# Communications system, general - Type: NTSB finding subsection - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › [Communications system](https://openairdocs.org/ntsb-findings/010223) › Communications system, general - NTSB code: 01022300 - Cases: 7 - In the probable cause: 6 - Fatal cases: 2 - All cases: https://openairdocs.org/ntsb-findings/01022300/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01022300/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01022300 ## Cases per year (in the probable cause / all) - 2016: 1 / 1 - 2017: 1 / 1 - 2020: 1 / 1 - 2021: 1 / 2 - 2022: 1 / 1 - 2026: 1 / 1 ## Defining events in these cases - [Midair collision](https://openairdocs.org/ntsb-events/250): 3 cases - [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 1 cases - [Landing area undershoot](https://openairdocs.org/ntsb-events/370): 1 cases - [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 1 cases - [Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120): 1 cases ## Aircraft models (registry) - [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 1 cases - [Piper J3C-65](https://openairdocs.org/model/piper-j3c-65): 1 cases - [Cessna 414](https://openairdocs.org/model/cessna-414): 1 cases - [Cessna R182](https://openairdocs.org/model/cessna-r182): 1 cases - [Cessna 172N](https://openairdocs.org/model/cessna-172n): 1 cases - [Aero Commander 112](https://openairdocs.org/model/aero-commander-112): 1 cases ## Other findings in the same cases - [Monitoring other aircraft](https://openairdocs.org/ntsb-findings/02021540) (Personnel issues): 3 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 2 cases - [Descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040) (Aircraft): 2 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 1 cases - [Adequacy of policy/proc](https://openairdocs.org/ntsb-findings/04021015) (Organizational issues): 1 cases - [Equipment/operational](https://openairdocs.org/ntsb-findings/03042030) (Environmental issues): 1 cases - [Low visibility](https://openairdocs.org/ntsb-findings/03035015) (Environmental issues): 1 cases - [Gusts](https://openairdocs.org/ntsb-findings/03034045) (Environmental issues): 1 cases - [Aircraft](https://openairdocs.org/ntsb-findings/03022040) (Environmental issues): 1 cases - [Mountainous/hilly terrain](https://openairdocs.org/ntsb-findings/03021010) (Environmental issues): 1 cases ## Newest cases - [NTSB WPR26LA083](https://openairdocs.org/ntsb/WPR26LA083), Jan 19, 2026: Robinson R44 (N996NR), Parkman, WY, substantial damage. Probable cause: The pilots’ failure to maintain separation while conducting air work in a common operational area. Contributing to the accident was the pilots’ divided attention associated with the mission activity… - [NTSB ERA22LA215](https://openairdocs.org/ntsb/ERA22LA215), May 2, 2022: Cessna 414 (N46TA), Connellsville, PA, substantial damage. Probable cause: The pilot/mechanic’s failure to properly secure two airplane avionics units, which resulted in the trays supporting the units to sag downward and become lodged in the movement area of the elevator… - [NTSB CEN22FA081](https://openairdocs.org/ntsb/CEN22FA081), Dec 21, 2021: Cessna 208 (N1116N), Fulshear, TX, destroyed, 2 fatal. Probable cause: The limitations of the see-and-avoid concept as a method for self-separation of aircraft, which resulted in an inflight collision. Contributing to the accident was the absence of collision avoidance… - [NTSB WPR21LA348](https://openairdocs.org/ntsb/WPR21LA348), Sep 19, 2021: Cessna 172N (N4977G), Grass Valley, CA, substantial damage. Probable cause: The pilot’s failure to attain a proper touchdown point on the runway while landing in gusting wind conditions, which resulted in a runway overrun. Contributing to the accident was the pilot’s… - [NTSB CEN21LA040](https://openairdocs.org/ntsb/CEN21LA040), Nov 3, 2020: Piper J3C (N87715), Weslaco, TX, substantial damage. Probable cause: The pilot of N87715 inadvertently allowed his airplane to drift right of the runway during the climb after a touch-and-go landing, and the pilot of N6463H did not maintain adequate separation from… - [NTSB ERA18LA034](https://openairdocs.org/ntsb/ERA18LA034), Nov 29, 2017: Aero Commander 112 (N690RU), Westminister, MD, substantial damage. Probable cause: The student pilot's failure to maintain a proper glidepath during the approach due to his distraction by the failure of an avionics panel, which resulted in a runway undershoot. - [NTSB WPR16FA111](https://openairdocs.org/ntsb/WPR16FA111), May 15, 2016: Cessna R182 (N133BW), Altadena, CA, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain clearance from rising mountainous terrain while flying in instrument meteorological conditions. Contributing to the accident was the loss of radio communications for a… 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.