# NTSB investigations: Continental GTSIO-520-C, 1989

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 BFO90LA014](https://openairdocs.org/ntsb/BFO90LA014.md): Cessna 421B · Chesapeake, VA · Accident · Minor injuries · Limited investigation · Final report · Nov 28, 1989 · N3359Q · Destroyed
  > The pilot misjudged distance and altitude to the runway, while on final approach to land. The light condition at dusk was a related factor.
- [NTSB DEN89LA199](https://openairdocs.org/ntsb/DEN89LA199.md): Cessna T210F · Englewood, CO · Accident · Serious injuries · Limited investigation · Final report · Aug 24, 1989 · N6121R · Substantial damage
  > A failure in the hyrdraulic power unit, which prevented operation of either the normal or emergency gear extension systems. The raised runway lip contributed to aircraft damage and pilot injury.
- [NTSB LAX89LA217](https://openairdocs.org/ntsb/LAX89LA217.md): Cessna 421 · Picacho, AZ · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 1989 · N421S · Destroyed
  > Failure of the number three exhaust valve on the left engine. A major factor was the high density altitude where the airplane would not operate on single engine.
- [NTSB ATL89LA121](https://openairdocs.org/ntsb/ATL89LA121.md): Aero Commander 685 · Southern Pines, NC · Accident · Minor injuries · Limited investigation · Final report · Apr 5, 1989 · N685RB · Substantial damage
  > The pilot's improper use of the mixture controls which resulted in engine roughness and the failure to properly execute the emergency procedure for a rough engine by placing the fuel boost pump switch in the low position.
- [NTSB FTW89FA074](https://openairdocs.org/ntsb/FTW89FA074.md): Cessna 421 · Brownsville, TX · Accident · 1 fatal · Field investigation · Final report · Mar 29, 1989 · N4595L · Destroyed
  > The pilot's improper emergency procedure after lossing power in the right engine, and his failure to maintain minimum control speed (VMC), which resulted in a loss of aircraft control. Factors related to the accident were: fuel starvation of the right engine,…

## 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") = 1989
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17035'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17035&year=1989

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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.