# NTSB investigations: Engine controls, general

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 · 51 cases

## 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 WPR24LA117](https://openairdocs.org/ntsb/WPR24LA117.md): Piper PA-28-140 · Acton, CA · Accident · No injuries · Class 3 · Limited · Final report · Mar 23, 2024 · N1695H · Substantial damage
  > The pilots inability to fully turn off the carburetor heat which resulted in a reduction of engine power and reduced climb performance. Contributing to the accident was the pilots delayed recovery from the simulated emergency landing.
- [NTSB ERA24LA010](https://openairdocs.org/ntsb/ERA24LA010.md): Czech Aircraft Works Spol Sro Sportcruiser · Southport, NC · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 15, 2023 · N72FU · Substantial damage
  > The student pilot’s use of carburetor heat during takeoff, which resulted in a partial loss of engine power during initial climb due to an excessively rich fuel-air mixture.
- [NTSB CEN23FA077](https://openairdocs.org/ntsb/CEN23FA077.md): Cessna 150H · Auburn, NE · Accident · 2 fatal · Class 3 · Field · Final report · Jan 12, 2023 · N22859 · Substantial damage
  > The flight instructor’s failure to maintain control after a loss of engine power due to carburetor icing while maneuvering for forced landing in dark night visual meteorological conditions.
- [NTSB WPR23LA072](https://openairdocs.org/ntsb/WPR23LA072.md): Cessna 441 · Liberal, KS · Accident · No injuries · Class 4 · Limited · Final report · Dec 13, 2022 · N253SB · Substantial damage
  > The pilot’s inadequate preflight inspection, failure to set the parking brake, and his decision to exit the airplane with engines running to remove a wheel chock, resulting in the airplane’s unintended movement and subsequent collision with a hangar.
- [NTSB ERA22LA217](https://openairdocs.org/ntsb/ERA22LA217.md): Cessna 172N · Toms River, NJ · Accident · No injuries · Class 4 · Limited · Final report · May 1, 2022 · N737LY · Substantial damage
  > Loss of engine power due to the throttle linkage becoming disconnected in flight due to improper maintenance.
- [NTSB ERA22LA115](https://openairdocs.org/ntsb/ERA22LA115.md): Pilatus PC-12/47E · Ronkonkoma, NY · Accident · No injuries · Class 3 · Limited · Final report · Feb 2, 2022 · N357JK · Substantial damage
  > The pilot’s failure to properly position the power control lever before starting the engine as required per the checklist. Contributing to the accident were the ice on the ramp and the pilot’s failure to secure the engine using the condition lever.
- [NTSB ERA22LA016](https://openairdocs.org/ntsb/ERA22LA016.md): Kitfox IV · North Canaan, CT · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 14, 2021 · N9259M · Substantial damage
  > The pilot's mismanagement of the airplane's altitude, airspeed, and course during a forced landing following a partial loss of engine power, which resulted in collision with trees and terrain. Contributing was the pilot’s inadvertent omission of stowing the…
- [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 CEN19LA334](https://openairdocs.org/ntsb/CEN19LA334.md): Air Tractor AT802 · Columbus, MS · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 27, 2019 · N801BF · Substantial damage
  > A total loss of engine power control for undetermined reasons.
- [NTSB CEN19FA161](https://openairdocs.org/ntsb/CEN19FA161.md): Cessna 425 · Butler, MO · Accident · 1 fatal · Class 3 · Field · Final report · Jun 10, 2019 · N622MM · Destroyed
  > The pilot’s loss of airplane control during a descent to a diversion airport with only the left engine operating. Contributing to the accident was a malfunction of the right engine throttle, the cause of which could not be determined.
- [NTSB WPR18LA252](https://openairdocs.org/ntsb/WPR18LA252.md): Guimbal Cabri · Santa Ana, CA · Accident · No injuries · Class 3 · Limited · Final report · Sep 3, 2018 · N401SH · Substantial damage
  > The flight instructor's delayed application of power during a power recovery following an autorotation, which resulted in an unrecoverable low rotor rpm during the landing flare and subsequent loss of control.
- [NTSB ERA17LA247](https://openairdocs.org/ntsb/ERA17LA247.md): Aeroprakt A 20 Vista Cruiser · Shirley, NY · Accident · No injuries · Limited investigation · Final report · Jul 17, 2017 · N55US · Substantial damage
  > The pilot's inadvertent activation of the engine's choke control during a downdraft encounter, which resulted in a total loss of engine power.
- [NTSB WPR17LA093](https://openairdocs.org/ntsb/WPR17LA093.md): Schweizer 269C · Coolidge, AZ · Accident · Minor injuries · Limited investigation · Final report · Apr 27, 2017 · N521AR · Substantial damage
  > A partial loss of engine power due to separation of the throttle cable.
- [NTSB ERA14LA389](https://openairdocs.org/ntsb/ERA14LA389.md): Cessna T206H · Wiggins, MS · Accident · Minor injuries · Limited investigation · Final report · Aug 14, 2014 · N1229M · Substantial damage
  > A loosening of the engine throttle cable from its support clamp during flight, which resulted in a loss of throttle control.
- [NTSB ERA13CA208](https://openairdocs.org/ntsb/ERA13CA208.md): Cessna 140 · Lancaster, SC · Accident · No injuries · Data collection · Final report · Apr 18, 2013 · N76688 · Substantial damage
  > The pilot’s decision to land with a tailwind and his failure to turn off the carburetor heat during a go-around, which resulted in degraded engine performance and the airplane’s subsequent collision with trees at the end of the runway.
- [NTSB ERA13LA087](https://openairdocs.org/ntsb/ERA13LA087.md): Rotorway DB-1 · Mayland, TN · Accident · Minor injuries · Limited investigation · Final report · Dec 13, 2012 · N828X · Substantial damage
  > The pilot’s failure to maintain helicopter control following a high-side governor failure for reasons that could not be determined during postaccident examination.
- [NTSB ERA13LA056](https://openairdocs.org/ntsb/ERA13LA056.md): Piper PA-18-150 · Canton, GA · Accident · No injuries · Limited investigation · Final report · Nov 13, 2012 · N9764P · Substantial damage
  > A partial loss of engine power due to carburetor icing, which the pilot could not correct by applying carburetor heat because the movement of the carburetor heat control arm was restricted.
- [NTSB CEN12LA557](https://openairdocs.org/ntsb/CEN12LA557.md): Bell 47G-2 · Flandreau, SD · Accident · No injuries · Limited investigation · Final report · Aug 14, 2012 · N444EH · Substantial damage
  > A malfunction of the helicopter’s throttle system, which resulted in a loss of engine power during cruise flight.
- [NTSB CEN12LA497](https://openairdocs.org/ntsb/CEN12LA497.md): Grumman Acft ENG Cor-Schweizer G-164B · Big Springs, NE · Accident · No injuries · Limited investigation · Final report · Jul 30, 2012 · N6676Q · Substantial damage
  > The total loss of engine power as a result of the pilot inadvertently shutting the engine off. Contributing to the accident was the modification to the engine control layout.
- [NTSB ERA12LA227](https://openairdocs.org/ntsb/ERA12LA227.md): Emeraude CP-301-A · Niceville, FL · Accident · 2 fatal · Limited investigation · Final report · Mar 15, 2012 · N718PP · Substantial damage
  > The pilots’ inadequate use of carburetor heat, which resulted in carburetor icing and a subsequent loss of engine power.
- [NTSB ERA12CA179](https://openairdocs.org/ntsb/ERA12CA179.md): Robinson Helicopter R44 · N. Charleston, SC · Accident · No injuries · Data collection · Final report · Feb 13, 2012 · N5511L · Substantial damage
  > The flight instructor’s failure to apply power during a practice autorotation in order to arrest a high rate of descent, which resulted in an in-flight collision with terrain.
- [NTSB ERA12LA148](https://openairdocs.org/ntsb/ERA12LA148.md): Cessna 172I · Springfield, TN · Accident · No injuries · Limited investigation · Final report · Jan 19, 2012 · N35571 · Substantial damage
  > The pilot did not apply carburetor heat during approach to landing, which resulted in a total loss of engine power due to carburetor icing.
- [NTSB WPR12CA056](https://openairdocs.org/ntsb/WPR12CA056.md): Robinson Helicopter R22 Beta · Waipahu, HI · Accident · No injuries · Data collection · Final report · Dec 7, 2011 · N817AB · Substantial damage
  > The certified flight instructor's delayed remedial action and inadequate supervision during a practice autorotation. Contributing to the accident was the student pilot's excessive application of the throttle.
- [NTSB CEN12CA032](https://openairdocs.org/ntsb/CEN12CA032.md): Piper PA-28-235 · Radnor, OH · Accident · No injuries · Data collection · Final report · Oct 15, 2011 · N8746W · Substantial damage
  > The pilot's failure to properly secure the engine controls prior to manually rotating the propeller, which led to an inadvertent engine start and runaway airplane.
- [NTSB CEN11FA559](https://openairdocs.org/ntsb/CEN11FA559.md): Cessna 182C · Boulder, CO · Accident · Minor injuries · Field investigation · Final report · Aug 9, 2011 · N8717T · Substantial damage
  > The malfunction of the throttle linkage to the induction air box, which resulted in a loss of engine power and subsequent forced landing.
- [NTSB ERA11LA093](https://openairdocs.org/ntsb/ERA11LA093.md): Cessna 182 · West Milford, NJ · Accident · Serious injuries · Limited investigation · Final report · Dec 18, 2010 · N1462M · Substantial damage
  > The pilot's delayed application of carburetor heat while taking off in weather conditions conducive to serious carburetor icing, which resulted in a partial loss of engine power.
- [NTSB CEN11LA049](https://openairdocs.org/ntsb/CEN11LA049.md): Luscombe 8A · Schaumburg, IL · Accident · 1 fatal · Limited investigation · Final report · Nov 1, 2010 · N71823 · Substantial damage
  > The pilot did not maintain airspeed following a loss of engine power during takeoff climb, which resulted in an aerodynamic stall. Contributing to the accident was the loss of engine power due to the unlocked engine primer.
- [NTSB WPR10CA028](https://openairdocs.org/ntsb/WPR10CA028.md): Eurocopter AS 350 B3 · Marana, AZ · Accident · No injuries · Data collection · Final report · Oct 22, 2009 · N105LN · Substantial damage
  > The improper use of the throttle by the pilot receiving instruction, and the check pilot's inadequate supervision and delayed remedial action, which resulted in the collision with terrain.
- [NTSB CEN10LA002](https://openairdocs.org/ntsb/CEN10LA002.md): Piper J3C-65 · Rosemount, MN · Accident · Serious injuries · Limited investigation · Final report · Oct 3, 2009 · N70585 · Substantial damage
  > The pilot's delayed use of carburetor heat while operating in conditions conducive to carburetor icing.
- [NTSB CEN09LA576](https://openairdocs.org/ntsb/CEN09LA576.md): Cessna 170A · Grain Valley, MO · Accident · No injuries · Limited investigation · Final report · Sep 6, 2009 · N9129A · Substantial damage
  > A loss of engine power due to carburetor icing as a result of the pilot's failure to use carburetor heat.
- [NTSB CEN09CA560](https://openairdocs.org/ntsb/CEN09CA560.md): Piper PA-12 · Gonvick, MN · Accident · No injuries · Data collection · Final report · Aug 28, 2009 · N2409M · Substantial damage
  > A loss of engine power due to carburetor icing as a result of the pilot's failure to use carburetor heat.
- [NTSB ANC09LA086](https://openairdocs.org/ntsb/ANC09LA086.md): Cessna 180 · Chugiak, AK · Accident · Minor injuries · Limited investigation · Final report · Aug 25, 2009 · N4601A · Substantial damage
  > The pilot’s delayed use of carburetor heat while operating in conditions conducive to carburetor icing.
- [NTSB WPR09LA413](https://openairdocs.org/ntsb/WPR09LA413.md): Antares US MA-34R · San Jose, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 24, 2009 · N2356W · Substantial damage
  > The pilot's failure to maintain aircraft control during engine startup, which resulted in a collision with parked aircraft. Contributing to the accident was the engine's inadvertent increase to high power for undetermined reasons.
- [NTSB CEN09CA532](https://openairdocs.org/ntsb/CEN09CA532.md): Piper PA-28-161 · Washington, IA · Accident · Serious injuries · Data collection · Final report · Aug 16, 2009 · N47539 · Substantial damage
  > A loss of engine power due to carburetor icing as a result of the pilot's failure to use carburetor heat in conditions that were conducive to carburetor icing.
- [NTSB CEN09CA449](https://openairdocs.org/ntsb/CEN09CA449.md): Foglio Tiger CUB · Toronto, OH · Accident · No injuries · Data collection · Final report · Jul 18, 2009 · N312TC · Substantial damage
  > The pilot not turning off the carburetor heat prior to takeoff resulting in the engine's reduced performance, and his failure to remain clear of the tree during takeoff.
- [NTSB CEN09LA308](https://openairdocs.org/ntsb/CEN09LA308.md): Cessna 150L · Baton Rouge, LA · Accident · Minor injuries · Limited investigation · Final report · May 21, 2009 · N17214 · Substantial damage
  > The partial loss of engine power due to the instructor pilot's failure to use carburetor heat while operating in conditions conducive to carburetor icing. Contributing to the accident was the instructor pilot's decision to attempt a return to the departure…
- [NTSB CEN09CA253](https://openairdocs.org/ntsb/CEN09CA253.md): Cessna 172N · Roanoke, TX · Accident · No injuries · Data collection · Final report · May 8, 2009 · N172SV · Substantial damage
  > The partial loss of engine power due to a failure of the throttle control rod-end to carburetor arm hardware. A contributing factor was the pilot's decision to fly the airplane without a current annual inspection.
- [NTSB ANC09LA036](https://openairdocs.org/ntsb/ANC09LA036.md): Piper PA-24-180 · Chugiak, AK · Accident · No injuries · Limited investigation · Final report · Apr 28, 2009 · N7352P · Substantial damage
  > The flight instructor's inadequate supervision of the pilot during a simulated loss of engine power, and the pilot's failure to use carburetor heat while operating at a reduced engine power while in carburetor icing conditions.
- [NTSB ERA09FA248](https://openairdocs.org/ntsb/ERA09FA248.md): Cessna 421B · Oakland Park, FL · Accident · 1 fatal · Field investigation · Final report · Apr 17, 2009 · N1935G · Substantial damage
  > The pilot's failure to maintain aircraft control and secure the right engine during an emergency return to the airport after takeoff. Contributing to the accident was an in-flight fire of the right engine for undetermined reasons.
- [NTSB WPR09LA161](https://openairdocs.org/ntsb/WPR09LA161.md): Brown Barnett J4B · Sheridan, CA · Accident · No injuries · Limited investigation · Final report · Mar 20, 2009 · N35JB · Substantial damage
  > A loss of engine power due to carburetor icing as a result of the pilot's failure to use carburetor heat.
- [NTSB WPR09LA117](https://openairdocs.org/ntsb/WPR09LA117.md): Cessna 152 · Turlock, CA · Accident · Minor injuries · Limited investigation · Final report · Feb 18, 2009 · N48761 · Substantial damage
  > The loss of engine power due to carburetor icing resulting from the pilot's failure to apply carburetor heat. Contributing to the accident was the instructor's inadequate supervision of the flight.
- [NTSB WPR09FA060](https://openairdocs.org/ntsb/WPR09FA060.md): Piper PA-28-140 · Kapolei, HI · Accident · Serious injuries · Field investigation · Final report · Dec 19, 2008 · N6182J · Substantial damage
  > The partial loss of engine power during the initial climb due to the failure of both pilots to use carburetor heat during a long descent for landing in carburetor icing conditions, and, the flight instructor's inadequate supervision of the flight.
- [NTSB ERA09LA098](https://openairdocs.org/ntsb/ERA09LA098.md): Hess John L Spezio II · Newville, PA · Accident · Minor injuries · Limited investigation · Final report · Dec 18, 2008 · N66JH · Substantial damage
  > A loss of engine power due to carburetor ice as a result of the pilot's delayed use of carburetor heat.
- [NTSB ERA09LA021](https://openairdocs.org/ntsb/ERA09LA021.md): Steele John J Acro Sport · Madison, NH · Accident · No injuries · Limited investigation · Final report · Oct 15, 2008 · N896JC · Substantial damage
  > The loss of engine power due to carburetor icing as a result of the pilot's failure to apply carburetor heat
- [NTSB ERA09FA005](https://openairdocs.org/ntsb/ERA09FA005.md): Czech Aircraft Works Spol Sro Sportcruiser · Swainsboro, GA · Accident · Minor injuries · Field investigation · Final report · Oct 5, 2008 · N742EA · Substantial damage
  > A loss of engine power due to carburetor icing as a result of the pilot's failure to use carburetor heat.
- [NTSB LAX08CA295](https://openairdocs.org/ntsb/LAX08CA295.md): Miltenberger Family Fun · Adin, CA · Accident · Minor injuries · Data collection · Final report · Sep 10, 2008 · N903PD · Substantial damage
  > The loss of engine power due to carburetor icing and the pilot's failure to use carburetor heat.
- [NTSB ANC08CA121](https://openairdocs.org/ntsb/ANC08CA121.md): Cessna 170 · Ruby, AK · Accident · No injuries · Data collection · Final report · Sep 9, 2008 · N2690V · Substantial damage
  > The pilot's failure to use carburetor heat, while operating at a reduced engine power while maneuvering in carburetor icing conditions.
- [NTSB SEA08FA185](https://openairdocs.org/ntsb/SEA08FA185.md): Robinson Helicopter R22 Beta II · Olalla, WA · Accident · 1 fatal · Field investigation · Final report · Aug 17, 2008 · N301MA · Destroyed
  > The complete loss of engine power due to the accumulation of ice in the carburetor as a result of the pilot's failure to use carburetor heat.
- [NTSB LAX08LA221](https://openairdocs.org/ntsb/LAX08LA221.md): Cessna 172RG · Moorpark, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 2008 · N9627B · Substantial damage
  > A partial loss of engine power due to the disconnection of the throttle control cable from the throttle arm due to the operator's improper maintenance. Contributing to the accident was unsuitable terrain for a forced landing.

Next page: https://openairdocs.org/ntsb-findings/01057600/cases.md?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."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01057600'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01057600/cases

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