# NTSB investigations, 1994: 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 LAX95LA058](https://openairdocs.org/ntsb/LAX95LA058.md): Render LONG-EZ · Kailua-Kona, HI · Accident · Minor injuries · Limited investigation · Final report · Dec 21, 1994 · N3250K · Destroyed
  > a delamination of the wooden propeller.
- [NTSB FTW95LA040](https://openairdocs.org/ntsb/FTW95LA040.md): Fighter Escort Wings P-51D · Seymour, TX · Accident · No injuries · Limited investigation · Final report · Nov 10, 1994 · N51K · Substantial damage
  > The failure of the propeller speed unit. A factor was the lack of suitable terrain 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.
- [NTSB CHI94FA340](https://openairdocs.org/ntsb/CHI94FA340.md): Beech E95A · Poplar Grove, IL · Accident · 1 fatal · Field investigation · Final report · Sep 20, 1994 · N9581Y · Destroyed
  > Aircraft control not maintained by the pilot when he began his turn from base leg to final approach. Factors associated with this accident were the fatigue failure of a propeller blade, improper maintenance overhaul of the propeller, and a material defect in…
- [NTSB LAX94LA361](https://openairdocs.org/ntsb/LAX94LA361.md): North American P-51D · Reno, NV · Accident · 1 fatal · Limited investigation · Final report · Sep 12, 1994 · N51U · Destroyed
  > the pilot's failure to maintain aircraft control during an attempted forced landing. Factors in the accident were the failure of a propeller blade-feathering oil seal which leaked oil on the windshield, obscuring the pilot's vision.
- [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 year(c."eventDate") = 1994
  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&year=1994

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