# NTSB investigations, AZ: 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 LAX03LA063](https://openairdocs.org/ntsb/LAX03LA063.md): Davis YAK-3 UR-2000 · Parker, AZ · Accident · Serious injuries · Limited investigation · Final report · Jan 10, 2003 · N498SD · Substantial damage
  > failure of the propeller shaft extension mechanism resulting in a loss of power, and the pilot's failure to attain the proper touchdown point.
- [NTSB LAX02LA104](https://openairdocs.org/ntsb/LAX02LA104.md): Cessna 172L · Bullhead City, AZ · Accident · No injuries · Limited investigation · Final report · Mar 7, 2002 · N7774G · Substantial damage
  > The pilot's failure to comply with maintenance/inspection requirements that resulted in a propeller failure.
- [NTSB LAX98LA033](https://openairdocs.org/ntsb/LAX98LA033.md): Waco YMF-5 · Sedona, AZ · Accident · Serious injuries · Limited investigation · Final report · Nov 8, 1997 · N369DP · Destroyed
  > The failure and separation of the propeller for undetermined reasons.
- [NTSB LAX97LA084](https://openairdocs.org/ntsb/LAX97LA084.md): Beech N35 · Holbrook, AZ · Accident · No injuries · Limited investigation · Final report · Jan 9, 1997 · N7HB · Substantial damage
  > fatigue failure of the propeller hub, which resulted in separation of the propeller assembly and reduction of aircraft control. Also causal was: the resultant lack of compliance with Airworthiness Directive (AD) 89-26-08, due to ambiguous and unclear wording…
- [NTSB LAX95LA314](https://openairdocs.org/ntsb/LAX95LA314.md): Piper PA-23-250 · Marana, AZ · Accident · 1 fatal · Limited investigation · Final report · Aug 30, 1995 · N7156T · Destroyed
  > the pilot's poor installation of the propeller which allowed the propeller to become loose, and the pilot's improper emergency procedure by feathering the wrong 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" = 'AZ' 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=AZ

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