# NTSB investigations, OK: Propeller failure/malfunction

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 FTW00LA197](https://openairdocs.org/ntsb/FTW00LA197.md): Bushby Midget Mustang · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Jul 1, 2000 · N6402G · Substantial damage
  > The in-flight separation of the propeller spinner. A factor was the lack of suitable terrain for the precautionary landing.
- [NTSB FTW99LA271](https://openairdocs.org/ntsb/FTW99LA271.md): Stinson L-5 · Woodward, OK · Accident · No injuries · Limited investigation · Final report · Sep 29, 1999 · N68591 · Substantial damage
  > The in-flight separation of the tip of a wood propeller blade. Contributing factors were the soft terrain and ditch encountered during the precautionary landing.
- [NTSB FTW99FA132](https://openairdocs.org/ntsb/FTW99FA132.md): Grumman American AA-5B · Claremore, OK · Accident · No injuries · Field investigation · Final report · May 8, 1999 · N4546J · Substantial damage
  > The fatigue fracture of the propeller bolts resulting from the improper installation of the propeller assembly.
- [NTSB FTW96LA318](https://openairdocs.org/ntsb/FTW96LA318.md): Steward Breezy · Owasso, OK · Accident · Minor injuries · Limited investigation · Final report · Jul 25, 1996 · N2343 · Substantial damage
  > the pilot's failure to secure his cargo prior to departure. A factor was the lack of suitable terrain available for the forced landing.
- [NTSB FTW95FA001](https://openairdocs.org/ntsb/FTW95FA001.md): Mcmurtrie Jurca MJ-10 · Bartlesville, OK · Accident · 1 fatal · Field investigation · Final report · Oct 1, 1994 · N379SF · Destroyed
  > An inadvertent pilot-induced stall at too low an altitude to effect a safe recovery. Factors were the malfunctioning propeller system and the uncommanded feathering of the propeller.

## 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" = 'OK' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 131)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=131&state=OK

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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.