# NTSB investigations: Lycoming 0-540 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 3 · 115 cases

## Latest cases

- [NTSB ANC25LA105](https://openairdocs.org/ntsb/ANC25LA105.md): Maule M-5-235C · Point MacKenzie, AK · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Sep 13, 2025 · N343GA · Substantial damage
  > On September 13, 2025, about 12:28 Alaska daylight time, a Maule M5-235C airplane, N343GA, was substantially damaged when it was involved in an accident near Point McKenzie, Alaska. The commercial pilot sustained serious injuries. The airplane was operated…
- [NTSB ANC23LA033](https://openairdocs.org/ntsb/ANC23LA033.md): Maule M-7-235 · Soldotna, AK · Accident · No injuries · Class 4 · Limited · Final report · May 10, 2023 · N30AG · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll in gusting crosswind conditions.
- [NTSB ANC23LA021](https://openairdocs.org/ntsb/ANC23LA021.md): Piper PA-32-260 · Tok, AK · Accident · No injuries · Class 4 · Limited · Final report · Feb 11, 2023 · N44782 · Substantial damage
  > The pilot's failure to maintain a proper approach glide path, which resulted in a hard landing, short of his anticipated touchdown point.
- [NTSB ANC23LA002](https://openairdocs.org/ntsb/ANC23LA002.md): Piper PA-32-260 · Cordova, AK · Accident · 1 fatal · Class 3 · Limited · Final report · Oct 16, 2022 · N3432W · Substantial damage
  > The pilot’s improper decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into terrain.
- [NTSB ANC22FA005](https://openairdocs.org/ntsb/ANC22FA005.md): Gerald Jones 2+2 · Kodiak, AK · Accident · 1 fatal · Class 3 · Field · Final report · Nov 7, 2021 · N540AK · Substantial damage
  > The pilot's failure to maintain adequate airspeed while maneuvering, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall.
- [NTSB GAA19CA507](https://openairdocs.org/ntsb/GAA19CA507.md): Maule M5 · Anchorage, AK · Accident · No injuries · Data collection · Final report · Aug 22, 2019 · N9096E · Substantial damage
  > The pilot's excessive braking during landing on a dry lakebed, which resulted in a nose-over.
- [NTSB GAA19CA387](https://openairdocs.org/ntsb/GAA19CA387.md): Piper PA32 · Seldovia, AK · Accident · No injuries · Data collection · Final report · Jul 7, 2019 · N3556W · Substantial damage
  > The pilot's failure to attain a sufficient climb following a short-field takeoff, which resulted in collision with trees.
- [NTSB ANC19FA026](https://openairdocs.org/ntsb/ANC19FA026.md): Helio H 250 · Seward, AK · Accident · 3 fatal · Field investigation · Final report · Jun 21, 2019 · N6314V · Destroyed
  > The pilot's failure to maintain clearance from trees during takeoff, which resulted in an in-flight collision, a loss of control, and impact with terrain.
- [NTSB GAA18CA006](https://openairdocs.org/ntsb/GAA18CA006.md): Maule M 7 · Manokatak, AK · Accident · No injuries · Data collection · Final report · Oct 7, 2017 · N81818 · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff in gusting wind conditions.
- [NTSB ANC17TA015](https://openairdocs.org/ntsb/ANC17TA015.md): Piper PA-32 · Pilot Point, AK · Accident · Serious injuries · Final report · Jan 17, 2017 · N4261T · Substantial damage
  > The pilot's continued flight into known icing conditions, which resulted in structural icing and a forced landing on icy, snow-covered terrain.
- [NTSB ANC16LA072](https://openairdocs.org/ntsb/ANC16LA072.md): Helio H-250 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Sep 26, 2016 · N6324V · Substantial damage
  > The fatigue fracture failure of both main landing gear (MLG) legs during the landing roll, which resulted in the collapse and separation of both MLG legs.
- [NTSB GAA16CA142](https://openairdocs.org/ntsb/GAA16CA142.md): Maule M5 · Wasilla, AK · Accident · No injuries · Data collection · Final report · Mar 1, 2016 · N12BE · Substantial damage
  > The student pilot's failure to maintain directional control during the landing, which resulted in a runway excursion, and an impact with terrain.
- [NTSB ANC15LA073](https://openairdocs.org/ntsb/ANC15LA073.md): Robinson Helicopter R44 · Fort Glenn, AK · Accident · No injuries · Limited investigation · Final report · Sep 19, 2015 · N7162R · Substantial damage
  > The separation of the tail rotor gearbox from the tailboom attachment point due to overstress loads imposed by a tail rotor blade imbalance as the result of impact with an undetermined object during low-level flight operations.
- [NTSB ANC15CA038](https://openairdocs.org/ntsb/ANC15CA038.md): Maule M 7-235B · Talkeetna, AK · Accident · No injuries · Data collection · Final report · Jun 6, 2015 · N1002H · Substantial damage
  > The pilot's loss of directional control during landing, resulting in a collision with terrain.
- [NTSB ANC14CA081](https://openairdocs.org/ntsb/ANC14CA081.md): Maule M 5-235C · Talkeetna, AK · Accident · No injuries · Data collection · Final report · Sep 8, 2014 · N56332 · Substantial damage
  > The pilot's excessive taxi speed, which resulted in a loss of control.
- [NTSB ANC14CA060](https://openairdocs.org/ntsb/ANC14CA060.md): Piper PA 32-260 · Anderson, AK · Accident · No injuries · Data collection · Final report · Aug 6, 2014 · N3502W · Substantial damage
  > The pilot's inadequate compensation for wind conditions, which resulted in a hard landing.
- [NTSB ANC13FAMS2](https://openairdocs.org/ntsb/ANC13FAMS2.md): Piper PA-32-260 · Yakutat, AK · Accident · 1 fatal · Missing aircraft · Final report · Sep 9, 2013 · N3705W · Destroyed
  > Undetermined because the pilot and airplane were not found.
- [NTSB ANC10LA071](https://openairdocs.org/ntsb/ANC10LA071.md): Piper PA-32-260 · Chickaloon, AK · Accident · Minor injuries · Limited investigation · Final report · Aug 8, 2010 · N3432W · Substantial damage
  > The pilot's continued visual flight into instrument meteorological conditions, resulting in an in-flight collision with terrain.
- [NTSB ANC09CA056](https://openairdocs.org/ntsb/ANC09CA056.md): Maule M-5-235C · Wasilla, AK · Accident · No injuries · Data collection · Final report · Jun 12, 2009 · N407X · Substantial damage
  > The pilot's selection of an unsuitable takeoff area with an unfavorable wind.
- [NTSB ANC09LA042](https://openairdocs.org/ntsb/ANC09LA042.md): Piper PA-24-250 · Wasilla, AK · Accident · No injuries · Limited investigation · Final report · May 16, 2009 · N7440P · Substantial damage
  > A loss of engine power due to the blockage of the carburetor air inlet by a piece of engine baffling. Contributing to the accident was a worn engine baffle, and the pilot/owner's failure to have the engine baffle replaced.
- [NTSB ANC09GA040](https://openairdocs.org/ntsb/ANC09GA040.md): Robinson Helicopter R44 · Iliamna, AK · Accident · No injuries · Final report · May 12, 2009 · N7196H · Substantial damage
  > The main rotor transmission mount design, which resulted in an in-flight vibration/oscillation, and damage to the helicopter during an emergency descent and hard landing. Contributing to the accident was the lack of information from the manufacturer regarding…
- [NTSB ANC07CA105](https://openairdocs.org/ntsb/ANC07CA105.md): Piper PA-32 · Chenega Bay, AK · Accident · No injuries · Data collection · Final report · Sep 21, 2007 · N3948W · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, which resulted in a collision with a ditch during the landing roll. A factor associated with the accident was the ditch.
- [NTSB ANC07CA087](https://openairdocs.org/ntsb/ANC07CA087.md): Maule M7 · Bettles, AK · Accident · No injuries · Data collection · Final report · Aug 17, 2007 · N717E · Substantial damage
  > The pilot's selection of an unsuitable landing site, which resulted in an encounter with soft terrain, and a nose over during the landing roll.
- [NTSB ANC07LA057](https://openairdocs.org/ntsb/ANC07LA057.md): Cessna 182RG · Tok, AK · Accident · No injuries · Limited investigation · Final report · Jun 27, 2007 · N6110T · Substantial damage
  > The pilot's failure to maintain control of the airplane during takeoff initial climb.
- [NTSB ANC07CA049](https://openairdocs.org/ntsb/ANC07CA049.md): Britten-Norman BN2A26 · Egegik, AK · Accident · No injuries · Data collection · Final report · Jun 18, 2007 · N27MR · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, which resulted in structural damage during the landing roll when the airplane encountered soft sand.
- [NTSB ANC07LA001](https://openairdocs.org/ntsb/ANC07LA001.md): Piper PA-32-260 · Port Alsworth, AK · Accident · Serious injuries · Limited investigation · Final report · Oct 9, 2006 · N996PK · Substantial damage
  > The pilot's inadequate compensation for wind conditions, which resulted in a loss of control while maneuvering, and an in-flight collision with tree covered terrain. Factors associated with the accident are the pilot's inadequate evaluation of weather…
- [NTSB ANC06FA089](https://openairdocs.org/ntsb/ANC06FA089.md): Piper PA-28 · Manley Hot Spng, AK · Accident · 1 fatal · Field investigation · Final report · Jul 6, 2006 · N9026W · Destroyed
  > The pilot's continued cruise flight into known adverse weather conditions, his failure to maintain aircraft control while maneuvering, and his exceeding the design stress limits of the airplane, which resulted in an in-flight break-up. Factors associated with…
- [NTSB ANC06LA064](https://openairdocs.org/ntsb/ANC06LA064.md): Robinson R44 · Skwentna, AK · Accident · No injuries · Limited investigation · Final report · May 30, 2006 · N688JK · Substantial damage
  > The pilot's improper rigging of the external sling load, which allowed the suspended load/cargo cable to entangle and disable the tail rotor control, resulting in a loss of control during cruise and an in-flight collision with terrain.
- [NTSB ANC06LA072](https://openairdocs.org/ntsb/ANC06LA072.md): Helio H-250 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · May 20, 2006 · N6324V · Substantial damage
  > The pilot's improper use of the carburetor heat control during takeoff, which resulted in a partial loss of engine power, a hard landing, and an on ground encounter with terrain. A factor contributing to the accident was an inadvertent ground loop.
- [NTSB ANC04LA113](https://openairdocs.org/ntsb/ANC04LA113.md): Britten-Norman BN-2A · Kodiak, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 23, 2004 · N6522T · Substantial damage
  > The pilot's inadequate compensation for wind conditions, and his intentional flight into adverse weather conditions, which resulted in a loss of control and collision with terrain during takeoff-initial climb. Factors contributing to the accident were high…
- [NTSB ANC04FA092](https://openairdocs.org/ntsb/ANC04FA092.md): Maule M-5-235C · Seward, AK · Accident · 2 fatal · Field investigation · Final report · Aug 15, 2004 · N6194M · Substantial damage
  > The failure of an aviation mechanic/inspector to adequately inspect the pilot/owner's work during the engine overhaul, which resulted in a loss of engine oil and engine power during cruise flight, and a subsequent ditching. Factors associated with the…
- [NTSB ANC04LA014](https://openairdocs.org/ntsb/ANC04LA014.md): Piper PA-32-260 · Larson Bay, AK · Accident · No injuries · Limited investigation · Final report · Dec 12, 2003 · N3983W · Substantial damage
  > The loss of engine power for an unknown reason while maneuvering, which resulted in the pilot ditching the airplane. Factors contributing to the accident were a low ceiling and a snow squall.
- [NTSB ANC02FA108](https://openairdocs.org/ntsb/ANC02FA108.md): Robinson R-44 · Ketchikan, AK · Accident · 2 fatal · Field investigation · Final report · Aug 29, 2002 · N7189T · Substantial damage
  > The pilot's failure to maintain control of the helicopter in-flight due to spatial disorientation, which resulted in an uncontrolled descent and impact with the surface of a lake. Factors contributing to the accident were the high terrain surrounding the…
- [NTSB ANC02LA099](https://openairdocs.org/ntsb/ANC02LA099.md): Maule M-7-235 · Palmer, AK · Accident · No injuries · Limited investigation · Final report · Aug 19, 2002 · N897M · Substantial damage
  > The fracture of the right main landing gear axle during landing roll. Factors associated with the accident were corrosion of the landing gear axle, failure of company maintenance personnel to adequately inspect the axle and detect the corrosion, and rough and…
- [NTSB ANC02LA095](https://openairdocs.org/ntsb/ANC02LA095.md): Piper PA-32-260 · Red Devil, AK · Accident · Minor injuries · Limited investigation · Final report · Aug 14, 2002 · N3853W · Substantial damage
  > A partial loss of engine power for an undetermined reason during the initial climb after takeoff that resulted in a collision with trees. A contributing factor in the accident was rising terrain which was unsuitable for a forced landing.
- [NTSB ANC02LA061](https://openairdocs.org/ntsb/ANC02LA061.md): Robinson R-44 · Shageluk, AK · Accident · No injuries · Limited investigation · Final report · Jun 26, 2002 · N144AK · Substantial damage
  > The pilot's failure to maintain a proper glide path. A factor associated with the accident was the pilot's diverted attention.
- [NTSB ANC02LA043](https://openairdocs.org/ntsb/ANC02LA043.md): Robinson R-44 · Galena, AK · Accident · No injuries · Limited investigation · Final report · Jun 7, 2002 · N7130G · Destroyed
  > The pilot's selection of unsuitable terrain for landing which precipitated a grass fire. Factors contributing to the accident were the manufacturer's inadequate design of the helicopter's exhaust system, placing it low to the ground, and terrain conditions…
- [NTSB ANC02FA025](https://openairdocs.org/ntsb/ANC02FA025.md): Piper PA-28-235 · Manokotak, AK · Accident · 1 fatal · Field investigation · Final report · Mar 23, 2002 · N1220R · Substantial damage
  > The pilot's continued VFR flight into instrument meteorological conditions, and subsequent collision with terrain during cruise flight. Factors in the accident were low ceilings, snow, and mountainous snow-covered terrain.
- [NTSB ANC02LA012](https://openairdocs.org/ntsb/ANC02LA012.md): Britten-Norman BN2A-26 · Ouzinkie, AK · Accident · No injuries · Limited investigation · Final report · Feb 1, 2002 · N27MR · Substantial damage
  > The pilot's selection of unsuitable terrain for takeoff. Factors associated with the accident are a slush covered runway, and rough/uneven terrain.
- [NTSB ANC02LA004](https://openairdocs.org/ntsb/ANC02LA004.md): Piper PA-32-260 · Port Heiden, AK · Accident · Serious injuries · Limited investigation · Final report · Oct 30, 2001 · N5573J · Destroyed
  > The pilot's delay in aborting the landing. Factors in the accident were snow and ice on the runway surface, and the pilot's excessive taxi speed.
- [NTSB ANC01LA131](https://openairdocs.org/ntsb/ANC01LA131.md): Maule M-7-235B · Koliganek, AK · Accident · No injuries · Limited investigation · Final report · Sep 1, 2001 · N1007U · Substantial damage
  > The pilot's delay in aborting the takeoff. A factor in the accident was the pilot's diverted attention during the takeoff.
- [NTSB ANC01FA084](https://openairdocs.org/ntsb/ANC01FA084.md): Maule M-5-235C · Bettles, AK · Accident · 4 fatal · Field investigation · Final report · Jul 15, 2001 · N9237E · Substantial damage
  > The pilot's inadvertent stall of the airplane during an unknown phase of flight.
- [NTSB ANC01TA035](https://openairdocs.org/ntsb/ANC01TA035.md): Robinson R-44 · Chickaloon, AK · Accident · No injuries · Final report · Feb 4, 2001 · N7183P · Substantial damage
  > The pilot's collision with terrain due to his inadequate planning of the approach, and his failure to maintain the helicopter's main rotor RPM during a go-around. Factors in the accident were a tailwind, flat lighting conditions, and snow-covered terrain.
- [NTSB ANC01LA024](https://openairdocs.org/ntsb/ANC01LA024.md): Maule M-5 · King Salmon, AK · Accident · No injuries · Limited investigation · Final report · Dec 16, 2000 · N5644N · Substantial damage
  > The loss of engine power during the landing approach due to the pilot's inadequate preflight of the airplane and contamination (water) in the carburetor.
- [NTSB ANC01LA016](https://openairdocs.org/ntsb/ANC01LA016.md): Piper PA-32-260 · Lime Village, AK · Accident · No injuries · Limited investigation · Final report · Nov 9, 2000 · N4803S · Substantial damage
  > The pilot's failure to properly utilize carburetor heat. Factors in the accident were the presence of carburetor icing conditions, and unsuitable terrain for a forced landing.
- [NTSB ANC00LA090](https://openairdocs.org/ntsb/ANC00LA090.md): Maule ML-5 · Wasilla, AK · Accident · No injuries · Limited investigation · Final report · Jul 15, 2000 · N6194M · Substantial damage
  > The pilot's improper use of the fuel tank selector, resulting in fuel starvation.
- [NTSB ANC99LA041](https://openairdocs.org/ntsb/ANC99LA041.md): Maule M-5 · Talkeetna, AK · Accident · No injuries · Limited investigation · Final report · Apr 4, 1999 · N9237E · Substantial damage
  > The pilot's inadequate compensation for the crosswind during landing. Factors associated with this accident were the left crosswind, and the snowbank on the edge of the runway.
- [NTSB ANC99LA006](https://openairdocs.org/ntsb/ANC99LA006.md): Britten-Norman BN-2A · English Bay, AK · Accident · No injuries · Limited investigation · Final report · Oct 16, 1998 · N6522T · Substantial damage
  > The pilot-in-command's inadequate compensation for the crosswind conditions, and failure to maintain adequate clearance from the parked airplane. Factors associated with this accident were the gusty crosswinds, and the congested takeoff area due to no parking…
- [NTSB ANC97LA023](https://openairdocs.org/ntsb/ANC97LA023.md): Maule M-5 · Chugiak, AK · Accident · No injuries · Limited investigation · Final report · Jan 18, 1997 · N5654N · Substantial damage
  > The pilot's failure to attain the proper touchdown point during landing. The snow-covered runway was a factor.
- [NTSB ANC96LA130](https://openairdocs.org/ntsb/ANC96LA130.md): Maule M-7 · Palmer, AK · Accident · No injuries · Limited investigation · Final report · Aug 24, 1996 · N897M · Substantial damage
  > The pilot's selection of an unsuitable landing area.

Next page: https://openairdocs.org/ntsb.md?engine=41532&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 ('41532'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41532&state=AK

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