# NTSB investigations: Franklin 6V 350 series, AK

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 GAA16CA141](https://openairdocs.org/ntsb/GAA16CA141.md): Maule M 4 · Anchorage, AK · Accident · No injuries · Data collection · Final report · Feb 13, 2016 · N2032U · Substantial damage
  > The inadvertent rudder input by the passenger, resulting in a runway excursion during takeoff and collision with a taxiway sign.
- [NTSB ANC09CA044](https://openairdocs.org/ntsb/ANC09CA044.md): Maule M-4-220C · Nenana, AK · Accident · No injuries · Data collection · Final report · May 17, 2009 · N2031U · Substantial damage
  > The pilot's failure to maintain directional control while landing, resulting in a ground loop and substantial damage to the airplane.
- [NTSB ANC08LA003](https://openairdocs.org/ntsb/ANC08LA003.md): Maule M-5-220C · Aniak, AK · Accident · No injuries · Limited investigation · Final report · Oct 8, 2007 · N62029 · Substantial damage
  > The pilot's improper fuel tank selection and fuel starvation, while doing touch-and-go landings.
- [NTSB ANC01FA095](https://openairdocs.org/ntsb/ANC01FA095.md): Cessna 172 · Eagle River, AK · Accident · Serious injuries · Field investigation · Final report · Aug 1, 2001 · N5312T · Substantial damage
  > The fatigue induced fracture of a connecting rod wrist pin, resulting in a complete loss of engine power.
- [NTSB ANC97LA142](https://openairdocs.org/ntsb/ANC97LA142.md): Maule ML-4-220C · Aniak, AK · Accident · No injuries · Limited investigation · Final report · Sep 4, 1997 · N2048U · Substantial damage
  > The inadvertent swerve during landing on calm water. A factor was the pilot's lack of certification in single engine seaplanes.
- [NTSB ANC91LA054](https://openairdocs.org/ntsb/ANC91LA054.md): Maule M-4-220C · Beluga, AK · Accident · No injuries · Limited investigation · Final report · May 2, 1991 · N40676 · Substantial damage
  > The engine failure due to undetermined causes. Contributing to the accident was the unsuitability of the available landing area.
- [NTSB ANC89LA110](https://openairdocs.org/ntsb/ANC89LA110.md): Maule M-4-2205 · Beluga, AK · Accident · Minor injuries · Limited investigation · Final report · Jun 30, 1989 · N40676 · Substantial damage
  > The pilot's failure to properly correct for a crosswind during landing which resulted in a loss of control.
- [NTSB SEA86LA164](https://openairdocs.org/ntsb/SEA86LA164.md): Maule M-4-220C · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Jul 9, 1986 · N40646 · Substantial damage
  > The acft veered left and ground looped during landing roll. The right main gear strut collapsed during the landing. The plt had 5 hours total flt time in this acft and stated the toe brakes seemed 'touchy' during the landing.
- [NTSB ANC82FA037](https://openairdocs.org/ntsb/ANC82FA037.md): Maule M-4-220C · Homer, AK · Accident · 1 fatal · Field investigation · Final report · Apr 16, 1982 · N40343 · Destroyed
  > The pilot departed Homer airport on a special VFR clearance after being advised numerous times that VFR flight was not recommended. Shortly after takeoff (8 minutes) the aircraft dove out of the clouds and crashed near the airport. The pilot was not…
- [NTSB ANC79FAG11](https://openairdocs.org/ntsb/ANC79FAG11.md): Maule M-4 · Palmer, AK · Accident · No injuries · Closed · Oct 13, 1978 · N2048U · Substantial damage
- [NTSB ANC75DAG23](https://openairdocs.org/ntsb/ANC75DAG23.md): Maule M4220C · Dillingham, AK · Accident · No injuries · Closed · Aug 10, 1974 · N40319 · Substantial damage
- [NTSB ANC74DAG57](https://openairdocs.org/ntsb/ANC74DAG57.md): Maule M4220C · Bethel, AK · Accident · No injuries · Closed · Sep 23, 1973 · N40319 · Substantial damage
- [NTSB ANC72AA043](https://openairdocs.org/ntsb/ANC72AA043.md): Maule M4220C · Cordova, AK · Accident · 2 fatal · Closed · Apr 25, 1972 · N2043U · Destroyed
- [NTSB ANC72DAG81](https://openairdocs.org/ntsb/ANC72DAG81.md): Maule M-4 · Skwentna, AK · Accident · No injuries · Closed · Dec 5, 1971 · N2028U · Substantial damage
- [NTSB ANC69F0006](https://openairdocs.org/ntsb/ANC69F0006.md): Maule M-4 · Wasilla, AK · Accident · No injuries · Closed · Apr 15, 1968 · N9863M · Substantial damage

## 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" = 'AK' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27043'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27043&state=AK

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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.