# Powerplant parameters

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft oper/perf/capability](https://openairdocs.org/ntsb-findings/0106) › [Performance/control parameters](https://openairdocs.org/ntsb-findings/010620) › Powerplant parameters
- NTSB code: 01062050
- Cases: 81
- In the probable cause: 75
- Fatal cases: 15
- All cases: https://openairdocs.org/ntsb-findings/01062050/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01062050/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01062050

## Cases per year (in the probable cause / all)

- 2008: 1 / 1
- 2009: 2 / 3
- 2010: 5 / 5
- 2011: 1 / 2
- 2012: 1 / 1
- 2013: 5 / 5
- 2014: 6 / 6
- 2015: 2 / 2
- 2016: 5 / 7
- 2017: 2 / 4
- 2018: 1 / 1
- 2019: 3 / 3
- 2020: 4 / 4
- 2021: 2 / 2
- 2022: 5 / 5
- 2023: 11 / 11
- 2024: 13 / 13
- 2025: 4 / 4
- 2026: 2 / 2

## Defining events in these cases

- [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 15 cases
- [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 11 cases
- [Hard landing](https://openairdocs.org/ntsb-events/092): 8 cases
- [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 6 cases
- [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 5 cases
- [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 5 cases
- [Runway excursion](https://openairdocs.org/ntsb-events/300): 4 cases
- [Landing area undershoot](https://openairdocs.org/ntsb-events/370): 3 cases
- [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 3 cases
- [Unknown or undetermined](https://openairdocs.org/ntsb-events/000): 3 cases

## Aircraft models (registry)

- [Schweizer 269C](https://openairdocs.org/model/schweizer-269c): 4 cases
- [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 4 cases
- [Mooney M20K](https://openairdocs.org/model/mooney-m20k): 2 cases
- [Eurocopter AS 350 B2](https://openairdocs.org/model/eurocopter-as-350-b2): 1 cases
- [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r): 1 cases
- [Raytheon 390](https://openairdocs.org/model/raytheon-390): 1 cases
- [Piper PA 46-350P](https://openairdocs.org/model/piper-pa-46-350p): 1 cases
- [Piper PA-32R-301T](https://openairdocs.org/model/piper-pa-32r-301t): 1 cases
- [Piper PA-32-300](https://openairdocs.org/model/piper-pa-32-300): 1 cases
- [Piper PA-31P](https://openairdocs.org/model/piper-pa-31p): 1 cases

## Other findings in the same cases

- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 29 cases
- [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 14 cases
- [Incorrect action performance](https://openairdocs.org/ntsb-findings/02041015) (Personnel issues): 9 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 8 cases
- [Delayed action](https://openairdocs.org/ntsb-findings/02041025) (Personnel issues): 8 cases
- [Prop/rotor parameters](https://openairdocs.org/ntsb-findings/01062052) (Aircraft): 7 cases
- [Airspeed](https://openairdocs.org/ntsb-findings/01062010) (Aircraft): 7 cases
- [Identification/recognition](https://openairdocs.org/ntsb-findings/02041510) (Personnel issues): 6 cases
- [Directional control](https://openairdocs.org/ntsb-findings/01062020) (Aircraft): 6 cases
- [Tree(s)](https://openairdocs.org/ntsb-findings/03022020) (Environmental issues): 5 cases

## Newest cases

- [NTSB CEN26LA168](https://openairdocs.org/ntsb/CEN26LA168), Apr 17, 2026: Robinson Helicopter R44 (N445JS), Mount Blanco, TX, substantial damage. Probable cause: The pilot’s failure to maintain proper main rotor rpm during a low-level turn, which resulted in the main rotor rpm drooping, a loss of control at an altitude too low for recovery, and a subsequent…
- [NTSB WPR26LA104](https://openairdocs.org/ntsb/WPR26LA104), Feb 16, 2026: Aerosport Ikarus C42E (N420MS), Wendover, UT, substantial damage. Probable cause: The pilot’s mismanagement of engine power during a maximum performance, 180° climbing left turn at a low altitude that resulted in impact with terrain.
- [NTSB WPR26LA009](https://openairdocs.org/ntsb/WPR26LA009), Oct 7, 2025: Mooney M20C (N6814N), Watsonville, CA, substantial damage. Probable cause: The pilot’s decision to program avionics during taxi, resulting in an inadvertent throttle input and collision with a hangar.
- [NTSB WPR26LA007](https://openairdocs.org/ntsb/WPR26LA007), Oct 6, 2025: Piper PA-30 (N8678Y), Gila Bend, AZ, substantial damage. Probable cause: The pilot’s improper throttle input and failure to maintain aircraft control during landing.
- [NTSB ERA25LA235](https://openairdocs.org/ntsb/ERA25LA235), Jun 23, 2025: Cessna R182 (N262AL), Milton, FL, substantial damage. Probable cause: Separation of the throttle cable sleeve during takeoff, which resulted an uncommanded engine power reduction and the pilot’s inability to control the engine throttle, and resulted in a forced landing.
- [NTSB ERA25LA142](https://openairdocs.org/ntsb/ERA25LA142), Mar 12, 2025: Cessna TU206G (N27GP), Wedgefield, FL, substantial damage. Probable cause: A total loss of engine power as a result of an excessively rich fuel-to-air ratio due to the pilot’s failure to properly lean the engine’s fuel air mixture and the inadvertent activation of the…
- [NTSB CEN25LA084](https://openairdocs.org/ntsb/CEN25LA084), Nov 11, 2024: Bell Helicopter Textron Canada 505 (N1243Y), Lago Vista, TX, substantial damage. Probable cause: The flight instructor’s improper recovery from a practice autorotation which resulted in a hard landing.
- [NTSB CEN25LA021](https://openairdocs.org/ntsb/CEN25LA021), Oct 17, 2024: Mooney M20K (N231MW), Elizabeth, LA, substantial damage. Probable cause: The pilot’s failure to set the engine fuel mixture to the required setting, which resulted in reduced engine power during a go-around and subsequent impact with trees. Contributing to the accident,…
- [NTSB WPR25LA006](https://openairdocs.org/ntsb/WPR25LA006), Oct 8, 2024: Agustawestland AW109SP (N631HC), Kamas, UT, substantial damage. Probable cause: The pilot’s exceedance of the helicopter’s available power while landing in a confined area, which resulted in a loss of tail rotor effectiveness and a hard landing.
- [NTSB CEN25LA003](https://openairdocs.org/ntsb/CEN25LA003), Oct 3, 2024: Schweizer 269C (N656RB), Montrose, CO, substantial damage. Probable cause: A loss of engine power during a demonstrated autorotation due to an improperly adjusted air-fuel mixture or idle setting. Contributing to the accident was the pilot’s failure to perform the required…

NTSB has coded findings and defining events since 2008; earlier cases used its older occurrence and cause codes and aren't counted.

Findings: https://openairdocs.org/ntsb-findings.md. Defining events: https://openairdocs.org/ntsb-events.md. Phases of flight: https://openairdocs.org/ntsb-phases.md. Every investigation, filtered by finding, event, phase, state, year or model: https://openairdocs.org/ntsb.md (for example ?state=MI&fatal=1).

NTSB's definitions: Accident and incident, 49 CFR 830.2 (https://www.ecfr.gov/current/title-49/subtitle-B/chapter-VIII/part-830/subpart-A/section-830.2), CICTT occurrence categories (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/OccurrenceCategoryDefinitions.pdf), CICTT phases of flight (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/PhaseofFlightDefinitions.pdf), and NTSB coding manual, before 2008 (PDF) (https://www.ntsb.gov/GILS/Documents/codman.pdf). NTSB publishes no definitions for its findings, only their names.

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