# NTSB investigations: AiResearch TPE331-5&6SER, CA

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 GAA15CA303](https://openairdocs.org/ntsb/GAA15CA303.md): Mitsubishi MU 2B-25 · Arvin, CA · Accident · No injuries · Data collection · Final report · Aug 22, 2015 · N553T · Substantial damage
  > The pilot's failure to maintain clearance from trees while taxiing into position for takeoff on a narrow private airstrip, resulting in the left wing striking a tree.
- [NTSB WPR15TA002](https://openairdocs.org/ntsb/WPR15TA002.md): Rockwell International 690B · Grass Valley, CA · Accident · No injuries · Final report · Oct 4, 2014 · N700PQ · Substantial damage
  > The pilot’s unstabilized approach and failure to go around and his subsequent failure to maintain directional control during the landing roll.
- [NTSB LAX99LA241](https://openairdocs.org/ntsb/LAX99LA241.md): Rockwell 690B · Monterey, CA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1999 · N480K · Substantial damage
  > The failure of maintenance personnel to properly adjust the drag brace preload during recent landing gear maintenance, which resulted in the overload failure and separation of the hydraulic cylinder attach boss.
- [NTSB LAX97LA132](https://openairdocs.org/ntsb/LAX97LA132.md): Beech 100 · San Carlos, CA · Accident · No injuries · Limited investigation · Final report · Mar 27, 1997 · N60TJ · Substantial damage
  > the pilot's improper flare, which resulted in a hard landing; his improper adjustment of the landing gear warning horn squat switch(es); and his decision to attempt flight with known equipment deficiencies.
- [NTSB LAX96LA196](https://openairdocs.org/ntsb/LAX96LA196.md): Ayres S2R-G6 · Williams, CA · Accident · No injuries · Limited investigation · Final report · May 11, 1996 · N447AT · Substantial damage
  > The pilot's failure to maintain directional control during a rejected takeoff, and the catastrophic failure of the engine's turbine section due to an improper overhaul procedure. A factor in the accident was the close proximity of the drainage ditch to the…
- [NTSB LAX88LA218](https://openairdocs.org/ntsb/LAX88LA218.md): Rockwell 690C · Hayward, CA · Accident · No injuries · Limited investigation · Final report · Jun 8, 1988 · N47TT · Substantial damage
  > At the end of a cross country flight, while on final approach to the runway, the right engine quit. Shortly thereafter, the left engine quit. The pilot made a forced landing in a field short of the runway where during the landing roll the airplane collided…

## 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 c."eventStateOrRegion" = 'CA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('01515'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=01515&state=CA

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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.