# Ground proximity system - Type: NTSB finding subsection - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › [Navigation system](https://openairdocs.org/ntsb-findings/010234) › Ground proximity system - NTSB code: 01023444 - Cases: 7 - In the probable cause: 4 - Fatal cases: 6 - All cases: https://openairdocs.org/ntsb-findings/01023444/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01023444/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01023444 ## Cases per year (in the probable cause / all) - 2008: 0 / 1 - 2011: 1 / 1 - 2013: 0 / 1 - 2014: 1 / 1 - 2015: 0 / 1 - 2016: 1 / 1 - 2018: 1 / 1 ## Defining events in these cases - [Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120): 6 cases - [VFR encounter with IMC](https://openairdocs.org/ntsb-events/401): 1 cases ## Aircraft models (registry) - [Aerospatiale SA365N-1 DAUPHIN](https://openairdocs.org/model/aerospatiale-sa365n-1-dauphin): 1 cases - [Rockwell International 690A](https://openairdocs.org/model/rockwell-international-690a): 1 cases - [Airbus A300 F4-622R](https://openairdocs.org/model/airbus-a300-f4-622r): 1 cases - [Dehavilland DHC-3](https://openairdocs.org/model/dehavilland-dhc-3): 1 cases - [Cessna 208B](https://openairdocs.org/model/cessna-208b): 1 cases - [Bell 206B](https://openairdocs.org/model/bell-206b): 1 cases - [Airplane Factory Ltd The SLING](https://openairdocs.org/model/airplane-factory-ltd-the-sling): 1 cases ## Other findings in the same cases - [Mountainous/hilly terrain](https://openairdocs.org/ntsb-findings/03021010) (Environmental issues): 4 cases - [Altitude](https://openairdocs.org/ntsb-findings/01062012) (Aircraft): 4 cases - [Oversight of operation](https://openairdocs.org/ntsb-findings/04032015) (Organizational issues): 3 cases - [Dark](https://openairdocs.org/ntsb-findings/03036020) (Environmental issues): 3 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 3 cases - [Safety programs, general](https://openairdocs.org/ntsb-findings/04035000) (Organizational issues): 2 cases - [Training, general](https://openairdocs.org/ntsb-findings/04031000) (Organizational issues): 2 cases - [Adequacy of policy/proc](https://openairdocs.org/ntsb-findings/04021015) (Organizational issues): 2 cases - [Ceiling/visibility/precip, general](https://openairdocs.org/ntsb-findings/03035000) (Environmental issues): 2 cases - [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 2 cases ## Newest cases - [NTSB CEN19FA024](https://openairdocs.org/ntsb/CEN19FA024), Nov 4, 2018: Bell 206 (N417WT), Uvalde, TX, destroyed, 3 fatal. Probable cause: The pilot's controlled flight into terrain during night visual meteorological conditions. Contributing to the accident was the pilot improper decision to inhibit the helicopter's terrain warning… - [NTSB ANC17MA001](https://openairdocs.org/ntsb/ANC17MA001), Oct 2, 2016: Cessna 208B (N208SD), Togiak, AK, destroyed, 3 fatal. Probable cause: The flight crew's decision to continue the visual flight rules flight into deteriorating visibility and their failure to perform an immediate escape maneuver after entry into instrument… - [NTSB ANC15MA041](https://openairdocs.org/ntsb/ANC15MA041), Jun 25, 2015: Dehavilland DHC-3 (N270PA), Ketchikan, AK, substantial damage, 9 fatal. Probable cause: (1) the pilot's decision to continue visual flight into an area of instrument meteorological conditions, which resulted in his geographic disorientation and controlled flight into terrain; and (2)… - [NTSB WPR14LA177](https://openairdocs.org/ntsb/WPR14LA177), Apr 30, 2014: Airplane Factory Ltd The Sling (N511NG), Daggett, CA, substantial damage. Probable cause: The pilots’ failure to maintain clearance from terrain while operating in dark night, visual meteorological conditions. Contributing to the accident was the pilots’ failure to enable the aural… - [NTSB DCA13MA133](https://openairdocs.org/ntsb/DCA13MA133), Aug 14, 2013: Airbus A300 - F4 622R (N155UP), Birmingham, AL, destroyed, 2 fatal. Probable cause: the flight crew's continuation of an unstabilized approach and their failure to monitor the aircraft's altitude during the approach, which led to an inadvertent descent below the minimum approach… - [NTSB WPR12MA046](https://openairdocs.org/ntsb/WPR12MA046), Nov 24, 2011: Rockwell 690 (N690SM), Apache Junction, AZ, destroyed, 6 fatal. Probable cause: The pilot's failure to maintain a safe ground track and altitude combination for the moonless night visual flight rules flight, which resulted in controlled flight into terrain. Contributing to the… - [NTSB MIA08MA203](https://openairdocs.org/ntsb/MIA08MA203), Sep 28, 2008: Aerospatiale SA365N-1 D (N92MD), District Heights, MD, substantial damage, 4 fatal. Probable cause: The pilot's attempt to regain visual conditions by performing a rapid descent and his failure to arrest the descent at the minimum descent altitude during a nonprecision approach. Contributing to the… 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.