# Landing gear system - Type: NTSB finding section - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › Landing gear system - NTSB code: 010232 - Cases: 1783 - In the probable cause: 1579 - Fatal cases: 33 - All cases: https://openairdocs.org/ntsb-findings/010232/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/010232/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/010232 ## Cases per year (in the probable cause / all) - 2008: 108 / 155 - 2009: 95 / 109 - 2010: 91 / 106 - 2011: 100 / 112 - 2012: 111 / 125 - 2013: 81 / 97 - 2014: 62 / 69 - 2015: 69 / 74 - 2016: 81 / 91 - 2017: 78 / 83 - 2018: 97 / 106 - 2019: 97 / 102 - 2020: 70 / 75 - 2021: 78 / 84 - 2022: 72 / 80 - 2023: 79 / 89 - 2024: 85 / 94 - 2025: 90 / 96 - 2026: 35 / 36 ## Findings - [Gear extension and retract sys](https://openairdocs.org/ntsb-findings/01023230): 416 cases, 395 in the probable cause - [Brake](https://openairdocs.org/ntsb-findings/01023242): 297 cases, 271 in the probable cause - [Main landing gear](https://openairdocs.org/ntsb-findings/01023210): 241 cases, 189 in the probable cause - [Nose/tail landing gear](https://openairdocs.org/ntsb-findings/01023220): 185 cases, 143 in the probable cause - [Landing gear system, general](https://openairdocs.org/ntsb-findings/01023200): 113 cases, 91 in the probable cause - [Landing gear brakes system](https://openairdocs.org/ntsb-findings/01023240): 92 cases, 86 in the probable cause - [Main gear strut/axle/truck](https://openairdocs.org/ntsb-findings/01023213): 86 cases, 77 in the probable cause - [Main landing gear attach sec](https://openairdocs.org/ntsb-findings/01023211): 66 cases, 59 in the probable cause - [Landing gear actuator](https://openairdocs.org/ntsb-findings/01023233): 54 cases, 53 in the probable cause - [Landing gear selector](https://openairdocs.org/ntsb-findings/01023234): 54 cases, 54 in the probable cause - [Wheel/ski/float](https://openairdocs.org/ntsb-findings/01023246): 48 cases, 41 in the probable cause - [Gear position and warning](https://openairdocs.org/ntsb-findings/01023260): 37 cases, 24 in the probable cause - [Nose/tail gear strut/axle](https://openairdocs.org/ntsb-findings/01023222): 36 cases, 32 in the probable cause - [Tire casing](https://openairdocs.org/ntsb-findings/01023244): 36 cases, 28 in the probable cause - [Landing gear steering system](https://openairdocs.org/ntsb-findings/01023250): 32 cases, 29 in the probable cause - [Nose/tail gear attach section](https://openairdocs.org/ntsb-findings/01023221): 29 cases, 25 in the probable cause - [Master cylinder/brake valve](https://openairdocs.org/ntsb-findings/01023243): 21 cases, 20 in the probable cause - [Tube](https://openairdocs.org/ntsb-findings/01023245): 19 cases, 16 in the probable cause - [Landing gear/wheel fairing](https://openairdocs.org/ntsb-findings/01023201): 9 cases, 8 in the probable cause - [Land gear sys wiring](https://openairdocs.org/ntsb-findings/01023297): 9 cases, 9 in the probable cause - [Aux gear (tail/rotorcrft skid)](https://openairdocs.org/ntsb-findings/01023270): 7 cases, 7 in the probable cause - [Landing gear door retract sec](https://openairdocs.org/ntsb-findings/01023231): 5 cases, 4 in the probable cause - [Anti-skid section](https://openairdocs.org/ntsb-findings/01023241): 5 cases, 3 in the probable cause - [Landing gear door actuator](https://openairdocs.org/ntsb-findings/01023232): 4 cases, 4 in the probable cause - [Steering unit](https://openairdocs.org/ntsb-findings/01023251): 4 cases, 3 in the probable cause - [Shimmy damper](https://openairdocs.org/ntsb-findings/01023252): 3 cases, 3 in the probable cause - [Emergency floatation section](https://openairdocs.org/ntsb-findings/01023212): 1 cases, 1 in the probable cause ## Defining events in these cases - [Landing gear collapse](https://openairdocs.org/ntsb-events/094): 359 cases - [Landing gear not configured](https://openairdocs.org/ntsb-events/095): 353 cases - [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 314 cases - [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 270 cases - [Nose over/nose down](https://openairdocs.org/ntsb-events/096): 113 cases - [Hard landing](https://openairdocs.org/ntsb-events/092): 45 cases - [Runway excursion](https://openairdocs.org/ntsb-events/300): 39 cases - [Abnormal runway contact](https://openairdocs.org/ntsb-events/090): 39 cases - [Part(s) separation from AC](https://openairdocs.org/ntsb-events/338): 32 cases - [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 30 cases ## Aircraft models (registry) - [Cessna 172RG](https://openairdocs.org/model/cessna-172rg): 24 cases - [Piper PA-30](https://openairdocs.org/model/piper-pa-30): 21 cases - [Cessna P210N](https://openairdocs.org/model/cessna-p210n): 20 cases - [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150): 19 cases - [Piper PA-24-250](https://openairdocs.org/model/piper-pa-24-250): 18 cases - [Cessna A185F](https://openairdocs.org/model/cessna-a185f): 18 cases - [Cessna R182](https://openairdocs.org/model/cessna-r182): 18 cases - [Beech A36](https://openairdocs.org/model/beech-a36): 18 cases - [Cessna 140](https://openairdocs.org/model/cessna-140): 17 cases - [Piper PA-44-180](https://openairdocs.org/model/piper-pa-44-180): 16 cases ## Other findings in the same cases - [Directional control](https://openairdocs.org/ntsb-findings/01062020) (Aircraft): 302 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 295 cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 260 cases - [Forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035) (Personnel issues): 234 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 116 cases - [Use of checklist](https://openairdocs.org/ntsb-findings/02063030) (Personnel issues): 112 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 101 cases - [Incorrect action performance](https://openairdocs.org/ntsb-findings/02041015) (Personnel issues): 100 cases - [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 73 cases - [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 57 cases ## Newest cases - [NTSB CEN26LA278](https://openairdocs.org/ntsb/CEN26LA278), Aug 1, 2026: Cessna 310 (N3618G), North Little Rock, AR, substantial damage. Probable cause: The flight instructor and pilot receiving instruction’s failure to verify that the landing gear was extended before landing, which resulted in a gear-up landing. - [NTSB ERA26LA280](https://openairdocs.org/ntsb/ERA26LA280), Jul 24, 2026: Waco ASO (N119Y), Hamilton, OH, substantial damage. Probable cause: The separation of the right main landing gear axle, which resulted in a loss of control during the landing roll. - [NTSB ERA26LA265](https://openairdocs.org/ntsb/ERA26LA265), Jun 27, 2026: Beech E35 (N3272C), Lincoln, AL, substantial damage. Probable cause: The pilot’s failure to ensure that the landing gear were extended prior to landing. - [NTSB CEN26LA240](https://openairdocs.org/ntsb/CEN26LA240), Jun 24, 2026: Beech 58 (N96GB), Traverse City, MI, substantial damage. Probable cause: The pilot’s failure to extend the landing gear before landing. - [NTSB CEN26LA236](https://openairdocs.org/ntsb/CEN26LA236), Jun 24, 2026: Beech C24R (N6164C), Baton Rouge, LA, substantial damage. Probable cause: The pilot’s failure to extend the landing gear before landing. - [NTSB CEN26LA232](https://openairdocs.org/ntsb/CEN26LA232), Jun 23, 2026: Rocky Mountain Kitplanes S-6S (N164GR), Marvel, AR, substantial damage. Probable cause: A partial blockage of the pitot static system that precluded the airspeed indicator from displaying the correct airspeed which led to the faster landing speed and bounced landing. - [NTSB CEN26LA226](https://openairdocs.org/ntsb/CEN26LA226), Jun 14, 2026: Beech A36TC (N3701N), Kingsford, MI, substantial damage. Probable cause: The pin on the nose gear brace assembly that engages with the cam on the nose landing gear door actuator shaft was not seated inside the cam, which rendered the nose landing gear inoperative. - [NTSB WPR26LA210](https://openairdocs.org/ntsb/WPR26LA210), Jun 3, 2026: Cessna P210 (N4875K), Salem, OR, substantial damage. Probable cause: The pilot’s failure to extend the landing gear prior to landing. - [NTSB ERA26LA318](https://openairdocs.org/ntsb/ERA26LA318), May 30, 2026: Cessna 140 (N77061), Homestead, FL, substantial damage. Probable cause: The pilot’s excessive braking during the landing roll, which resulted in a nose over. - [NTSB ERA26LA235](https://openairdocs.org/ntsb/ERA26LA235), May 23, 2026: Piper PA-24-250 (N5376P), Bartow, FL, substantial damage. Probable cause: The pilot’s failure to extend the landing gear before landing. 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.