# NTSB investigations: Franklin 6A4150 series, 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 DEN89LA226](https://openairdocs.org/ntsb/DEN89LA226.md): Universal Stinson 108-1 · Hudson, CO · Accident · Minor injuries · Limited investigation · Final report · Sep 30, 1989 · N8607K · Substantial damage
  > Partial loss of engine power for an unknown reason. A factor related to the accident was: the alfalfa crop.
- [NTSB LAX89LA298](https://openairdocs.org/ntsb/LAX89LA298.md): Stinson 108 · Cool, CA · Accident · No injuries · Limited investigation · Final report · Sep 1, 1989 · N97628 · Substantial damage
  > Failure of the #2 piston. Failure of the mechanic to properly overhaul the engine was a related factor.
- [NTSB LAX89LA168](https://openairdocs.org/ntsb/LAX89LA168.md): Stinson 108 · Avalon, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 22, 1989 · N97169 · Substantial damage
  > The pilot's inadequate compensation for the downdrafts he encountered and the delay in his decision to perform a go-around.
- [NTSB SEA89LA051](https://openairdocs.org/ntsb/SEA89LA051.md): Stinson 108-1 · Albany, OR · Accident · No injuries · Limited investigation · Final report · Feb 25, 1989 · N97764 · Substantial damage
  > The failure of the student pilot to maintain directional control of the airplane during landing and the improper use of flight controls. Contributing to the accident were the crosswind and the pilot's lack of total experience.
- [NTSB MKC89LA052](https://openairdocs.org/ntsb/MKC89LA052.md): Stinson 108-1 · South St. Paul, MN · Accident · No injuries · Limited investigation · Final report · Jan 16, 1989 · N8726K · Substantial damage
  > The failure of the pilot to maintain directional control of the airplane. Contributing to the accident were the crosswind conditions.
- [NTSB MIA89LA069](https://openairdocs.org/ntsb/MIA89LA069.md): Bellanca 14-13-2 · Sebring, FL · Accident · No injuries · Limited investigation · Final report · Jan 13, 1989 · N74473 · Substantial damage
  > Failure of the cam gear snap ring, which allowed the camshaft gear to become disconnected. Factors related to the accident were trees in the emergency landing area.

## 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 ('27024'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27024&year=1989

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