# NTSB investigations: Franklin 6A4165 series

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.

Page 1 of 9 · 438 cases

## Latest cases

- [NTSB WPR26LA183](https://openairdocs.org/ntsb/WPR26LA183.md): Stinson 108-3 · Quilcene, WA · Accident · No injuries · Class 3 · Limited · Preliminary report · May 12, 2026 · N588C · Substantial damage
  > On May 12, 2026, at about 1049 Pacific daylight time, a Stinson 108-3 airplane, N588C, was substantially damaged when it was involved in an accident near Quilcene, Washington. The pilot was uninjured. The airplane was operated as a Title 14 Code of Federal…
- [NTSB ERA26LA108](https://openairdocs.org/ntsb/ERA26LA108.md): Stinson 108-3 · Palmetto, FL · Accident · No injuries · Class 4 · Limited · Final report · Feb 6, 2026 · N528C · Substantial damage
  > The pilot's inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB CEN26LA087](https://openairdocs.org/ntsb/CEN26LA087.md): Stinson 108-3 · Gypsum, CO · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Jan 11, 2026 · N6725M · Substantial damage
  > On January 11, 2026, at 1408 mountain standard time, a Stinson 108-3 airplane, N6725M, sustained substantial damage when it was involved in an accident near Gypsum, Colorado. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of…
- [NTSB ANC25LA058](https://openairdocs.org/ntsb/ANC25LA058.md): Stinson 108-8 · Alexander Creek, AK · Accident · No injuries · Class 4 · Limited · Final report · Jun 25, 2025 · N97438 · Substantial damage
  > The pilot’s failure to maintain airplane control during final approach. Contributing to the accident was the airplane’s encounter with a downdraft that led to a rapid loss of altitude.
- [NTSB WPR25LA179](https://openairdocs.org/ntsb/WPR25LA179.md): Stinson 108-2 · East Wenatchee, WA · Accident · No injuries · Class 4 · Limited · Final report · Jun 13, 2025 · N9550K · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll with a left crosswind.
- [NTSB ANC25LA036](https://openairdocs.org/ntsb/ANC25LA036.md): Stinson 108 · North Pole, AK · Accident · Minor injuries · Class 4 · Limited · Final report · Apr 25, 2025 · N9308K · Substantial damage
  > The pilot's failure to maintain obstacle clearance which resulted in an in-flight collision with a tree. Contributing to the accident was his impairment from the effects of alcohol consumption.
- [NTSB ANC24LA048](https://openairdocs.org/ntsb/ANC24LA048.md): Stinson 108-2 · Bethel, AK · Accident · No injuries · Class 4 · Limited · Final report · Jun 1, 2024 · N299C · Substantial damage
  > The uncertificated pilot’s decision to fly an unairworthy airplane and his failure to maintain directional control during landing, which resulted in a landing gear collapse. Contributing was the failure of the right main landing gear oleo strut.
- [NTSB ERA24LA210](https://openairdocs.org/ntsb/ERA24LA210.md): Stinson 108-2 · Titusville, FL · Accident · No injuries · Class 4 · Limited · Final report · May 6, 2024 · N2721L · Substantial damage
  > The pilot’s failure to maintain directional control while landing in variable wind conditions, which resulted in runway excursion and collision with an approach light.
- [NTSB ERA24LA052](https://openairdocs.org/ntsb/ERA24LA052.md): Stinson 108-2 · Martinsville, VA · Accident · No injuries · Class 4 · Limited · Final report · Nov 30, 2023 · N9564K · Substantial damage
  > The pilot’s failure to maintain directional control during a wheel landing in crosswind conditions and the flight instructor’s delayed remedial action, which resulted in a ground loop on the runway.
- [NTSB WPR23LA117](https://openairdocs.org/ntsb/WPR23LA117.md): Stinson 108 · Lampasas, TX · Accident · No injuries · Class 3 · Limited · Final report · Mar 4, 2023 · N6532M · Substantial damage
  > Improper case hardening of the crankshaft timing gear, which resulted in the fatigue failure of the gear and a total loss of engine power.
- [NTSB ERA22LA333](https://openairdocs.org/ntsb/ERA22LA333.md): Stinson 108 · Batesburg, SC · Accident · No injuries · Class 3 · Limited · Final report · Jul 23, 2022 · N6020M · Substantial damage
  > The fatigue failure of the crankshaft gear, resulting in a total loss of engine power.
- [NTSB WPR22LA085](https://openairdocs.org/ntsb/WPR22LA085.md): Universal Stinson 108-2 · Byron, CA · Accident · No injuries · Class 4 · Limited · Final report · Jan 27, 2022 · N9433K · Substantial damage
  > The pilot’s inadequate flare and loss of directional control during landing which resulted in a runway excursion. Contributing to the accident was the instructor’s delayed remedial action.
- [NTSB ANC21LA086](https://openairdocs.org/ntsb/ANC21LA086.md): Stinson 108-3 · Port Alsworth, AK · Accident · No injuries · Class 3 · Limited · Final report · Sep 12, 2021 · N6476M · Substantial damage
  > A loss of directional control for reasons that could not be determined based on the available information.
- [NTSB WPR21LA251](https://openairdocs.org/ntsb/WPR21LA251.md): Stinson 108-3 · Stevenson, WA · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 27, 2021 · N6548M · Destroyed
  > A runway incursion, which resulted in a go-around, and subsequent forced landing when the airplane was not able to climb at a rate sufficient to clear approaching rising terrain.
- [NTSB WPR21LA064](https://openairdocs.org/ntsb/WPR21LA064.md): Stinson 108-3 · El Monte, CA · Accident · No injuries · Class 3 · Limited · Final report · Nov 3, 2020 · N6855M · Substantial damage
  > A loss of directional control during the landing roll due to an undetermined failure of the tailwheel assembly.
- [NTSB ERA20LA320](https://openairdocs.org/ntsb/ERA20LA320.md): Stinson 108 · Newport, PA · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 17, 2020 · N336C · Substantial damage
  > A total loss of engine power during cruise flight due to a disconnected carburetor mixture control cable which allowed the carburetor mixture lever to migrate to the cut-off position during flight.
- [NTSB CEN20LA377](https://openairdocs.org/ntsb/CEN20LA377.md): Stinson 108-3 · Coleman, MI · Accident · No injuries · Class 3 · Limited · Final report · Sep 1, 2020 · N909C · Substantial damage
  > The pilot’s improper installation of the generator drive gear, which resulted in a total loss of engine power.
- [NTSB CEN20LA345](https://openairdocs.org/ntsb/CEN20LA345.md): Stinson 108 · Glenwood Springs, CO · Accident · No injuries · Class 3 · Limited · Final report · Aug 12, 2020 · N9726K · Substantial damage
  > The pilot’s loss of directional control upon landing due to a sheared tailwheel locking pin.
- [NTSB WPR20CA236](https://openairdocs.org/ntsb/WPR20CA236.md): Stinson 108 · Farewell Lakes, AK · Accident · No injuries · Class 4 · Data collection · Final report · Jul 8, 2020 · N134C · Substantial damage
  > The pilot's delayed decision to abort the takeoff roll, which resulted in a runway overrun and airplane nose over.
- [NTSB ANC20CA063](https://openairdocs.org/ntsb/ANC20CA063.md): Stinson 108 · Nikolai, AK · Accident · No injuries · Class 4 · Data collection · Final report · Jul 2, 2020 · N6252M · Substantial damage
  > The pilot's improper decision to depart from an unsuitable off-airport surface which resulted in a departure area excursion and impact with trees.
- [NTSB CEN20CA204](https://openairdocs.org/ntsb/CEN20CA204.md): Stinson 108 · Denver, CO · Accident · No injuries · Class 4 · Data collection · Final report · Jun 1, 2020 · N6518M · Substantial damage
  > The pilot’s failure to maintain directional control while landing during variable wind conditions.
- [NTSB ANC19TA055](https://openairdocs.org/ntsb/ANC19TA055.md): Stinson 108 · Tyonek, AK · Accident · Serious injuries · Class 4 · Final report · Sep 26, 2019 · N6533M · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack during a short field takeoff, which resulted in an aerodynamic stall and loss of control.
- [NTSB CEN19LA222](https://openairdocs.org/ntsb/CEN19LA222.md): Stinson 108 · Clinton, AR · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 13, 2019 · N9651K · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB WPR19LA207](https://openairdocs.org/ntsb/WPR19LA207.md): Stinson 108 · Klamath Falls, OR · Accident · No injuries · Class 3 · Limited · Final report · Jul 9, 2019 · N6642M · Substantial damage
  > The mechanic’s failure to identify an engine performance issue, which led to a partial loss of engine power. Contributing to the accident was the pilot’s decision to operate the airplane with a known mechanical deficiency.
- [NTSB WPR19LA179](https://openairdocs.org/ntsb/WPR19LA179.md): Stinson 108 · Caldwell, ID · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 27, 2019 · N6116M · Substantial damage
  > A total loss of engine power during approach due to a failed piston. The reason for the piston failure could not be determined based on the available information.
- [NTSB GAA19CA263](https://openairdocs.org/ntsb/GAA19CA263.md): Stinson 108 · Soldotna, AK · Accident · No injuries · Data collection · Final report · May 12, 2019 · N6392M · Substantial damage
  > The pilot's overapplication of the brakes during landing on a soft runway, which resulted in a nose-over.
- [NTSB ERA18LA242](https://openairdocs.org/ntsb/ERA18LA242.md): Stinson 108 · Indiana, PA · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 2, 2018 · N4059C · Substantial damage
  > A total loss of engine power as a result of debris contamination of the fuel, which resulted in fuel starvation.
- [NTSB GAA18CA237](https://openairdocs.org/ntsb/GAA18CA237.md): Stinson 108 · Eliza Island, WA · Accident · Minor injuries · Data collection · Final report · Apr 27, 2018 · N6933M · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall.
- [NTSB GAA18CA156](https://openairdocs.org/ntsb/GAA18CA156.md): Stinson 108 · Cedar Rapids, IA · Accident · No injuries · Data collection · Final report · Mar 11, 2018 · N9457K · Substantial damage
  > The pilot’s improper landing flare, which resulted in a loss of directional control and a nose-over.
- [NTSB GAA18CA028](https://openairdocs.org/ntsb/GAA18CA028.md): Stinson 108 · Lewiston, ID · Accident · No injuries · Data collection · Final report · Oct 26, 2017 · N927D · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll. Contributing to the accident was the pilot’s failure to obtain appropriate training in the airplane before flying solo.
- [NTSB ERA17LA182](https://openairdocs.org/ntsb/ERA17LA182.md): Stinson 108 · West Creek, NJ · Accident · Minor injuries · Limited investigation · Final report · May 17, 2017 · N9366K · Substantial damage
  > A total loss of engine power due to the No. 4 cylinder’s exhaust valve getting stuck and the subsequent fracturing of the valve face stem.
- [NTSB GAA17CA224](https://openairdocs.org/ntsb/GAA17CA224.md): Stinson 108 · Woodruff, WI · Accident · No injuries · Data collection · Final report · Apr 7, 2017 · N9363K · Substantial damage
  > The pilot receiving instruction's incorrect brake usage and failure to maintain directional control during the landing roll.
- [NTSB GAA17CA153](https://openairdocs.org/ntsb/GAA17CA153.md): Stinson 108 · Valparaiso, IN · Accident · No injuries · Data collection · Final report · Feb 20, 2017 · N9277K · Substantial damage
  > The pilot’s failure to maintain directional control while landing with a crosswind.
- [NTSB CEN17LA057](https://openairdocs.org/ntsb/CEN17LA057.md): Stinson 108-3 · Ionia, MI · Accident · No injuries · Limited investigation · Final report · Dec 16, 2016 · N812C · Substantial damage
  > A failure of the aft support cable on the left main landing ski due to an inadequately formed nicopress sleeve, which allowed the ski to rotate into a vertical position shortly after liftoff, and its unavoidable separation during the subsequent landing.
- [NTSB GAA17CA015](https://openairdocs.org/ntsb/GAA17CA015.md): Stinson 108 · Rifle, CO · Accident · No injuries · Data collection · Final report · Oct 6, 2016 · N4210C · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion.
- [NTSB GAA16CA424](https://openairdocs.org/ntsb/GAA16CA424.md): Stinson 108 · Sunriver, OR · Accident · No injuries · Data collection · Final report · Aug 5, 2016 · N9250K · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in gusting wind conditions, which resulted in runway excursion and nose-over.
- [NTSB CEN16LA287](https://openairdocs.org/ntsb/CEN16LA287.md): Stinson 108 · Dodge Center, MN · Accident · Minor injuries · Limited investigation · Final report · Jul 22, 2016 · N8019K · Substantial damage
  > A partial loss of engine power due to carburetor ice.
- [NTSB GAA16CA369](https://openairdocs.org/ntsb/GAA16CA369.md): Stinson 108 · Red Lodge, MT · Accident · No injuries · Data collection · Final report · Jul 8, 2016 · N955C · Substantial damage
  > A deer running across the runway and impacting the left side of the airplane, resulting in a loss of directional control, a runway excursion, and a ground loop.
- [NTSB GAA16CA221](https://openairdocs.org/ntsb/GAA16CA221.md): Stinson 108 · Batavia, OH · Accident · No injuries · Data collection · Final report · May 6, 2016 · N8068K · Substantial damage
  > The pilot's failure to maintain directional control during landing, which resulted in a runway excursion. Contributing to the accident was the pilot's incorrect brake application during the runway excursion, which resulted in a nose over.
- [NTSB WPR16CA077](https://openairdocs.org/ntsb/WPR16CA077.md): Stinson 108 3 · Livermore, CA · Accident · No injuries · Data collection · Final report · Feb 25, 2016 · N862C · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll. Contributing to the accident was maintenance personnel's failure to detect the worn tailwheel assembly during the airplane's annual inspection.
- [NTSB GAA15LA265](https://openairdocs.org/ntsb/GAA15LA265.md): Stinson 108 · Palmer, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 20, 2015 · N6066M · Substantial damage
  > The pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during final approach to landing, which resulted in an aerodynamic stall and impact with terrain.
- [NTSB WPR15LA223](https://openairdocs.org/ntsb/WPR15LA223.md): Stinson 108 - 3 · North Las Vegas, NV · Accident · No injuries · Limited investigation · Final report · Jul 25, 2015 · N6152M · Substantial damage
  > The partial loss of engine power due to a degraded cylinder exhaust valve seal, which resulted in low cylinder compression.
- [NTSB CEN14CA183](https://openairdocs.org/ntsb/CEN14CA183.md): Stinson 108 · Broomfield, CO · Accident · No injuries · Data collection · Final report · Mar 14, 2014 · N9538K · Substantial damage
  > The pilot's failure to maintain directional control during the landing, which resulted in the airplane departing the runway and nosing over.
- [NTSB WPR13LA320](https://openairdocs.org/ntsb/WPR13LA320.md): Stinson 108-3 · Blackfoot, ID · Accident · No injuries · Limited investigation · Final report · Jul 10, 2013 · N703C · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN13LA305](https://openairdocs.org/ntsb/CEN13LA305.md): Stinson 108-3 · Beaumont, TX · Accident · Minor injuries · Limited investigation · Final report · May 23, 2013 · N121CM · Substantial damage
  > The lack of a forward clamp on the carburetor heat box rubber boot, which allowed the boot to be ingested into the inlet of the carburetor heat box, restricting the airflow and leading to a subsequent partial loss of engine power.
- [NTSB CEN13LA091](https://openairdocs.org/ntsb/CEN13LA091.md): Stinson 108-2 · Halfway, MO · Accident · Minor injuries · Limited investigation · Final report · Dec 5, 2012 · N8775K · Substantial damage
  > The pilot's failure to properly maintain the airplane and engine, which resulted in a total loss of engine power due to improperly installed magnetos and a broken camshaft.
- [NTSB WPR12LA283](https://openairdocs.org/ntsb/WPR12LA283.md): Stinson 108 · Stanley, ID · Accident · Serious injuries · Limited investigation · Final report · Jun 30, 2012 · N773C · Substantial damage
  > The pilot’s inadequate preflight planning and decision to takeoff at a density altitude outside of the airplane’s takeoff performance envelope, with a tailwind, and near the airplane’s maximum gross weight, which resulted in the airplane’s inability to climb…
- [NTSB WPR12CA291](https://openairdocs.org/ntsb/WPR12CA291.md): Stinson 108-2 · Mile Hi Landing Strip, ID · Accident · No injuries · Data collection · Final report · Jun 25, 2012 · N247C · Substantial damage
  > The pilot's misjudgment of the speed and distance required to land, which resulted in a runway overrun.
- [NTSB WPR12CA129](https://openairdocs.org/ntsb/WPR12CA129.md): Stinson 108-3 · Santa Clarita, CA · Accident · Minor injuries · Data collection · Final report · Mar 12, 2012 · N4143C · Substantial damage
  > The pilot's delayed decision to abandon the landing attempt, which resulted in the airplane colliding with rising terrain. Contributing to the accident was the pilot's decision to land with a tailwind.
- [NTSB ERA12CA064](https://openairdocs.org/ntsb/ERA12CA064.md): Stinson 108-3 · Whitefield, NH · Accident · No injuries · Data collection · Final report · Nov 5, 2011 · N6263M · Substantial damage
  > The student pilot did not maintain directional control during the landing flare.

Next page: https://openairdocs.org/ntsb.md?engine=27025&page=2

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27025'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27025

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