# NTSB investigations: Continental IO-360 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.

Page 1 of 2 · 64 cases

## Latest cases

- [NTSB ANC26LA099](https://openairdocs.org/ntsb/ANC26LA099.md): Maule M-5-210C · Venetie, AK · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 31, 2026 · N420KB · Substantial damage
- [NTSB ANC25LA121](https://openairdocs.org/ntsb/ANC25LA121.md): Maule M-4-210C · Lime Village, AK · Accident · No injuries · Class 4 · Limited · Final report · Sep 18, 2025 · N4612T · Substantial damage
  > A collision with terrain during takeoff.
- [NTSB ANC24LA015](https://openairdocs.org/ntsb/ANC24LA015.md): Cessna R172K · Trapper Creek, AK · Accident · No injuries · Class 4 · Limited · Final report · Feb 17, 2024 · N1258V · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall; loss of airplane control; and impact with terrain.
- [NTSB ANC22LA065](https://openairdocs.org/ntsb/ANC22LA065.md): Cessna R172K · Fairbanks, AK · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 12, 2022 · N736KP · Substantial damage
  > The pilot’s failure to maintain control of the airplane during landing.
- [NTSB ANC22LA061](https://openairdocs.org/ntsb/ANC22LA061.md): Maule M-4-210 · Aniak, AK · Accident · No injuries · Class 4 · Limited · Final report · Jul 26, 2022 · N4743T · Substantial damage
  > The pilot’s selection of unsuitable terrain for landing which resulted in a nose-over.
- [NTSB GAA19CA305](https://openairdocs.org/ntsb/GAA19CA305.md): Maule M4 · Fairbanks, AK · Accident · No injuries · Data collection · Final report · May 31, 2019 · N9833M · Substantial damage
  > The pilot's failure to maintain the runway centerline during landing, which resulted in the airplane landing with the left wheel off the runway, an impact with trees, and a nose-over.
- [NTSB ANC17FA018](https://openairdocs.org/ntsb/ANC17FA018.md): Cessna R172K · Nome, AK · Accident · 1 fatal · Field investigation · Final report · Mar 6, 2017 · N736AS · Substantial damage
  > The pilot's improper decision to conduct multiple visual approaches to the destination airport despite the night instrument meteorological conditions; the airplane's low fuel state at that time, which resulted in a total loss of engine power due to fuel…
- [NTSB ANC13CA040](https://openairdocs.org/ntsb/ANC13CA040.md): Maule M-5-210C · Juneau, AK · Accident · No injuries · Data collection · Final report · May 6, 2013 · N378X · Substantial damage
  > The pilot's failure to maintain directional control during the takeoff roll, which resulted in a ground loop.
- [NTSB ANC12CA098](https://openairdocs.org/ntsb/ANC12CA098.md): Maule M-5-210C · Juneau, AK · Accident · No injuries · Data collection · Final report · Aug 31, 2012 · N378X · Substantial damage
  > The pilot's failure to maintain directional control of the tailwheel-equipped airplane during landing, resulting in a ground loop. Contributing to the accident was the flight instructor's failure to adequately monitor the landing.
- [NTSB ANC12CA089](https://openairdocs.org/ntsb/ANC12CA089.md): Maule M-5-210C · Coldfoot, AK · Accident · No injuries · Data collection · Final report · Aug 18, 2012 · N319X · Substantial damage
  > The pilot's delayed decision to turn around while flying through a narrow mountain pass, which resulted in a forced landing and impact with terrain.
- [NTSB ANC11CA085](https://openairdocs.org/ntsb/ANC11CA085.md): Maule M-5-210C · Tok, AK · Accident · No injuries · Data collection · Final report · Aug 24, 2011 · N62019 · Substantial damage
  > The pilot's failure to go-around soon enough to preclude the necessity of a forced landing due to the airplane's inability to outclimb ascending terrain.
- [NTSB ANC10LA081](https://openairdocs.org/ntsb/ANC10LA081.md): Stinson 108-2 · Port Alsworth, AK · Accident · No injuries · Limited investigation · Final report · Aug 29, 2010 · N9569K · Substantial damage
  > The overstress fracture and failure of a main landing gear wheel during landing, resulting in the right wing striking the ground.
- [NTSB ANC09CA029](https://openairdocs.org/ntsb/ANC09CA029.md): Maule M-4-210C · Chickaloon, AK · Accident · No injuries · Data collection · Final report · Apr 4, 2009 · N40684 · Substantial damage
  > The pilot's selection of an unsuitably rough and snow-covered landing area.
- [NTSB ANC08LA130](https://openairdocs.org/ntsb/ANC08LA130.md): Maule M-5-210C · Delta Junction, AK · Accident · No injuries · Limited investigation · Final report · Sep 27, 2008 · N289X · Substantial damage
  > A total loss of engine power during takeoff due to the non-certificated pilot's inadvertent selection of the mixture control instead of the carburetor heat and his lack of training/qualification.
- [NTSB ANC07LA108](https://openairdocs.org/ntsb/ANC07LA108.md): Cessna 172 · Bethel, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 28, 2007 · N758TG · Substantial damage
  > The pilot's failure to maintain clearance from trees while landing.
- [NTSB ANC05CA131](https://openairdocs.org/ntsb/ANC05CA131.md): Maule M-5-210C · Fairbanks, AK · Accident · No injuries · Data collection · Final report · Aug 29, 2005 · N51623 · Substantial damage
  > The pilot's inadequate compensation for wind conditions during the landing roll, which resulted in a loss of control and subsequent collapse of the main landing gear. Factors associated with the accident were a crosswind, and a steep drop-off.
- [NTSB ANC03FA061](https://openairdocs.org/ntsb/ANC03FA061.md): Cessna 172 · Skagway, AK · Accident · 2 fatal · Field investigation · Final report · Jun 25, 2003 · N736QK · Substantial damage
  > The pilot's continued visual flight into instrument meteorological conditions, which resulted in an in-flight collision with mountainous terrain. Factors associated with the accident were low ceilings, rain, and fog.
- [NTSB ANC00LA084](https://openairdocs.org/ntsb/ANC00LA084.md): Maule M-4-210C · Chickaloon, AK · Accident · No injuries · Limited investigation · Final report · Jul 9, 2000 · N9855M · Substantial damage
  > The pilot's failure to refuel the airplane prior to fuel exhaustion. A factor associated with the accident was rough/uneven terrain.
- [NTSB ANC00FA056](https://openairdocs.org/ntsb/ANC00FA056.md): Beech B24R · Anchorage, AK · Accident · No injuries · Field investigation · Final report · May 9, 2000 · N6951R · Substantial damage
  > A fatigue failure of the crankcase through bolt, the separation of number 3 cylinder assembly, and the inadequate maintenance/service of the airplane by company maintenance personnel.
- [NTSB ANC99LA091](https://openairdocs.org/ntsb/ANC99LA091.md): Cessna 337B · Seldovia, AK · Accident · Serious injuries · Limited investigation · Final report · Jul 11, 1999 · N5499S · Substantial damage
  > The pilot's inadequate preflight planning/preparation, and subsequent fuel exhaustion.
- [NTSB ANC97LA149](https://openairdocs.org/ntsb/ANC97LA149.md): Maule M4-210 · Bethel, AK · Accident · No injuries · Limited investigation · Final report · Sep 15, 1997 · N9804M · Substantial damage
  > The pilot's abrupt application of brakes during the landing roll.
- [NTSB ANC97LA033](https://openairdocs.org/ntsb/ANC97LA033.md): Cessna 337T · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Mar 9, 1997 · N922EJ · Substantial damage
  > a leaking landing gear actuator seal, which resulted in an inability of the landing gear to lock in the down position. Failure of the emergency gear extension handle was a related factor.
- [NTSB ANC96LA136](https://openairdocs.org/ntsb/ANC96LA136.md): Maule M-4 · Skwentna, AK · Accident · No injuries · Limited investigation · Final report · Sep 3, 1996 · N4726T · Substantial damage
  > The pilot's selection of an unsuitable landing site. A factor associated with the accident was the rough and uneven terrain.
- [NTSB ANC95LA135](https://openairdocs.org/ntsb/ANC95LA135.md): Cessna 172 · Cordova, AK · Accident · No injuries · Limited investigation · Final report · Aug 10, 1995 · N758PX · Substantial damage
  > The pilot's improper planning/decision and delayed decision to abort the takeoff.
- [NTSB ANC94LA076](https://openairdocs.org/ntsb/ANC94LA076.md): Maule M-4-210 · Northway, AK · Accident · No injuries · Limited investigation · Final report · Jul 7, 1994 · N9808M · Substantial damage
  > The failure of the left main landing gear attachment fittings as a result of the improper welds by the maintenance repair facility. Factors in the accident that precipitated the gear failure were the wind gusts, and the pilot not adequately compensating for…
- [NTSB ANC93LA109](https://openairdocs.org/ntsb/ANC93LA109.md): Maule M4 · Iliamna, AK · Accident · No injuries · Limited investigation · Final report · Jul 2, 1993 · N9872M · Substantial damage
  > The pilot in command's improper taxi speed. A factor in the accident was the rough water.
- [NTSB ANC93LA065](https://openairdocs.org/ntsb/ANC93LA065.md): Cessna 172K · Rohn Roadhouse, AK · Accident · No injuries · Limited investigation · Final report · May 17, 1993 · N736BY · Substantial damage
  > The pilot in command's inadequate compensation for the wind conditions and allowing the airspeed to go below stalling speed in the landing configuration.
- [NTSB ANC91LA154](https://openairdocs.org/ntsb/ANC91LA154.md): Maule M-5 · Purkeypile Mine, AK · Accident · No injuries · Limited investigation · Final report · Sep 25, 1991 · N51645 · Substantial damage
  > The pilot's improper touchdown point on the gravel bar. Contributing to the accident was the pilot's inattentiveness and the ditch in the gravel bar.
- [NTSB ANC90LA189](https://openairdocs.org/ntsb/ANC90LA189.md): Maule M-4-210C · 60 E Of Bethel, AK · Accident · 1 fatal · Limited investigation · Final report · Oct 1, 1990 · N51441 · Destroyed
  > Continued VFR flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain altitude and clearance above mountainous terrain. Factors related to the accident were: darkness, adverse terrain and weather conditions, the…
- [NTSB ANC90LA128](https://openairdocs.org/ntsb/ANC90LA128.md): Cessna 337 · Kustatan River, AK · Accident · No injuries · Limited investigation · Final report · Jul 31, 1990 · N2271X · Substantial damage
  > Pilot-in-command's failure to assure that the rear engine developed full takeoff power and to attain takeoff airspeed. Contributing factors were the terrain conditions.
- [NTSB ANC89LA181](https://openairdocs.org/ntsb/ANC89LA181.md): Cessna R172K · Anchorage, AK · Accident · 4 fatal · Limited investigation · Final report · Aug 12, 1989 · N1211V · Destroyed
  > Undetermined.
- [NTSB ANC88LA105](https://openairdocs.org/ntsb/ANC88LA105.md): Cessna 172 · Chignik, AK · Accident · No injuries · Limited investigation · Final report · Aug 6, 1988 · N2723V · Substantial damage
  > During the takeoff roll on the beach the pilot lost directional control of the aircraft. The aircraft nosed over on its back.
- [NTSB SEA87FA135](https://openairdocs.org/ntsb/SEA87FA135.md): Maule M-4-210C · Sitka, AK · Accident · 2 fatal · Field investigation · Final report · Jul 12, 1987 · N9812M · Destroyed
  > Plt was on local VFR flight plan. Witnesses observed acft flying at low level along beaches. Later, witness saw smoke rising from wooded terrain about two miles inland from nearest beach. Investigation revealed no evidence of inflight failure of malfunction…
- [NTSB ANC87LA046](https://openairdocs.org/ntsb/ANC87LA046.md): Cessna 170B · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Mar 8, 1987 · N4570C · Substantial damage
  > The plt lost control of the acft after the tail was raised during takeoff. The acft groundlooped and collided with a snow bank which damaged the rt wing, landing gear and elevator.
- [NTSB ANC85LA166](https://openairdocs.org/ntsb/ANC85LA166.md): Maule M-5 · Cape Yakataga, AK · Accident · No injuries · Limited investigation · Final report · Sep 1, 1985 · N51566 · Substantial damage
  > The plt reported that he started to depart from a gravel strip, then elected to abort the takeoff. While rolling on the ground, the acft hit a 'wash-out' which bent a structural tube on the landing gear assembly.
- [NTSB ANC85LA097](https://openairdocs.org/ntsb/ANC85LA097.md): Cessna 170B · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Jun 19, 1985 · N4570C · Substantial damage
  > Plt lost control on landing and ground looped. Wx and field conditions not a factor.
- [NTSB ANC85FA070](https://openairdocs.org/ntsb/ANC85FA070.md): Cessna 336 · Anchorage, AK · Accident · No injuries · Field investigation · Final report · Apr 25, 1985 · N1716Z · Substantial damage
  > Witness near the crash site stated that both aircraft engines were stopped prior to the accident. The plt reported that before taking off, the fuel quantity gages indicated there was sufficient fuel for the flight, the plt did not preflightthe aircraft.…
- [NTSB ANC82DA065](https://openairdocs.org/ntsb/ANC82DA065.md): Maule M-4-210C · Eagle River, AK · Accident · No injuries · Final report · Aug 4, 1982 · N9872M · Substantial damage
  > The pilot reported that he preflighted the float plane, pumped the floats, and checked for water. After the engine start, taxi, and pretakeoff checks, he set the flaps at the first notch. He aborted his first takeoff run and taxied back for a longer run. The…
- [NTSB ANC81DAG13](https://openairdocs.org/ntsb/ANC81DAG13.md): Maule M-5 · Anchorage, AK · Accident · Minor injuries · Closed · Dec 6, 1980 · N62003 · Destroyed
- [NTSB ANC80DAG23](https://openairdocs.org/ntsb/ANC80DAG23.md): Maule M-5 · Naknek, AK · Accident · Minor injuries · Closed · Jan 11, 1980 · N62022 · Substantial damage
- [NTSB ANC78DAG73](https://openairdocs.org/ntsb/ANC78DAG73.md): Maule M5210C · Homer, AK · Accident · Minor injuries · Closed · Jun 4, 1978 · N319X · Destroyed
- [NTSB ANC78DA035](https://openairdocs.org/ntsb/ANC78DA035.md): Maule M4210C · Bethel, AK · Accident · 1 fatal · Closed · Apr 30, 1978 · N9842M · Substantial damage
- [NTSB ANC77DAH14](https://openairdocs.org/ntsb/ANC77DAH14.md): Maule M-5 · Hayes River, AK · Accident · No injuries · Closed · Sep 13, 1977 · N51566 · Destroyed
- [NTSB ANC77FAA20](https://openairdocs.org/ntsb/ANC77FAA20.md): Maule M-4 · Fairbanks, AK · Accident · No injuries · Closed · May 19, 1977 · N9804M · Substantial damage
- [NTSB ANC77DA020](https://openairdocs.org/ntsb/ANC77DA020.md): Maule M5 · Ft Yukon, AK · Accident · Minor injuries · Closed · Jan 20, 1977 · N423X · Substantial damage
- [NTSB ANC76DAA44](https://openairdocs.org/ntsb/ANC76DAA44.md): Maule M5210C · Fairbanks, AK · Accident · Minor injuries · Closed · Jul 10, 1976 · N62051 · Substantial damage
- [NTSB ANC76AA085](https://openairdocs.org/ntsb/ANC76AA085.md): Cessna 337 · Barrow, AK · Accident · No injuries · Closed · May 4, 1976 · N44HE · Substantial damage
- [NTSB ANC76DAG88](https://openairdocs.org/ntsb/ANC76DAG88.md): Maule M-4210 · Talkeetna, AK · Accident · No injuries · Closed · Feb 7, 1976 · N9804M · Substantial damage
- [NTSB ANC76DAG64](https://openairdocs.org/ntsb/ANC76DAG64.md): Maule M-4210 · Anchorage, AK · Accident · No injuries · Closed · Nov 10, 1975 · N9808M · Substantial damage
- [NTSB ANC76DAG47](https://openairdocs.org/ntsb/ANC76DAG47.md): Maule M-5 · Mt Susitna, AK · Accident · No injuries · Closed · Sep 27, 1975 · N305X · Substantial damage

Next page: https://openairdocs.org/ntsb.md?engine=17025&state=AK&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."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 ('17025', '17045'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17025&state=AK

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