# Performance/control parameters, general - 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) › Performance/control parameters, general - NTSB code: 01062000 - Cases: 1269 - In the probable cause: 1227 - Fatal cases: 591 - All cases: https://openairdocs.org/ntsb-findings/01062000/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01062000/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01062000 ## Cases per year (in the probable cause / all) - 2008: 92 / 101 - 2009: 154 / 160 - 2010: 79 / 86 - 2011: 100 / 103 - 2012: 79 / 81 - 2013: 98 / 99 - 2014: 103 / 104 - 2015: 68 / 68 - 2016: 50 / 50 - 2017: 63 / 63 - 2018: 64 / 64 - 2019: 59 / 59 - 2020: 46 / 48 - 2021: 26 / 27 - 2022: 39 / 41 - 2023: 41 / 44 - 2024: 42 / 45 - 2025: 16 / 17 - 2026: 8 / 9 ## Defining events in these cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 627 cases - [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 133 cases - [VFR encounter with IMC](https://openairdocs.org/ntsb-events/401): 56 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 54 cases - [Hard landing](https://openairdocs.org/ntsb-events/092): 39 cases - [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 30 cases - [Unknown or undetermined](https://openairdocs.org/ntsb-events/000): 24 cases - [Abnormal runway contact](https://openairdocs.org/ntsb-events/090): 23 cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 21 cases - [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 18 cases ## Aircraft models (registry) - [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 25 cases - [Cessna 172S](https://openairdocs.org/model/cessna-172s): 21 cases - [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta): 20 cases - [Cirrus Design SR22](https://openairdocs.org/model/cirrus-design-sr22): 15 cases - [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150): 14 cases - [Cessna 152](https://openairdocs.org/model/cessna-152): 13 cases - [Beech A36](https://openairdocs.org/model/beech-a36): 11 cases - [Cessna 172M](https://openairdocs.org/model/cessna-172m): 10 cases - [Bell 206B](https://openairdocs.org/model/bell-206b): 10 cases - [Cessna 172P](https://openairdocs.org/model/cessna-172p): 9 cases ## Other findings in the same cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 856 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 242 cases - [Spatial disorientation](https://openairdocs.org/ntsb-findings/02022025) (Personnel issues): 120 cases - [Gusts](https://openairdocs.org/ntsb-findings/03034045) (Environmental issues): 113 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 109 cases - [Dark](https://openairdocs.org/ntsb-findings/03036020) (Environmental issues): 59 cases - [Qualification/certification](https://openairdocs.org/ntsb-findings/02031010) (Personnel issues): 48 cases - [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 46 cases - [Incorrect action performance](https://openairdocs.org/ntsb-findings/02041015) (Personnel issues): 45 cases - [Delayed action](https://openairdocs.org/ntsb-findings/02041025) (Personnel issues): 43 cases ## Newest cases - [NTSB CEN26LA214](https://openairdocs.org/ntsb/CEN26LA214), May 28, 2026: Cessna 182 (N2056X), Dickinson, ND, substantial damage. Probable cause: The pilot’s failure to maintain aircraft control during landing in gusting wind conditions which resulted in a hard landing. - [NTSB CEN26LA203](https://openairdocs.org/ntsb/CEN26LA203), May 27, 2026: Robinson Helicopter R66 (N5488H), Fort Worth, TX, substantial damage. Probable cause: The flight instructor’s delayed remedial action and the student pilot’s failure to maintain helicopter control during hover. - [NTSB CEN26LA177](https://openairdocs.org/ntsb/CEN26LA177), May 5, 2026: Air Tractor AT-602 (N422TW), El Campo, TX, destroyed. Probable cause: The pilot’s failure to maintain aircraft control during takeoff resulting in a collision with a building during takeoff. - [NTSB WPR26LA156](https://openairdocs.org/ntsb/WPR26LA156), Apr 10, 2026: Marshall Daniel R L-21 (N453HC), Cody, WY, substantial damage. Probable cause: The pilot's failure to maintain control of the airplane during the landing rollout, which resulted in a nose-over. - [NTSB WPR26LA112](https://openairdocs.org/ntsb/WPR26LA112), Mar 1, 2026: Beech 76 (N1850N), Snohomish, WA, substantial damage. Probable cause: The flight instructor’s inadequate supervision of a dual student who attempted a go-around using one engine which resulted in a loss of control and impact with the ground. - [NTSB ERA26LA122](https://openairdocs.org/ntsb/ERA26LA122), Feb 21, 2026: Hughes 269A (N1020S), Gettysburg, PA, substantial damage. Probable cause: The flight instructor’s failure to identify the excess power required to lift off from soft and muddy ground, which resulted in a loss of control and subsequent collision with a hangar during takeoff. - [NTSB CEN26LA112](https://openairdocs.org/ntsb/CEN26LA112), Feb 5, 2026: Socata TBM 700 (N313BP), Crockett, TX, destroyed. Probable cause: The pilot’s failure to maintain airplane control during a go-around that resulted in a collision with terrain. - [NTSB CEN26LA104](https://openairdocs.org/ntsb/CEN26LA104), Jan 31, 2026: Textron 172S (N767VK), Augusta, KS, substantial damage. Probable cause: The student pilot’s failure to maintain control during the takeoff. - [NTSB CEN26LA083](https://openairdocs.org/ntsb/CEN26LA083), Jan 5, 2026: Cessna 150 (N101FA), Round Lake Park, IL, substantial damage. Probable cause: The student pilot’s failure to maintain directional control during a soft-field takeoff and the flight instructor’s delayed remedial action. - [NTSB CEN26LA067](https://openairdocs.org/ntsb/CEN26LA067), Dec 16, 2025: Mark O Treidel American Ranger AR-1 (N529MW), Denver, CO, substantial damage. Probable cause: The pilot’s failure to attain rotor RPM and maintain proper rotor disc angle during takeoff which resulted in a rotor strike with the rudder. 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. --- 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.