# Equip certification/testing - Type: NTSB finding subsection - Path: [Organizational issues](https://openairdocs.org/ntsb-findings/04) › [Development](https://openairdocs.org/ntsb-findings/0401) › [Selection/certification/testing](https://openairdocs.org/ntsb-findings/040120) › Equip certification/testing - NTSB code: 04012015 - Cases: 21 - In the probable cause: 17 - Fatal cases: 9 - All cases: https://openairdocs.org/ntsb-findings/04012015/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/04012015/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/04012015 ## Cases per year (in the probable cause / all) - 2008: 4 / 6 - 2009: 3 / 3 - 2010: 1 / 2 - 2011: 2 / 2 - 2014: 2 / 2 - 2016: 1 / 1 - 2017: 1 / 1 - 2018: 0 / 1 - 2019: 2 / 2 - 2021: 1 / 1 ## Defining events in these cases - [Birdstrike](https://openairdocs.org/ntsb-events/901): 4 cases - [Runway excursion](https://openairdocs.org/ntsb-events/300): 3 cases - [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 2 cases - [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 2 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 2 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 2 cases - [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 1 cases - [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 1 cases - [Electrical system malf/failure](https://openairdocs.org/ntsb-events/332): 1 cases - [Midair collision](https://openairdocs.org/ntsb-events/250): 1 cases ## Aircraft models (registry) - [Raytheon 400A](https://openairdocs.org/model/raytheon-400a): 1 cases - [Piper PA-30](https://openairdocs.org/model/piper-pa-30): 1 cases - [Learjet 60](https://openairdocs.org/model/learjet-60): 1 cases - [Gulfstream Aerospace GVI](https://openairdocs.org/model/gulfstream-aerospace-gvi): 1 cases - [Gulfstream Aerospace G-IV](https://openairdocs.org/model/gulfstream-aerospace-g-iv): 1 cases - [Airbus Industrie A320-214](https://openairdocs.org/model/airbus-industrie-a320-214): 1 cases - [Dehavilland DHC-2 MK 1](https://openairdocs.org/model/dehavilland-dhc-2-mk-1): 1 cases - [Dehavilland DHC-3](https://openairdocs.org/model/dehavilland-dhc-3): 1 cases - [Cessna 560XL](https://openairdocs.org/model/cessna-560xl): 1 cases - [Cessna 500](https://openairdocs.org/model/cessna-500): 1 cases ## Other findings in the same cases - [Animal(s)/bird(s)](https://openairdocs.org/ntsb-findings/03022045) (Environmental issues): 4 cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 4 cases - [Adequacy of policy/proc](https://openairdocs.org/ntsb-findings/04021015) (Organizational issues): 3 cases - [Equipment design](https://openairdocs.org/ntsb-findings/04011010) (Organizational issues): 3 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 3 cases - [Fuel](https://openairdocs.org/ntsb-findings/01071010) (Aircraft): 3 cases - [Angle of attack](https://openairdocs.org/ntsb-findings/01062042) (Aircraft): 3 cases - [Performance/control parameters, general](https://openairdocs.org/ntsb-findings/01062000) (Aircraft): 3 cases - [Oversight of reg compliance](https://openairdocs.org/ntsb-findings/04032040) (Organizational issues): 2 cases - [Policy/procedure, general](https://openairdocs.org/ntsb-findings/04021000) (Organizational issues): 2 cases ## Newest cases - [NTSB ERA21FA346](https://openairdocs.org/ntsb/ERA21FA346), Sep 2, 2021: Cessna 560 (N560AR), Farmington, CT, destroyed, 4 fatal. Probable cause: The pilot-in-command’s failure to release the parking brake before attempting to initiate the takeoff, which produced an unexpected retarding force and airplane-nose-down pitching moment that… - [NTSB CEN19MA141](https://openairdocs.org/ntsb/CEN19MA141), May 13, 2019: De Havilland DHC-2 (N952DB), Ketchikan, AK, destroyed, 6 fatal. Probable cause: The inherent limitations of the see-and-avoid concept, which prevented the two pilots from seeing the other airplane before the collision, and the absence of visual and aural alerts from both… - [NTSB ERA19FA170](https://openairdocs.org/ntsb/ERA19FA170), May 11, 2019: Piper PA 30 (N7650Y), Naples, FL, destroyed, 1 fatal. Probable cause: Incapacitation of the pilot due to a birdstrike through the windshield in front of the pilot's position, while on approach to land. - [NTSB ERA18LA134](https://openairdocs.org/ntsb/ERA18LA134), Apr 20, 2018: Stanley Ernie Sigurd Kolb Mark (N9123R), Collegedale, TN, destroyed, 1 fatal. Probable cause: The pilot's loss of airplane control, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's improper decision to take off in the nonairworthy airplane in which he had… - [NTSB CEN17LA156](https://openairdocs.org/ntsb/CEN17LA156), Apr 17, 2017: Loomis Xenon 4 (N912XV), Knoxville, IA, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined based on the available information. Contributing to the accident was the failure of the owners to obtain proper materials… - [NTSB DCA16FA199](https://openairdocs.org/ntsb/DCA16FA199), Jul 6, 2016: Bell 525 (N525TA), Italy, TX, destroyed, 2 fatal. Probable cause: A severe vibration of the helicopter that led to the crew's inability to maintain sufficient rotor rotation speed (Nr), leading to excessive main rotor blade flapping, subsequent main rotor blade… - [NTSB CEN14FA505](https://openairdocs.org/ntsb/CEN14FA505), Sep 19, 2014: Embraer EMB 505 (N322QS), Conroe, TX, substantial damage. Probable cause: The second-in-command's (SIC) engagement of the emergency parking brake (EPB), which decreased the airplane's braking performance and prevented it from stopping on the available runway. Contributing… - [NTSB ERA14MA271](https://openairdocs.org/ntsb/ERA14MA271), Jun 1, 2014: Gulfstream Aerospace G IV (N121JM), Bedford, MA, destroyed, 7 fatal. Probable cause: The flight crewmembers' failure to perform the flight control check before takeoff, their attempt to take off with the gust lock system engaged, and their delayed execution of a rejected takeoff… - [NTSB DCA12CA023](https://openairdocs.org/ntsb/DCA12CA023), Dec 19, 2011: University Of Kansas Meridian (UNREG), McMurdo, AY, substantial damage. Probable cause: an aerodynamic stall induced by an inadvertent autopilot Home command. The Home command was entered following a loss of the direct radio link due to improperly set failsafe settings, and an… - [NTSB DCA11MA076](https://openairdocs.org/ntsb/DCA11MA076), Apr 2, 2011: Gulfstream GVI (N652GD), Roswell, NM, substantial damage, 4 fatal. Probable cause: The National Transportation Safety Board determines the probable cause(s) of this accident as follows: an aerodynamic stall and subsequent uncommanded roll during a one engine-inoperative takeoff… 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.