# NTSB investigations, OR: Aircraft power plant

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 WPR26LA049](https://openairdocs.org/ntsb/WPR26LA049.md): Zenair Stol CH 701 · Shady Cove, OR · Accident · Minor injuries · Class 4 · Limited · Final report · Nov 20, 2025 · N43AH · Substantial damage
  > The pilot’s improper throttle input during an approach, which resulted in a rapid descent, hard landing and runway excursion.
- [NTSB WPR25LA010](https://openairdocs.org/ntsb/WPR25LA010.md): Enstrom Helicopter 280C · Vale, OR · Accident · No injuries · Class 4 · Limited · Final report · Oct 9, 2024 · N646H · Substantial damage
  > The pilot’s failure to maintain engine and rotor rpm during takeoff, that resulted in a hard landing.
- [NTSB WPR24LA294](https://openairdocs.org/ntsb/WPR24LA294.md): Luscombe 8 · Bend, OR · Accident · No injuries · Class 4 · Limited · Final report · Aug 30, 2024 · N71899 · Substantial damage
  > A failure of the left fuel valve, which resulted in fuel exhaustion and a total loss of engine power.
- [NTSB WPR23LA184](https://openairdocs.org/ntsb/WPR23LA184.md): Rans S-21 · Creswell, OR · Accident · No injuries · Class 3 · Limited · Final report · May 10, 2023 · N468MM · Substantial damage
  > A total loss of engine power caused by fatigue cracking and fracture of the crankshaft due to severe wear of the bearings.
- [NTSB WPR22LA330](https://openairdocs.org/ntsb/WPR22LA330.md): Sikorsky S-61N · Shady Cove, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 1, 2022 · N617CK · Substantial damage
  > A total loss of engine power due to the failure of the No. 2 engine’s stage 1 turbine blades as a result of an unreported hot start two days earlier.
- [NTSB WPR22LA193](https://openairdocs.org/ntsb/WPR22LA193.md): Vans RV-8 · Galice, OR · Accident · No injuries · Class 3 · Limited · Final report · May 31, 2022 · N298DM · Substantial damage
  > The in-flight failure of the crankshaft gear’s alignment dowel as a result of the retaining bolt not being installed, which lead to a total loss of engine power.
- [NTSB WPR22LA177](https://openairdocs.org/ntsb/WPR22LA177.md): Piper PA-12 · Enterprise, OR · Accident · No injuries · Class 3 · Limited · Final report · May 14, 2022 · N3960M · Substantial damage
  > The inadequate maintenance and inspection of the crankshaft expansion plug, which resulted in the separation of the expansion plug from the crankshaft and the subsequent loss of oil and windshield obstruction during departure.
- [NTSB WPR22LA060](https://openairdocs.org/ntsb/WPR22LA060.md): Cessna P210N · Hillsboro, OR · Accident · No injuries · Class 3 · Limited · Final report · Dec 9, 2021 · N152BT · Substantial damage
  > The on-ground collision with a tree during an off airport precautionary landing. Contributing was the partial loss of engine power for undetermined reasons.
- [NTSB WPR22LA019](https://openairdocs.org/ntsb/WPR22LA019.md): Lancair ES · Fall Creek, OR · Accident · No injuries · Class 3 · Limited · Final report · Oct 15, 2021 · N511ZZ · Substantial damage
  > Total loss of engine power due to fatigue failure of the camshaft gear.
- [NTSB WPR21LA250](https://openairdocs.org/ntsb/WPR21LA250.md): L-Bird CCX-2000 · Hood River, OR · Accident · No injuries · Class 3 · Limited · Final report · Jun 28, 2021 · N10TA · Substantial damage
  > The total loss of engine power due to improper construction of the muffler, which resulted in separation of the internal components.
- [NTSB WPR21LA094](https://openairdocs.org/ntsb/WPR21LA094.md): Randy Wayne Maloney M1 · Eagle Point, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Jan 21, 2021 · N322TR · Destroyed
  > A partial loss of engine power for reasons that could not be determined based on available evidence.
- [NTSB WPR21LA008](https://openairdocs.org/ntsb/WPR21LA008.md): Cessna 180 · Princeton, OR · Accident · No injuries · Class 3 · Limited · Final report · Oct 2, 2020 · N8678X · Substantial damage
  > The pilot’s failure to enrichen the mixture, which resulted in a partial loss of engine power.
- [NTSB WPR20LA309](https://openairdocs.org/ntsb/WPR20LA309.md): Bird CK · Enterprise, OR · Accident · No injuries · Class 4 · Limited · Final report · Sep 11, 2020 · N933V · Substantial damage
  > The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and collision with terrain.
- [NTSB WPR20LA097](https://openairdocs.org/ntsb/WPR20LA097.md): Cessna 170 · Baker City, OR · Accident · No injuries · Class 3 · Limited · Final report · Feb 27, 2020 · N5478C · Substantial damage
  > The failure of the No. 2 connecting rod bearing as a result of oil starvation due to a contaminated oil filter screen.
- [NTSB WPR20FA016](https://openairdocs.org/ntsb/WPR20FA016.md): Enstrom 280F · Jordan Valley, OR · Accident · 1 fatal · Class 3 · Field · Final report · Oct 25, 2019 · N280F · Substantial damage
  > A partial loss of engine power due to a worn engine air induction hose, and a subsequent uncontrolled descent into terrain. Contributing to the accident was the failure of maintenance personnel to adequately inspect the hose, and the pilot’s decision to fly…
- [NTSB WPR19LA217](https://openairdocs.org/ntsb/WPR19LA217.md): Cessna 206 · Prospect, OR · Accident · No injuries · Class 3 · Limited · Final report · Aug 10, 2019 · N5152U · Substantial damage
  > The failure of the counterweight retainer pin plate which resulted in a total loss of engine power.
- [NTSB WPR19FA215](https://openairdocs.org/ntsb/WPR19FA215.md): North American T28A · Ontario, OR · Accident · 1 fatal · Class 3 · Field · Final report · Aug 9, 2019 · N9862C · Substantial damage
  > A total loss of engine power due to the improperly adjusted carburetor idle valve.
- [NTSB WPR19LA198](https://openairdocs.org/ntsb/WPR19LA198.md): Cessna 172 · Madras, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 22, 2019 · N3761L · Substantial damage
  > A partial loss of power during final approach for undetermined reasons as postaccident examinations did not reveal any preimpact anomalies with the airplane or engine.
- [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 WPR19FA178](https://openairdocs.org/ntsb/WPR19FA178.md): Maule M7-235B · Sunriver, OR · Accident · 1 fatal · Class 2 · Field · Final report · Jun 22, 2019 · N118G · Substantial damage
  > A partial loss of engine power due to the separation of baffling in both mufflers. Contributing to the accident was the pilot's failure to retract the landing gear on the float-equipped airplane before performing a forced landing to the river.
- [NTSB WPR19LA122](https://openairdocs.org/ntsb/WPR19LA122.md): Bell 206 · Oakridge, OR · Accident · No injuries · Class 3 · Limited · Final report · Apr 26, 2019 · N206JH · Substantial damage
  > A total loss of engine power following the failure of a 3rd stage turbine blade due to low- and high-cycle fatigue.
- [NTSB WPR18LA193](https://openairdocs.org/ntsb/WPR18LA193.md): Cessna 150 · Ontario, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 12, 2018 · N6908G · Destroyed
  > A total loss of engine power during final approach for reasons that could not be determined based on the available information.
- [NTSB WPR18LA148](https://openairdocs.org/ntsb/WPR18LA148.md): Cessna 152 · Hillsboro, OR · Accident · No injuries · Class 3 · Limited · Final report · May 26, 2018 · N152GB · Substantial damage
  > The partial loss of engine power during a go-around due to the loose copper electrode finger inside the left magneto.
- [NTSB WPR18LA111](https://openairdocs.org/ntsb/WPR18LA111.md): Pflugradt Kitfox · Clatskanie, OR · Accident · No injuries · Limited investigation · Final report · Mar 20, 2018 · N925DP · Substantial damage
  > A partial loss of engine power due to an improperly secured throttle cable set screw.
- [NTSB WPR15LA248](https://openairdocs.org/ntsb/WPR15LA248.md): Sikorsky S 61A · Ironside, OR · Accident · Minor injuries · Limited investigation · Final report · Aug 20, 2015 · N1043T · Substantial damage
  > A loss of power to the No. 2 engine due to the failure of the accessory gearbox drivetrain. Also causal was the pilot’s inability to release the external longline due to the use of a safety wire across the coupling of the quick-disconnect mechanism, which…
- [NTSB WPR15LA155](https://openairdocs.org/ntsb/WPR15LA155.md): Cessna 140 · Crescent Lake, OR · Accident · Minor injuries · Limited investigation · Final report · May 1, 2015 · N2514N · Substantial damage
  > The pilot's improper fuel management, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's inability to restart the engine for reasons that could not be determined because postaccident examination…
- [NTSB WPR15LA032](https://openairdocs.org/ntsb/WPR15LA032.md): Cessna T210M · Jacksonville, OR · Accident · Minor injuries · Limited investigation · Final report · Nov 2, 2014 · N1593M · Substantial damage
  > A loss of engine power during cruise flight due to the failure of the No. 6 connecting rod, which resulted from oil starvation.
- [NTSB WPR14LA055](https://openairdocs.org/ntsb/WPR14LA055.md): Richard S Duncan Avid Flyer · Lakeside, OR · Accident · Serious injuries · Limited investigation · Final report · Nov 17, 2013 · N1445P · Substantial damage
  > The pilot/owner’s failure to comply with the engine manufacturer’s maintenance guidance, which resulted in the total loss of engine power due to the fracture failure of the plastic drive gear for the engine lubricating oil pump.
- [NTSB WPR13GA374](https://openairdocs.org/ntsb/WPR13GA374.md): Mcdonnell Douglas Helicopter 369E · Burns, OR · Accident · No injuries · Final report · Aug 12, 2013 · N62PJ · Substantial damage
  > The total loss of engine power during cruise flight due to the separation of one of the 4th-stage turbine wheel blades due to low-cycle fatigue cracking that had progressed to high-cycle fatigue cracking, which ultimately led to the overload failure of the…
- [NTSB WPR13LA363](https://openairdocs.org/ntsb/WPR13LA363.md): Quarnoccio Avid Flyer · White City, OR · Accident · No injuries · Limited investigation · Final report · Jul 13, 2013 · N399Q · Substantial damage
  > Excessive engine operating temperature, which resulted in engine failure and a forced landing. The reason for the excessive engine operating temperature could not be determined during postaccident engine examination.
- [NTSB ENG12IA012](https://openairdocs.org/ntsb/ENG12IA012.md): Mcdonnell Douglas MD-10-30F · Portland, OR · Incident · No injuries · Incident investigation · Final report · Feb 13, 2012 · N304FE · Minor damage
  > The fracture of the fan mid shaft due to a stress corrosion cracking initiated by local regions of corrosion pitting, which resulted from oil migration within the shaft and its subsequent degradation.
- [NTSB WPR11LA290](https://openairdocs.org/ntsb/WPR11LA290.md): Christen Industries Pitts S-1T · Alkali Lake, OR · Accident · Minor injuries · Limited investigation · Final report · Jun 26, 2011 · N77MN · Substantial damage
  > The loss of engine oil during cruise flight due to the failure of the front bearing oil seal.
- [NTSB WPR11CA489](https://openairdocs.org/ntsb/WPR11CA489.md): Cessna 172C · Grants Pass, OR · Accident · No injuries · Data collection · Final report · May 7, 2011 · N8287X · Substantial damage
  > The student pilot's failure to maintain an adequate airspeed on approach, which resulted in a hard landing.
- [NTSB WPR10LA424](https://openairdocs.org/ntsb/WPR10LA424.md): Grumman American Avn. AA-5A · Lakeview, OR · Accident · No injuries · Limited investigation · Final report · Aug 22, 2010 · N26118 · Substantial damage
  > A partial loss of engine power during the initial climb due to a stuck exhaust valve.
- [NTSB WPR10LA419](https://openairdocs.org/ntsb/WPR10LA419.md): Hummel / Finberg Ultra Cruiser · Canby, OR · Accident · No injuries · Limited investigation · Final report · Aug 21, 2010 · N524DF · Substantial damage
  > The loss of engine power due to low cylinder compression.
- [NTSB WPR10LA298](https://openairdocs.org/ntsb/WPR10LA298.md): Robinson Helicopter R22 Beta · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · Jun 19, 2010 · N2548S · Substantial damage
  > A partial loss of engine power while on approach for undetermined reasons.
- [NTSB WPR10CA238](https://openairdocs.org/ntsb/WPR10CA238.md): Cessna 172S · Corvallis, OR · Accident · No injuries · Data collection · Final report · May 13, 2010 · N66083 · Substantial damage
  > The pilot's improper use of the flight and engine controls, resulting in a bounced landing.
- [NTSB WPR10LA168](https://openairdocs.org/ntsb/WPR10LA168.md): Cessna 150F · Tillamook, OR · Accident · No injuries · Limited investigation · Final report · Mar 17, 2010 · N7854F · Substantial damage
  > The partial loss of engine power during climb to cruise due to carburetor icing and the pilot's delay in using carburetor heat.
- [NTSB WPR09LA446](https://openairdocs.org/ntsb/WPR09LA446.md): Grumman American Avn. AA-1B · Creswell, OR · Accident · Minor injuries · Limited investigation · Final report · Sep 12, 2009 · N9682L · Substantial damage
  > A partial loss of engine power due to the malfunction of the engine's right magneto.
- [NTSB WPR09LA361](https://openairdocs.org/ntsb/WPR09LA361.md): Piper PA-46-350P · Redmond, OR · Accident · No injuries · Limited investigation · Final report · Jul 21, 2009 · N117KR · Substantial damage
  > An undetermined hydraulic system malfunction in the engine compartment during descent from cruise flight which resulted in an in-flight fire.
- [NTSB WPR09LA219](https://openairdocs.org/ntsb/WPR09LA219.md): Ellumax Leasing Epic LT · Astoria, OR · Accident · No injuries · Limited investigation · Final report · Apr 24, 2009 · N653SB · Substantial damage
  > The partial loss of engine power during climb to cruise due to the failure of the engine's fuel control unit. Contributing to the accident was the incorrect machining of an internal component of the fuel control unit, and the failure of the assembling…
- [NTSB WPR09LA013](https://openairdocs.org/ntsb/WPR09LA013.md): Piper PA-31-350 · Portland, OR · Accident · No injuries · Limited investigation · Final report · Oct 14, 2008 · N3BT · Substantial damage
  > An in-flight engine fire due to the fatigue fracture of an exhaust pipe that resulted from a failure of the pipe's slip joint.
- [NTSB SEA08LA193](https://openairdocs.org/ntsb/SEA08LA193.md): Wasson Loehle Loehle P-40 · Oregon City, OR · Accident · Serious injuries · Limited investigation · Final report · Aug 31, 2008 · N510JW · Substantial damage
  > The loss of total engine power due to a cold seizure.
- [NTSB SEA08LA156](https://openairdocs.org/ntsb/SEA08LA156.md): Cessna TR182 · Bend, OR · Accident · Serious injuries · Limited investigation · Final report · Jun 30, 2008 · N7XZ · Substantial damage
  > The failure of the crankshaft during cruise flight due to fatigue.
- [NTSB LAX08LA168](https://openairdocs.org/ntsb/LAX08LA168.md): Mkii Lancair Legacy 2000 · Bend, OR · Accident · No injuries · Limited investigation · Final report · Jun 9, 2008 · N199L · Substantial damage
  > A total loss of engine power due to the fatigue failure of the Number 3 cylinder connecting rod.
- [NTSB LAX08CA143](https://openairdocs.org/ntsb/LAX08CA143.md): Mason RV-9A · Pacific City, OR · Accident · No injuries · Data collection · Final report · May 17, 2008 · N486EM · Substantial damage
  > The pilot's inadequate flare and failure to maintain control following a hard landing. Contributing to the accident was a temporary partial loss of power due to carburetor icing conditions.

## 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" = 'OR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '0105'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/0105/cases?state=OR

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