# NTSB investigations, CA: 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 LAX07LA078](https://openairdocs.org/ntsb/LAX07LA078.md): Republic RC-3 · Julian, CA · Accident · No injuries · Limited investigation · Final report · Feb 2, 2007 · N6248K · Substantial damage
  > The failure of the propeller to crankshaft attachment bolts due to fatigue. A contributing factor was the improper installation of the propeller assembly by maintenance personnel.
- [NTSB LAX03LA130](https://openairdocs.org/ntsb/LAX03LA130.md): Piper PA-28-181 · Baker, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 6, 2003 · N8465R · Substantial damage
  > the separation of a propeller blade tip due to fatigue cracking that resulted from improper maintenance repair procedures.
- [NTSB LAX03LA110](https://openairdocs.org/ntsb/LAX03LA110.md): Kolb Firestar · San Diego, CA · Accident · No injuries · Limited investigation · Final report · Mar 8, 2003 · N670JW · Substantial damage
  > propeller delamination due to the pilot's failure to properly secure the rear seat shoulder harness prior to flight. A contributing factor was the soft ground in which the airplane landed.
- [NTSB LAX03FA074](https://openairdocs.org/ntsb/LAX03FA074.md): Beech 95 · Rancho Cucamong, CA · Accident · 1 fatal · Field investigation · Final report · Jan 25, 2003 · N2733Y · Destroyed
  > The fracture and separation of a propeller blade during cruise flight due to fatigue and corrosion pits in the blade pilot bore, and an improper overhaul of the separated propeller by repair station personnel. Factors contributing to the accident were the…
- [NTSB LAX97FA291](https://openairdocs.org/ntsb/LAX97FA291.md): Hefner Pitts S1S · Van Nuys, CA · Accident · 1 fatal · Field investigation · Final report · Aug 17, 1997 · N10HJ · Destroyed
  > the operation of the propeller beyond the design rpm limitations and the resultant gyroscopic loads from aerobatics. Contributing to the accident was the lack of a required instrument panel rpm restriction for the propeller mandated by an airworthiness…
- [NTSB LAX96LA142](https://openairdocs.org/ntsb/LAX96LA142.md): Taylorcraft DC-65 · Fremont, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 23, 1996 · N36354 · Substantial damage
  > the in-flight separation of a portion of one wooden propeller blade due to undetected dry rot in the wood fibers.
- [NTSB LAX96FA049](https://openairdocs.org/ntsb/LAX96FA049.md): Beech S35 · Oxnard, CA · Accident · 1 fatal · Field investigation · Final report · Nov 19, 1995 · N5795K · Destroyed
  > failure of the pilot to maintain adequate airspeed during a missed approach, after encountering an undetermined propeller malfunction, which resulted in a stall and collision with the terrain. Factors relating to the accident were: darkness, fog, and the…
- [NTSB LAX94LA259](https://openairdocs.org/ntsb/LAX94LA259.md): Mascari Discovery S-12 · Salinas, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 18, 1994 · N999 · Destroyed
  > The failure of the muffler assembly due to preexisting cracking in the oxidized area of the weld, with subsequent damage and separation of the propeller and reduction gear box. A related factor was the excessive taxispeed which resulted in the airplane…

## 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 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=CA

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