearingen SA226TC · Denver, CO · Accident · No injuries · Limited investigation · Final report · Mar 5, 1999 · N151SA · 2 aircraft · Substantial damage
  > The pilot of N328BA's failure to maintain visual lookout while taxiing, causing the subsequent collision with N151SA.
- [NTSB NYC99IA056](https://openairdocs.org/ntsb/NYC99IA056.md): Piper PA42-1000 · Lexington, KY · Incident · No injuries · Incident investigation · Final report · Feb 5, 1999 · N37KW · Minor damage
  > Improper assembly of the engine gearcase by the manufacturer, which resulted in an uncontained failure of the 1st bull gear.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('01514', '01517'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=01514&year=1999

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