# NTSB investigations: Franklin 6A4150 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 ANC25LA052](https://openairdocs.org/ntsb/ANC25LA052.md): Stinson 108 · Cantwell, AK · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Jun 14, 2025 · N2101Q · Substantial damage
  > On June 14, 2025, about 1415 Alaska daylight time, a Stinson 108 airplane, N2101Q, was substantially damaged when it was involved in an accident near Cantwell, Alaska. The pilot and passenger sustained minor injuries. The airplane was operated as a Title 14…
- [NTSB ANC24LA020](https://openairdocs.org/ntsb/ANC24LA020.md): Stinson 108 · Houston, AK · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 15, 2024 · N9041K · Substantial damage
  > A total loss of engine power due to fuel starvation and the pilot's mismanagement of the available fuel.
- [NTSB ANC23LA051](https://openairdocs.org/ntsb/ANC23LA051.md): Stinson 108 · Ninilchik, AK · Accident · No injuries · Class 3 · Limited · Final report · Jul 13, 2023 · N97719 · Substantial damage
  > A partial loss of engine power due to failure of the No. 1 cylinder intake valve head.
- [NTSB ANC21LA068](https://openairdocs.org/ntsb/ANC21LA068.md): Stinson 108-1 · Sterling, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 2, 2021 · N8656K · Substantial damage
  > Insufficient available power as a result of low compression in three engine cylinders. Contributing to the accident was the pilot’s decision to takeoff with a slight quartering tailwind.
- [NTSB ANC12CA104](https://openairdocs.org/ntsb/ANC12CA104.md): Stinson 108-2 · Nikiski, AK · Accident · No injuries · Data collection · Final report · Sep 9, 2012 · N9723K · Substantial damage
  > The pilot's selection of an unsuitable landing surface, which resulted in a loss of control during the landing roll.
- [NTSB ANC10CA051](https://openairdocs.org/ntsb/ANC10CA051.md): Stinson 108-1 · Galena, AK · Accident · No injuries · Data collection · Final report · Jun 8, 2010 · N136SP · Substantial damage
  > The pilot's failure to maintain directional control during takeoff, resulting in a ground-loop, and collapse of the right main landing gear.
- [NTSB ANC10CA010](https://openairdocs.org/ntsb/ANC10CA010.md): Stinson 108-1 · Selawik, AK · Accident · No injuries · Data collection · Final report · Dec 18, 2009 · N136SP · Substantial damage
  > The pilot's failure to maintain a proper descent rate during landing, resulting in a hard landing.
- [NTSB ANC03LA028](https://openairdocs.org/ntsb/ANC03LA028.md): Stinson 108-1 · Sitka, AK · Accident · No injuries · Limited investigation · Final report · Feb 11, 2003 · N71X · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during the landing roll, which resulted in an inadvertent ground loop, and the collapse of the right main landing gear.
- [NTSB ANC98LA117](https://openairdocs.org/ntsb/ANC98LA117.md): Stinson 108-1 · Delta Junction, AK · Accident · No injuries · Limited investigation · Final report · Aug 5, 1998 · N8835K · Substantial damage
  > The pilot's selection of an unsuitable takeoff area. Factors associated with the accident were willow trees, and rising terrain.
- [NTSB ANC97LA122](https://openairdocs.org/ntsb/ANC97LA122.md): Stinson 108 · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Aug 14, 1997 · N97959 · Substantial damage
  > The pilot's inadequate compensation for wind conditions. A factor was the crosswind.
- [NTSB ANC94LA108](https://openairdocs.org/ntsb/ANC94LA108.md): Stinson 108 · Salcha, AK · Accident · No injuries · Limited investigation · Final report · Aug 4, 1994 · N97294 · Substantial damage
  > The pilot did not maintain control of the airplane. A factor in the accident was the pilot's lack of total experience in the specific make/model/type of aircraft.
- [NTSB ANC92LA059](https://openairdocs.org/ntsb/ANC92LA059.md): Stinson 108-1 · Mccarthy, AK · Accident · No injuries · Limited investigation · Final report · Apr 8, 1992 · N97421 · Substantial damage
  > The pilot's failure to maintain directional control of the airplane. Contributing to the accident were the snow berm and the pilot's lack of total experience in the type of operation (ski equipped airplanes).
- [NTSB ANC90LA140](https://openairdocs.org/ntsb/ANC90LA140.md): Stinson 108-1 · Fareweel, AK · Accident · No injuries · Limited investigation · Final report · Aug 9, 1990 · N8708K · Substantial damage
  > The pilot's decision to takeoff downwind.
- [NTSB ANC88LA126](https://openairdocs.org/ntsb/ANC88LA126.md): Stinson 108 · Mt Spur, AK · Accident · No injuries · Limited investigation · Final report · Sep 5, 1988 · N97326 · Substantial damage
  > At 1500 feet m.s.l. a complete engine failure occurred. An emergency landing was made on a gravel bar. During the rollout the airplane collided with a gravel bank. An on site examination of the engine revealed a hole in the case next to the left exhaust…
- [NTSB ANC84LA015](https://openairdocs.org/ntsb/ANC84LA015.md): Stinson 108 · Skwentna, AK · Accident · No injuries · Limited investigation · Final report · Nov 10, 1983 · N97155 · Substantial damage
  > After takeoff the eng lost 50% of its power & a forced landing was made in trees. The plt believed the eng failure was due to water/ice in fuel.
- [NTSB ANC83LA117](https://openairdocs.org/ntsb/ANC83LA117.md): Stinson 108-1 · Nenana, AK · Accident · No injuries · Limited investigation · Final report · Jun 29, 1983 · N8205K · Substantial damage
  > The acft nose gear failed during a forced landing after the engine lost power during climbout. The plt rptd the engine began to run intermittently then quit completely. The acft had just been serviced with 36 gallons of 80/87 octane fuel. The student pilot…
- [NTSB ANC83LA002](https://openairdocs.org/ntsb/ANC83LA002.md): Rockwell International Stinson 108 · Near Sparrevohn, AK · Accident · No injuries · Limited investigation · Final report · Oct 2, 1982 · N97451 · Substantial damage
  > The pilot stated that after shooting a moose in the morning, quartering the animal and carrying the meat to the an unimproved landing/takeoff area he walked back to his cabin for his aircraft. Upon his return, he landed and loaded 2 quarters into the back…
- [NTSB ANC82DAG29](https://openairdocs.org/ntsb/ANC82DAG29.md): Stinson 181 · Talkeetna, AK · Accident · Serious injuries · Final report · May 31, 1982 · N108TM · Substantial damage
  > The pilot made a forced landing after a spark plug blew out of the engine. During the landing the aircraft collided with a tree.
- [NTSB ANC77DAH01](https://openairdocs.org/ntsb/ANC77DAH01.md): Stinson 108 · Anchorage, AK · Accident · Serious injuries · Closed · Aug 20, 1977 · N97426 · Substantial damage
- [NTSB ANC77DAG43](https://openairdocs.org/ntsb/ANC77DAG43.md): Stinson 108-1 · Twin Lakes, AK · Accident · No injuries · Closed · Mar 18, 1977 · N8578K · Substantial damage
- [NTSB ANC77DAG27](https://openairdocs.org/ntsb/ANC77DAG27.md): Stinson 108-1 · Kenai, AK · Accident · Minor injuries · Closed · Jan 29, 1977 · N97884 · Substantial damage
- [NTSB ANC76DAA34](https://openairdocs.org/ntsb/ANC76DAA34.md): Stinson 108-2 · Fairbanks, AK · Accident · No injuries · Closed · Apr 18, 1976 · N904D · Substantial damage
- [NTSB ANC76AAG71](https://openairdocs.org/ntsb/ANC76AAG71.md): Stinson 108 · Port Alsworth, AK · Accident · Minor injuries · Closed · Nov 12, 1975 · N97677 · Substantial damage
- [NTSB ANC75DAG74](https://openairdocs.org/ntsb/ANC75DAG74.md): Stinson 108-1 · Iliamna, AK · Accident · No injuries · Closed · Mar 13, 1975 · N9109K · Substantial damage
- [NTSB ANC75DAG69](https://openairdocs.org/ntsb/ANC75DAG69.md): Stinson 108-1 · Talkeetna, AK · Accident · No injuries · Closed · Feb 9, 1975 · N8578K · Substantial damage
- [NTSB ANC75DAG06](https://openairdocs.org/ntsb/ANC75DAG06.md): Stinson 108-2 · Anchorage, AK · Accident · No injuries · Closed · Jul 28, 1974 · N97612 · Substantial damage
- [NTSB ANC74FAG99](https://openairdocs.org/ntsb/ANC74FAG99.md): Stinson 108-1 · Cantwell, AK · Accident · No injuries · Closed · Apr 15, 1974 · N8489K · Substantial damage
- [NTSB ANC74DAG88](https://openairdocs.org/ntsb/ANC74DAG88.md): Stinson 108 · Soldotna, AK · Accident · No injuries · Closed · Jan 31, 1974 · N97326 · Substantial damage
- [NTSB ANC74DAG45](https://openairdocs.org/ntsb/ANC74DAG45.md): Stinson 108 · Aniak, AK · Accident · No injuries · Closed · Sep 9, 1973 · N97942 · Substantial damage
- [NTSB ANC73DAA04](https://openairdocs.org/ntsb/ANC73DAA04.md): Stinson 108-2 · Mt Mckinley, AK · Accident · No injuries · Closed · Jul 24, 1972 · N904D · Substantial damage
- [NTSB ANC72DAG67](https://openairdocs.org/ntsb/ANC72DAG67.md): Stinson 108 · Anchorage, AK · Accident · No injuries · Closed · Oct 20, 1971 · N44BS · Substantial damage
- [NTSB ANC71DAG53](https://openairdocs.org/ntsb/ANC71DAG53.md): Stinson 108-1 · Egegik, AK · Accident · No injuries · Closed · Nov 28, 1970 · N8638K · Substantial damage
- [NTSB ANC70D0073](https://openairdocs.org/ntsb/ANC70D0073.md): Stinson 108-1 · Delta Junctn, AK · Accident · No injuries · Closed · Sep 25, 1969 · N9010K · Substantial damage
- [NTSB ANC69D0064](https://openairdocs.org/ntsb/ANC69D0064.md): Stinson 108-1 · Fairbanks, AK · Accident · No injuries · Closed · Oct 12, 1968 · N8724K · 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 ('27024'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27024&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.