# NTSB investigations: Lycoming 0-320 series, MT

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 5 · 230 cases

## Latest cases

- [NTSB WPR26LA348](https://openairdocs.org/ntsb/WPR26LA348.md): Piper PA-18-150 · Roundup, MT · Accident · No injuries · Class 4 · Limited · Investigation open · Sep 15, 2026 · N4500W · Substantial damage
- [NTSB WPR25LA243](https://openairdocs.org/ntsb/WPR25LA243.md): Cessna 172N · Ronan, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 8, 2025 · N734SW · Substantial damage
  > The student pilot's inadequate landing flare and recovery from a bounced landing.
- [NTSB WPR25FA223](https://openairdocs.org/ntsb/WPR25FA223.md): Grumman American Avn. AA-5 · West Glacier, MT · Accident · 2 fatal · Class 3 · Field · Preliminary report · Jul 26, 2025 · N1342R · Substantial damage
  > On July 26, 2025, about 0942 mountain daylight time, a Grumman AA-5, N1342R, was destroyed when it was involved in an accident near West Glacier, Montana. The pilot and passenger were fatally injured. The airplane was operated as a Title 14 Code of Federal…
- [NTSB WPR25LA194](https://openairdocs.org/ntsb/WPR25LA194.md): Bellanca 7GCBC · Helena, MT · Accident · No injuries · Class 4 · Limited · Final report · Jun 30, 2025 · N50476 · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during landing.
- [NTSB WPR25FA182](https://openairdocs.org/ntsb/WPR25FA182.md): Cessna 172 · Billings, MT · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jun 19, 2025 · N79306 · Substantial damage
  > On June 19, 2025, at 1412 mountain daylight time, a Cessna 172K airplane, N79306, was destroyed when it was involved in an accident near Billings, Montana. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations…
- [NTSB WPR25LA074](https://openairdocs.org/ntsb/WPR25LA074.md): Piper PA-18-150 · Red Rock, MT · Accident · No injuries · Class 4 · Limited · Final report · Jan 6, 2025 · N4644Y · Substantial damage
  > The pilot's failure to maintain directional control during takeoff, which resulted in an impact with deep snow and vegetation.
- [NTSB WPR24LA271](https://openairdocs.org/ntsb/WPR24LA271.md): Piper PA-18-150 · Manhattan, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 11, 2024 · N8576Y · Substantial damage
  > A total loss of engine power due to carburetor icing.
- [NTSB WPR22LA356](https://openairdocs.org/ntsb/WPR22LA356.md): Cessna 172M · Superior, MT · Accident · No injuries · Class 4 · Limited · Final report · Sep 26, 2022 · N12113 · Substantial damage
  > The pilot’s excessive airspeed during a landing, which resulted in a runway overrun and collision with terrain.
- [NTSB WPR22LA301](https://openairdocs.org/ntsb/WPR22LA301.md): Piper PA-28-140 · Laurel, MT · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 11, 2022 · N5780F · Substantial damage
  > The loss of climb performance due to undetermined reasons.
- [NTSB WPR21LA163](https://openairdocs.org/ntsb/WPR21LA163.md): Piper PA-18-150 · Wilsall, MT · Accident · No injuries · Class 4 · Limited · Final report · Apr 18, 2021 · N83359 · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll with a crosswind.
- [NTSB WPR21LA137](https://openairdocs.org/ntsb/WPR21LA137.md): Piper PA-18-150 · Three Forks, MT · Accident · No injuries · Class 4 · Limited · Final report · Mar 17, 2021 · N82479 · Substantial damage
  > The pilot’s improper landing flare, which resulted in a loss of directional control, runway excursion and impact with terrain.
- [NTSB WPR21LA067](https://openairdocs.org/ntsb/WPR21LA067.md): Cessna 172 · Dillon, MT · Accident · Serious injuries · Class 4 · Limited · Final report · Dec 8, 2020 · N46017 · Substantial damage
  > The student pilot’s exceedance of the airplane’s critical angle attack during an attempted go-around, which resulted in an aerodynamic stall.
- [NTSB WPR21LA032](https://openairdocs.org/ntsb/WPR21LA032.md): Cessna 172 · Billings, MT · Accident · 1 fatal · Class 3 · Limited · Final report · Oct 31, 2020 · N124TW · Substantial damage
  > The pilot’s failure to maintain the proper descent glide path while on final approach for reasons that could not be determined from available evidence.
- [NTSB WPR20LA278](https://openairdocs.org/ntsb/WPR20LA278.md): Piper PA28 · Harlowton, MT · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 14, 2020 · N317LB · Substantial damage
  > The pilot’s failure to follow the appropriate takeoff procedures, which resulted in a collision with terrain.
- [NTSB WPR20CA214](https://openairdocs.org/ntsb/WPR20CA214.md): Piper PA 18A-135 · Marion, MT · Accident · No injuries · Class 4 · Data collection · Final report · Jul 6, 2020 · N60733 · Substantial damage
  > The pilot's failure to maintain directional control of the airplane while landing in gusting wind conditions, which resulted in a runway excursion and collision with a fence.
- [NTSB WPR20CA066](https://openairdocs.org/ntsb/WPR20CA066.md): Piper PA 23 · Helena, MT · Accident · No injuries · Data collection · Final report · Jan 8, 2020 · N1428P · Substantial damage
  > The pilot's improper decision to attempt an off-airport departure from rough terrain without inspecting the takeoff area, which resulted in a collision with a shallow rut during takeoff and the nose landing gear collapsing.
- [NTSB GAA16CA419](https://openairdocs.org/ntsb/GAA16CA419.md): Cessna 172 · Lewiston, MT · Accident · No injuries · Data collection · Final report · Aug 2, 2016 · N734GM · Substantial damage
  > The pilot's failure to ensure that his seat was adjusted and locked, which resulted in his seat sliding aft during the takeoff roll, and the subsequent loss of directional control and runway excursion.
- [NTSB GAA16CA284](https://openairdocs.org/ntsb/GAA16CA284.md): Bellanca 7GCBC · Ferndale, MT · Accident · No injuries · Data collection · Final report · Jun 5, 2016 · N8777 · Substantial damage
  > The pilot's loss of directional control during takeoff resulting in a decision to rotate early, and a collision with a hangar and subsequent fire.
- [NTSB GAA16CA265](https://openairdocs.org/ntsb/GAA16CA265.md): Piper PA 18-150 · Laurel, MT · Accident · Minor injuries · Data collection · Final report · May 30, 2016 · N41553 · Substantial damage
  > The pilot's loss of directional control during the landing touchdown, resulting in a runway excursion and substantial damage to the both wings.
- [NTSB WPR15FA247](https://openairdocs.org/ntsb/WPR15FA247.md): Cessna 172P · Townsend, MT · Accident · 2 fatal · Field investigation · Final report · Aug 20, 2015 · N62731 · Substantial damage
  > The non-instrument-rated pilot's decision to conduct a cross-country flight over a mountain range in dark night conditions with limited night flight experience, which resulted in a collision with mountainous terrain.
- [NTSB GAA15CA235](https://openairdocs.org/ntsb/GAA15CA235.md): Cessna 172N · Kalispell, MT · Accident · No injuries · Data collection · Final report · Aug 19, 2015 · N733NH · Substantial damage
  > The pilot's loss of directional control, which resulted in a runway excursion, and collision with runway and taxiway lights and terrain.
- [NTSB WPR15LA087](https://openairdocs.org/ntsb/WPR15LA087.md): Piper PA 28-140 · Helena, MT · Accident · Minor injuries · Limited investigation · Final report · Jan 20, 2015 · N4666R · Substantial damage
  > Loss of engine power after takeoff for reasons that could not be determined because postaccident examination did not reveal any evidence of an anomaly that would have precluded normal operation.
- [NTSB WPR15FA062](https://openairdocs.org/ntsb/WPR15FA062.md): Piper PA 18-150 · Ronan, MT · Accident · 1 fatal · Field investigation · Final report · Dec 16, 2014 · N5989Z · Substantial damage
  > The pilot’s failure to maintain clearance from terrain while performing an intentional, abrupt low-level maneuver.
- [NTSB WPR14CA384](https://openairdocs.org/ntsb/WPR14CA384.md): Bellanca 7GCBC · Meadow Creek, MT · Accident · Minor injuries · Data collection · Final report · Sep 20, 2014 · N714TM · Substantial damage
  > The pilot's inadequate landing flare and failure to maintain aircraft control during landing.
- [NTSB WPR14CA246](https://openairdocs.org/ntsb/WPR14CA246.md): Piper PA 22-160 · Jackson, MT · Accident · No injuries · Data collection · Final report · Jun 13, 2014 · N9024D · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during landing roll.
- [NTSB WPR14LA023](https://openairdocs.org/ntsb/WPR14LA023.md): Cessna 172 - M · Hardin, MT · Accident · Minor injuries · Limited investigation · Final report · Oct 21, 2013 · N80257 · Substantial damage
  > A rough-running engine and partial loss of power, which resulted from the pilot’s failure to use carburetor heat appropriately while operating in an area conducive to carburetor icing.
- [NTSB WPR13CA362](https://openairdocs.org/ntsb/WPR13CA362.md): Bellanca 7GCBC · West Yellowstone, MT · Accident · No injuries · Data collection · Final report · Aug 1, 2013 · N926BW · Substantial damage
  > The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and a collision with an approach slope indicator system component.
- [NTSB WPR12CA209](https://openairdocs.org/ntsb/WPR12CA209.md): Piper PA-28-140 · Sula, MT · Accident · Minor injuries · Data collection · Final report · Jun 8, 2012 · N2839T · Substantial damage
  > The pilot's inability to maintain clearance from terrain while operating in a downdraft over mountainous terrain.
- [NTSB WPR12FA123](https://openairdocs.org/ntsb/WPR12FA123.md): Bellanca 7GCBC · Brockton, MT · Accident · 1 fatal · Field investigation · Final report · Mar 5, 2012 · N5542K · Substantial damage
  > The pilot’s failure to maintain adequate airspeed and airplane control while maneuvering at a low altitude, which resulted in a stall and subsequent impact with terrain.
- [NTSB WPR11FA390](https://openairdocs.org/ntsb/WPR11FA390.md): Piper PA-18-150 · Forsyth, MT · Accident · 2 fatal · Field investigation · Final report · Aug 18, 2011 · N7666D · Substantial damage
  > The pilot’s failure to maintain adequate airspeed while maneuvering, which resulted in a stall/mush, loss of control, and impact with terrain.
- [NTSB WPR10CA469](https://openairdocs.org/ntsb/WPR10CA469.md): Piper PA-18-150 · White Sulphur Springs, MT · Accident · No injuries · Data collection · Final report · Sep 24, 2010 · N4036E · Substantial damage
  > The pilot's failure to maintain control of the airplane during a go-around in turbulent wind conditions, which resulted in a collision with trees.
- [NTSB WPR10LA393](https://openairdocs.org/ntsb/WPR10LA393.md): Piper PA18A · Billings, MT · Accident · Minor injuries · Limited investigation · Final report · Aug 10, 2010 · N2660A · Substantial damage
  > The pilot's inadequate compensation for the wind conditions and failure to maintain lateral and directional control of the airplane during landing.
- [NTSB WPR10TA335](https://openairdocs.org/ntsb/WPR10TA335.md): Piper PA-18-150 · Dillon, MT · Accident · No injuries · Final report · Jul 5, 2010 · N6110A · Substantial damage
  > The pilot's failure to maintain directional control during landing.
- [NTSB WPR10LA180](https://openairdocs.org/ntsb/WPR10LA180.md): Piper PA-22-150 · Terry, MT · Accident · No injuries · Limited investigation · Final report · Mar 25, 2010 · N3351Z · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in gusting winds. Contributing to the accident was a loss of engine power on final approach due to fuel exhaustion as a result of the pilot having to divert due to deteriorating…
- [NTSB SEA08CA169](https://openairdocs.org/ntsb/SEA08CA169.md): Bellanca 7GCBC · Helena, MT · Accident · No injuries · Data collection · Final report · Jul 27, 2008 · N50476 · Substantial damage
  > The failure of the pilot receiving instruction to adequately compensate for the crosswind condition and failure to maintain directional control. Also causal was the flight instructor's delayed remedial action and inadequate supervision of the flight.
- [NTSB LAX07CA288](https://openairdocs.org/ntsb/LAX07CA288.md): Bellanca 7GCBC · Laurel, MT · Accident · No injuries · Data collection · Final report · Sep 30, 2007 · N41695 · Substantial damage
  > Corrosion and fatigue-induced failure of the landing gear structure.
- [NTSB LAX07CA279](https://openairdocs.org/ntsb/LAX07CA279.md): Cessna 172L · Helena, MT · Accident · No injuries · Data collection · Final report · Sep 13, 2007 · N7221Q · Substantial damage
  > unexpected collision with birds on short final that damaged the airplane wing structure.
- [NTSB SEA07CA194](https://openairdocs.org/ntsb/SEA07CA194.md): Piper PA-18-150 · Jordan, MT · Accident · No injuries · Data collection · Final report · Jul 13, 2007 · N7145Z · Substantial damage
  > The pilot's failure to maintain aircraft control during a go-around. Contributing factors were the pilot's selection of unsuitable terrain for landing and the rough/uneven terrain.
- [NTSB SEA06LA109](https://openairdocs.org/ntsb/SEA06LA109.md): Piper PA-28-160 · Laurel, MT · Accident · Serious injuries · Limited investigation · Final report · Jun 2, 2006 · N1123W · Substantial damage
  > The failure of maintenance personnel to properly reinstall the left-hand control yoke to the left-hand control column, and the failure of other maintenance personnel to properly verify the installation, which resulted in the pilot's loss of control in flight…
- [NTSB SEA06CA103](https://openairdocs.org/ntsb/SEA06CA103.md): Cessna 172M · Hamilton, MT · Accident · No injuries · Data collection · Final report · May 20, 2006 · N12808 · Substantial damage
  > The pilot's inadequate compensation for the wind conditions during the landing roll which resulted in his failure to maintain directional control. Factors included variable winds and gusty crosswinds.
- [NTSB SEA06CA095](https://openairdocs.org/ntsb/SEA06CA095.md): Helmer Avid Magnum · Big Timber, MT · Accident · No injuries · Data collection · Final report · May 16, 2006 · N124WT · Substantial damage
  > The pilot's failure to maintain directional control after he diverted his attention to close the aircraft's door during the takeoff roll. Factors include a fence and fence post along the side of the runway.
- [NTSB SEA06CA098](https://openairdocs.org/ntsb/SEA06CA098.md): Cessna 172N · Billings, MT · Accident · No injuries · Data collection · Final report · Apr 30, 2006 · N739AJ · Substantial damage
  > The pilot's failure to maintain clearance from a sign while taxiing to parking.
- [NTSB SEA05LA100](https://openairdocs.org/ntsb/SEA05LA100.md): Cessna 152TW · Missoula, MT · Accident · No injuries · Limited investigation · Final report · May 12, 2005 · N7866Z · Substantial damage
  > The pilot's failure to maintain clearance from a taxiway identification sign as he attempted to turn off the runway onto the taxiway during the last part of the landing roll. Factors include a taxiway identification sign in the vicinity of the intersection of…
- [NTSB SEA05LA048](https://openairdocs.org/ntsb/SEA05LA048.md): Piper PA-28-140 · Superior, MT · Accident · No injuries · Limited investigation · Final report · Feb 9, 2005 · N6399W · Substantial damage
  > A loss of engine power due to the pilot's inadequate planning/decision and improper fuel management, which resulted in fuel starvation. A contributing factor was the berm.
- [NTSB SEA04CA151](https://openairdocs.org/ntsb/SEA04CA151.md): Piper PA22-20 · Wht Sulphur Spg, MT · Accident · No injuries · Data collection · Final report · Aug 1, 2004 · N3838P · Substantial damage
  > The failure of the private pilot receiving flight training for a tail wheel endorsement to maintain aircraft control, and his excessive braking during the landing roll, subsequently nosing over the airplane. A contributing factor was the flight instructor's…
- [NTSB SEA04LA101](https://openairdocs.org/ntsb/SEA04LA101.md): Piper PA-18A · Trego, MT · Accident · Minor injuries · Limited investigation · Final report · Jun 8, 2004 · N7094D · Destroyed
  > Failure to maintain clearance from trees during the initial climb.
- [NTSB SEA04LA098](https://openairdocs.org/ntsb/SEA04LA098.md): Piper PA-18-150 · Columbus, MT · Accident · Minor injuries · Limited investigation · Final report · Jun 5, 2004 · N82172 · Substantial damage
  > The pilot's failure to maintain directional control of the aircraft during the landing and subsequent go-around. Inadequate compensation for the gusting winds and an airport hangar were factors.
- [NTSB SEA03LA188](https://openairdocs.org/ntsb/SEA03LA188.md): Piper PA-22-160 · Billings, MT · Accident · No injuries · Limited investigation · Final report · Sep 10, 2003 · N9332D · Substantial damage
  > The pilot's inadequate compensation for wind conditions which led to a loss of control and subsequent ground loop. A contributing factor was the wind gust.
- [NTSB SEA03LA140](https://openairdocs.org/ntsb/SEA03LA140.md): Piper PA-18A · Zurich, MT · Accident · Serious injuries · Limited investigation · Final report · Jul 15, 2003 · N6792B · Substantial damage
  > The pilot's failure to maintain airspeed which resulted in an inadvertent stall.
- [NTSB SEA03CA102](https://openairdocs.org/ntsb/SEA03CA102.md): Piper PA-18 · Silver City, MT · Accident · No injuries · Data collection · Final report · Jun 14, 2003 · N82946 · Substantial damage
  > Proper descent rate not maintained while on final approach. A wind gust is a factor in the accident.

Next page: https://openairdocs.org/ntsb.md?engine=41508&state=MT&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" = 'MT' 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 ('41508'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41508&state=MT

---
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.