# Landing gear door retract sec - Type: NTSB finding subsection - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › [Landing gear system](https://openairdocs.org/ntsb-findings/010232) › Landing gear door retract sec - NTSB code: 01023231 - Cases: 5 - In the probable cause: 4 - Fatal cases: 0 - All cases: https://openairdocs.org/ntsb-findings/01023231/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01023231/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01023231 ## Cases per year (in the probable cause / all) - 2008: 1 / 1 - 2016: 1 / 1 - 2018: 1 / 1 - 2023: 1 / 2 ## Defining events in these cases - [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 2 cases - [Part(s) separation from AC](https://openairdocs.org/ntsb-events/338): 1 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 1 cases - [Landing gear not configured](https://openairdocs.org/ntsb-events/095): 1 cases ## Aircraft models (registry) - [Cessna T337G](https://openairdocs.org/model/cessna-t337g): 2 cases - [North American TB-25N](https://openairdocs.org/model/north-american-tb-25n): 1 cases - [Cessna 172RG](https://openairdocs.org/model/cessna-172rg): 1 cases - [Beech 95](https://openairdocs.org/model/beech-95): 1 cases ## Other findings in the same cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 1 cases - [Repair](https://openairdocs.org/ntsb-findings/02062015) (Personnel issues): 1 cases - [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 1 cases - [Anxiety/panic](https://openairdocs.org/ntsb-findings/02022515) (Personnel issues): 1 cases - [Descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040) (Aircraft): 1 cases - [Nose/tail landing gear](https://openairdocs.org/ntsb-findings/01023220) (Aircraft): 1 cases ## Newest cases - [NTSB WPR23LA154](https://openairdocs.org/ntsb/WPR23LA154), Apr 16, 2023: Cessna T337G (N38C), Upland, CA, substantial damage. Probable cause: The pilot’s failure to properly flare the airplane, which resulted in a hard landing. Contributing to the accident was the pilot’s decision to fly a nonstandard traffic pattern, which resulted in an… - [NTSB WPR23LA157](https://openairdocs.org/ntsb/WPR23LA157), Apr 5, 2023: Beech 95 (N21RS), Bremerton, WA, substantial damage. Probable cause: Failure of the down limit and down indicator switch and the warning horn switch assemblies, which prevented the landing gear from extending and at the same time providing a false indication that the… - [NTSB WPR18LA215](https://openairdocs.org/ntsb/WPR18LA215), Aug 9, 2018: Cessna T337 (N255), Lewiston, ID, substantial damage. Probable cause: The liberation of an internal snap ring from a landing gear door actuator, which resulted in a complete loss of hydraulic fluid and a gear-up landing. Contributing to the accident was the failure of… - [NTSB CEN17LA033](https://openairdocs.org/ntsb/CEN17LA033), Oct 29, 2016: North American TB 25N (N25YR), Dallas, TX, substantial damage. Probable cause: The overstress failure of the landing gear connecting rod and the improper installation of the arresting cables, which allowed the landing gear door to depart in flight and impact the airplane. - [NTSB DEN08LA159](https://openairdocs.org/ntsb/DEN08LA159), Sep 19, 2008: Cessna 172RG (N6416V), St. Louis, MO, substantial damage. Probable cause: The improper maintenance performed resulting in a jammed nose landing gear door preventing the extension of the nose landing gear. 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.