# NTSB investigations, MT: Loss of engine power (total)

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 WPR26LA280](https://openairdocs.org/ntsb/WPR26LA280.md): Harmon Rocket II · Glasgow, MT · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 24, 2026 · C-FCPG · Substantial damage
  > The pilot’s inadvertent selection of the fuel selector valve to the OFF position resulted in a total loss of engine power due to fuel starvation and subsequent forced landing to a field.
- [NTSB WPR26LA155](https://openairdocs.org/ntsb/WPR26LA155.md): Aero Vodochody L-39 · Ennis, MT · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Apr 10, 2026 · N136EM · Substantial damage
  > On April 10, 2026, about 1210 mountain daylight time, an Aero Vodochody L 39, N136EM, was substantially damaged when it was involved in an accident near Ennis, Montana. The flight instructor sustained minor injuries, and the pilot undergoing instruction was…
- [NTSB WPR26LA152](https://openairdocs.org/ntsb/WPR26LA152.md): Just Highlander · Great Falls, MT · Accident · No injuries · Class 3 · Limited · Preliminary report · Apr 8, 2026 · N563JA · Substantial damage
  > On April 8, 2026, about 1106 mountain daylight time, an experimental amateur built Just Aircraft Highlander, N563JA, was substantially damaged when it was involved in an accident near Great Falls, Montana. The pilot was not injured. The airplane was operated…
- [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 WPR24FA132](https://openairdocs.org/ntsb/WPR24FA132.md): Bell 206-L4 · Anaconda, MT · Accident · 1 fatal · Class 3 · Field · Final report · Apr 26, 2024 · N988B · Destroyed
  > A total loss of engine power due to a loss of cooling oil to the turbine-to-compressor coupling shaft and subsequent fracture of the shaft at an altitude too low for the pilot to complete a successful autorotation. Contributing to the accident was carbon…
- [NTSB WPR22LA293](https://openairdocs.org/ntsb/WPR22LA293.md): Air Tractor AT-301 · Circle, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 7, 2022 · N36542 · Substantial damage
  > The loss of engine power due to carburetor ice. Contributing to the accident was the pilot’s failure to use carburetor heat.
- [NTSB WPR22LA262](https://openairdocs.org/ntsb/WPR22LA262.md): Maule M-5-235C · Three Forks, MT · Accident · No injuries · Class 3 · Limited · Final report · Jul 20, 2022 · N6224M · Substantial damage
  > A loss of engine power due to degraded and incorrectly maintained ignition system components. Contributing to the accident was the pilot’s delay in turning the airplane towards the runway when the engine began to lose power.
- [NTSB WPR21LA313](https://openairdocs.org/ntsb/WPR21LA313.md): Cessna 425 · Helena, MT · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 11, 2021 · N783MB · Substantial damage
  > A flameout of both engines due to fuel starvation for reasons that could not be determined due to the airplane’s damage.
- [NTSB WPR21LA315](https://openairdocs.org/ntsb/WPR21LA315.md): Bellanca 14-19-3 · Whitefish, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 10, 2021 · N1257R · Substantial damage
  > A total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to accomplish a preflight inspection.
- [NTSB WPR20LA308](https://openairdocs.org/ntsb/WPR20LA308.md): Piper PA 30 · Billings, MT · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 12, 2020 · N7602Y · Substantial damage
  > The pilot’s improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB GAA18CA220](https://openairdocs.org/ntsb/GAA18CA220.md): Piper PA 22 · Shelby, MT · Accident · No injuries · Data collection · Final report · Apr 19, 2018 · N1283C · Substantial damage
  > The pilot’s improper use of the fuel selector, which resulted in fuel starvation to the engine and an off-runway landing.
- [NTSB WPR17LA168](https://openairdocs.org/ntsb/WPR17LA168.md): Robinson Helicopter R44 II · Lake Sutherlin, MT · Accident · No injuries · Limited investigation · Final report · Jul 25, 2017 · N233JD · Substantial damage
  > The pilot’s transition into an out-of-ground-effect hover in high-density altitude conditions that exceeded the helicopter’s performance capabilities, which resulted in loss of rotor rpm.
- [NTSB WPR15LA229](https://openairdocs.org/ntsb/WPR15LA229.md): Cessna TU206G · Saint Ignatius, MT · Accident · No injuries · Limited investigation · Final report · Aug 3, 2015 · N235HM · Substantial damage
  > Maintenance personnel’s failure to tighten a fuel line, which resulted in a loss of fuel pressure and a subsequent loss of engine power during cruise flight and an off-airport landing and collision with obstacles.
- [NTSB WPR15LA191](https://openairdocs.org/ntsb/WPR15LA191.md): Cessna 180A · Polson, MT · Accident · No injuries · Limited investigation · Final report · Jun 19, 2015 · N9699B · Substantial damage
  > A total loss of engine power during approach for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation.
- [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 WPR14CA058](https://openairdocs.org/ntsb/WPR14CA058.md): Quad City Ultralight Acft Challenger II · Kalispell, MT · Accident · No injuries · Data collection · Final report · Nov 26, 2013 · N522PE · Substantial damage
  > A loss of engine power due to the spark plug coming out of the cylinder head.
- [NTSB WPR13LA302](https://openairdocs.org/ntsb/WPR13LA302.md): S.N.I.A.S. AS-350B Ecureuil · Hamilton, MT · Accident · No injuries · Limited investigation · Final report · Jul 1, 2013 · N989WC · Substantial damage
  > The loss of engine power during cruise flight due to the fatigue failure of a pneumatic fuel controller pipe. Also causal was maintenance personnel’s failure to adequately maintain the pipe and replace it with a thicker type.
- [NTSB WPR12LA111](https://openairdocs.org/ntsb/WPR12LA111.md): Enstrom F28 · Kalispell, MT · Accident · No injuries · Limited investigation · Final report · Feb 20, 2012 · N51727 · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR11FA348](https://openairdocs.org/ntsb/WPR11FA348.md): Cessna 210-5(205) · Darby, MT · Accident · Minor injuries · Field investigation · Final report · Jul 22, 2011 · N8427Z · Substantial damage
  > The fatigue failure of the aluminum air intake duct, which resulted in material being ingested into the engine cylinders and a subsequent loss of engine power during cruise flight.
- [NTSB WPR11LA288](https://openairdocs.org/ntsb/WPR11LA288.md): Air Tractor AT-502 · Lewistown, MT · Accident · No injuries · Limited investigation · Final report · Jun 25, 2011 · N1022N · Substantial damage
  > The fatigue fracture and separation of the fuel bypass line, which resulted in a total loss of engine power.
- [NTSB WPR10LA343](https://openairdocs.org/ntsb/WPR10LA343.md): Ercoupe 415 · Whitehall, MT · Accident · No injuries · Limited investigation · Final report · Jul 9, 2010 · N87349 · Substantial damage
  > A loss of engine power for undetermined reasons.
- [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 WPR10LA003](https://openairdocs.org/ntsb/WPR10LA003.md): Mateskon Fisher DAK · Bozeman, MT · Accident · Minor injuries · Limited investigation · Final report · Oct 3, 2009 · N359JM · Substantial damage
  > A loss of engine power due to shearing of the crankshaft gear cluster bolts. Contributing to the accident was the lack of regular overhaul periods as recommended by the engine manufacturer.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '341' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/341/sequence?state=MT

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