# Design - Type: NTSB finding section - Path: [Organizational issues](https://openairdocs.org/ntsb-findings/04) › [Development](https://openairdocs.org/ntsb-findings/0401) › Design - NTSB code: 040110 - Cases: 66 - In the probable cause: 57 - Fatal cases: 16 - All cases: https://openairdocs.org/ntsb-findings/040110/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/040110/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/040110 ## Cases per year (in the probable cause / all) - 2008: 6 / 6 - 2009: 8 / 9 - 2010: 3 / 4 - 2011: 7 / 9 - 2012: 7 / 7 - 2013: 4 / 5 - 2014: 3 / 4 - 2015: 2 / 2 - 2016: 5 / 5 - 2017: 2 / 3 - 2019: 2 / 2 - 2020: 1 / 1 - 2021: 1 / 1 - 2022: 2 / 2 - 2023: 1 / 2 - 2024: 2 / 3 - 2025: 1 / 1 ## Findings - [Equipment design](https://openairdocs.org/ntsb-findings/04011010): 35 cases, 32 in the probable cause - [Policy/procedure development](https://openairdocs.org/ntsb-findings/04011025): 17 cases, 15 in the probable cause - [Design of document/info](https://openairdocs.org/ntsb-findings/04011020): 11 cases, 7 in the probable cause - [Task design](https://openairdocs.org/ntsb-findings/04011015): 3 cases, 3 in the probable cause - [Interface design](https://openairdocs.org/ntsb-findings/04011030): 3 cases, 3 in the probable cause - [Design, general](https://openairdocs.org/ntsb-findings/04011000): 1 cases, 0 in the probable cause ## Defining events in these cases - [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 8 cases - [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 8 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 5 cases - [Landing gear collapse](https://openairdocs.org/ntsb-events/094): 5 cases - [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 4 cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 3 cases - [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 3 cases - [Runway excursion](https://openairdocs.org/ntsb-events/300): 3 cases - [Fuel exhaustion](https://openairdocs.org/ntsb-events/192): 3 cases - [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 2 cases ## Aircraft models (registry) - [Cessna 560XL](https://openairdocs.org/model/cessna-560xl): 2 cases - [Boeing 777-222](https://openairdocs.org/model/boeing-777-222): 2 cases - [Flight Design CTSW](https://openairdocs.org/model/flight-design-ctsw): 2 cases - [Aerospatiale AS350BA](https://openairdocs.org/model/aerospatiale-as350ba): 1 cases - [Sikorsky S-76C](https://openairdocs.org/model/sikorsky-s-76c): 1 cases - [Sikorsky S-97A](https://openairdocs.org/model/sikorsky-s-97a): 1 cases - [Schweizer G-164B](https://openairdocs.org/model/schweizer-g-164b): 1 cases - [Saab-Scania 2000](https://openairdocs.org/model/saab-scania-2000): 1 cases - [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 1 cases - [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta): 1 cases ## Other findings in the same cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 9 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 7 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 6 cases - [Fuel](https://openairdocs.org/ntsb-findings/01071010) (Aircraft): 5 cases - [Oversight of operation](https://openairdocs.org/ntsb-findings/04032015) (Organizational issues): 4 cases - [Equipment manufacture](https://openairdocs.org/ntsb-findings/04013010) (Organizational issues): 4 cases - [Equip certification/testing](https://openairdocs.org/ntsb-findings/04012015) (Organizational issues): 4 cases - [Use of policy/procedure](https://openairdocs.org/ntsb-findings/02063032) (Personnel issues): 4 cases - [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 4 cases - [Airspeed](https://openairdocs.org/ntsb-findings/01062010) (Aircraft): 4 cases ## Newest cases - [NTSB DCA25MA108](https://openairdocs.org/ntsb/DCA25MA108), Jan 30, 2025: Bombardier CL-600-2C10 (N709PS), Washington, DC, destroyed, 67 fatal. Probable cause: The Federal Aviation Administration’s (FAA) placement of a helicopter route in close proximity to a runway approach path; their failure to regularly review and evaluate helicopter routes and… - [NTSB ANC25LA008](https://openairdocs.org/ntsb/ANC25LA008), Nov 2, 2024: Cub Crafters CC18-180 (N55PK), Anchorage, AK, substantial damage. Probable cause: The incorrect installation of the rear flight control stick, resulting in the pilot’s inability to control the pitch attitude, coupled with the pilot’s inadequate control system check before… - [NTSB CEN24LA318](https://openairdocs.org/ntsb/CEN24LA318), Jun 20, 2024: Ayres S2R (N4004K), Stanwood, MI, substantial damage. Probable cause: The pilot’s failure to maintain terrain clearance during a low-level aerial application flight, which resulted in impact with terrain and a subsequent forced landing. Contributing to the accident was… - [NTSB ERA24LA216](https://openairdocs.org/ntsb/ERA24LA216), Feb 20, 2024: Apellix B1 Washing Drone (FA33N7WLTR), Orlando, FL, substantial damage. Probable cause: A failure of the sUAS’s magnetometer while operating in close proximity to commercial air conditioning equipment, which resulted in the sUAS’s erratic maneuvering. Contributing to the accident was… - [NTSB WPR24FA053](https://openairdocs.org/ntsb/WPR24FA053), Dec 8, 2023: Beauchamp Norm Kitfox (N66180), Eloy, AZ, destroyed, 1 fatal. Probable cause: The separation of a propeller blade during the initial climb due to insufficient blade retention forces. Contributing to the accident was the propeller blade retention design, manufacturing defects… - [NTSB DCA23LA133](https://openairdocs.org/ntsb/DCA23LA133), Jan 24, 2023: Boeing 777-222 (N774UA), Honolulu, HI, incident, no damage. Probable cause: The airport’s continued use of taxiway Kilo, despite an identified risk of pilots repeatedly failing to stop at a hold short line prior to two intersecting runways. Contributing were 1) the… - [NTSB ERA23FA007](https://openairdocs.org/ntsb/ERA23FA007), Oct 6, 2022: Seamax M-22 (N46PD), East Hampton, NY, substantial damage, 1 fatal. Probable cause: An inflight separation of the right wing as a result of the manufacturer’s application of a bolt and nut in the upper wing strut attachment point that was inconsistent with the nut design intent and… - [NTSB DCA22LA175](https://openairdocs.org/ntsb/DCA22LA175), Aug 6, 2022: Boeing 777 (A7-BFH), Chicago, IL, substantial damage. Probable cause: The ground controller’s inappropriate routing of the B777 through a non-movement area, resulting in the airplane’s right wingtip contacting a light pole. Contributing to the accident was the lack of… - [NTSB DCA21FA085](https://openairdocs.org/ntsb/DCA21FA085), Feb 20, 2021: Boeing 777-222 (N772UA), Broomfield, CO, incident, minor damage. Probable cause: The fatigue failure of the right engine fan blade. Contributing to the fan blade failure was the inadequate inspection of the blades, which failed to identify low-level indications of cracking, and… - [NTSB DCA20IA081](https://openairdocs.org/ntsb/DCA20IA081), Feb 6, 2020: Aerospatiale AS350BA (N611TC), Johnson Valley, CA, incident, minor damage. Probable cause: the failure of the small UAS remote pilot to give way to the helicopter, resulting in an inflight collision. Contributing to the incident was the sUAS remote pilot’s failure to assess and mitigate… 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.