# Tie-down/mooring - Type: NTSB finding subsection - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft handling/service](https://openairdocs.org/ntsb-findings/0101) › [Parking/securing](https://openairdocs.org/ntsb-findings/010110) › Tie-down/mooring - NTSB code: 01011020 - Cases: 33 - In the probable cause: 29 - Fatal cases: 1 - All cases: https://openairdocs.org/ntsb-findings/01011020/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01011020/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01011020 ## Cases per year (in the probable cause / all) - 2008: 2 / 2 - 2009: 1 / 2 - 2010: 1 / 2 - 2011: 3 / 4 - 2012: 5 / 5 - 2013: 1 / 1 - 2014: 5 / 5 - 2015: 2 / 2 - 2016: 2 / 2 - 2017: 1 / 1 - 2020: 1 / 1 - 2021: 2 / 2 - 2024: 0 / 1 - 2025: 2 / 2 - 2026: 1 / 1 ## Defining events in these cases - [Ground handling event](https://openairdocs.org/ntsb-events/080): 9 cases - [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 8 cases - [Ground collision](https://openairdocs.org/ntsb-events/200): 8 cases - [Dynamic rollover](https://openairdocs.org/ntsb-events/231): 3 cases - [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 2 cases - [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 1 cases - [Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470): 1 cases - [AC/prop/rotor contact w person](https://openairdocs.org/ntsb-events/081): 1 cases ## Aircraft models (registry) - [Cessna 172](https://openairdocs.org/model/cessna-172): 2 cases - [Luscombe 8A](https://openairdocs.org/model/luscombe-8a): 1 cases - [Robinson Helicopter R44](https://openairdocs.org/model/robinson-helicopter-r44): 1 cases - [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta): 1 cases - [Piper PA-28R-201T](https://openairdocs.org/model/piper-pa-28r-201t): 1 cases - [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161): 1 cases - [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140): 1 cases - [Piper PA-24](https://openairdocs.org/model/piper-pa-24): 1 cases - [Piper PA-22-135](https://openairdocs.org/model/piper-pa-22-135): 1 cases - [Piper PA-15](https://openairdocs.org/model/piper-pa-15): 1 cases ## Other findings in the same cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 9 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 8 cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 7 cases - [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 7 cases - [Aircraft](https://openairdocs.org/ntsb-findings/03022040) (Environmental issues): 5 cases - [Planning/preparation, general](https://openairdocs.org/ntsb-findings/02061000) (Personnel issues): 4 cases - [Preflight inspection](https://openairdocs.org/ntsb-findings/02061510) (Personnel issues): 3 cases - [Incorrect action performance](https://openairdocs.org/ntsb-findings/02041015) (Personnel issues): 3 cases - [Incorrect action selection](https://openairdocs.org/ntsb-findings/02041010) (Personnel issues): 3 cases - [Power lever](https://openairdocs.org/ntsb-findings/01057603) (Aircraft): 3 cases ## Newest cases - [NTSB WPR26LA170](https://openairdocs.org/ntsb/WPR26LA170), Apr 27, 2026: Balony Kubicek Spol Sro BB100Z (N355WC), Elk Grove, CA, substantial damage. Probable cause: The pilot’s delayed decision to deflate the balloon during a static display in windy conditions, which resulted in a loss of control and impact with a building. Contributing to the accident was the… - [NTSB CEN26LA076](https://openairdocs.org/ntsb/CEN26LA076), Dec 31, 2025: Nanchang China CJ-6A (N559TX), Burnet, TX, substantial damage. Probable cause: The pilot’s failure to secure the airplane before hand-propping the engine, which resulted in the airplane’s unexpected movement and subsequent impact with an airport fence. - [NTSB WPR26LA042](https://openairdocs.org/ntsb/WPR26LA042), Nov 9, 2025: Cessna 150 (N6495T), Marana, AZ, substantial damage. Probable cause: The pilot’s improper starting procedure which resulted in the airplane’s unexpected movement and subsequent impact with an airport fence. - [NTSB ERA25LA077](https://openairdocs.org/ntsb/ERA25LA077), Dec 12, 2024: Wolstenholme Dennis Pietenpol AIR Camper (N161DW), Tullahoma, TN, substantial damage. Probable cause: The pilot’s failure to adequately secure the airplane before hand-propping the engine. Contributing was the pilot’s lack of training in hand-propping procedures. - [NTSB CEN21LA310](https://openairdocs.org/ntsb/CEN21LA310), Jul 5, 2021: Aeronca 11AC (N9149E), Wapakoneta, OH, substantial damage. Probable cause: The pilot’s inadequate engine hand propping procedure resulting in the unoccupied airplane’s unintended movement and subsequent impact with a hangar. - [NTSB WPR21LA149](https://openairdocs.org/ntsb/WPR21LA149), Mar 29, 2021: Luscombe 8A (N28461), Port Townsend, WA, substantial damage. Probable cause: The pilot’s inadequate engine hand propping procedure which resulted in the airplane’s unexpected movement and subsequent impact with a fueling station. - [NTSB CEN20CA090](https://openairdocs.org/ntsb/CEN20CA090), Feb 18, 2020: Robinson R22 (N10786), Cotulla, TX, substantial damage. Probable cause: The pilot's failure to remove the right skid trailer tie-down before attempting to take off, which resulted in a dynamic roll-over. - [NTSB GAA17CA119](https://openairdocs.org/ntsb/GAA17CA119), Jan 6, 2017: Cessna 175 (N8148T), Lakeport, CA, substantial damage. Probable cause: The pilot’s failure to secure the airplane before pulling the propeller through, which resulted in the airplane rolling and subsequently colliding with a parked airplane. - [NTSB ERA16CA264](https://openairdocs.org/ntsb/ERA16CA264), Jul 20, 2016: Aeronca 7BCM (N1639E), Connellsville, PA, substantial damage. Probable cause: The pilot's failure to properly set the throttle and secure the airplane before hand-propping the engine for startup. - [NTSB GAA16CA162](https://openairdocs.org/ntsb/GAA16CA162), Mar 26, 2016: Piper PA24 (N55UA), Homestead, FL, substantial damage. Probable cause: The pilots decision to hand prop the airplane's engine without securing the airplane, resulting a runaway airplane and collision with a fence. 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.