# Communications system - Type: NTSB finding section - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › Communications system - NTSB code: 010223 - Cases: 18 - In the probable cause: 13 - Fatal cases: 5 - All cases: https://openairdocs.org/ntsb-findings/010223/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/010223/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/010223 ## Cases per year (in the probable cause / all) - 2010: 1 / 2 - 2011: 0 / 1 - 2013: 2 / 2 - 2016: 2 / 2 - 2017: 2 / 2 - 2018: 1 / 1 - 2020: 1 / 1 - 2021: 1 / 3 - 2022: 2 / 2 - 2023: 0 / 1 - 2026: 1 / 1 ## Findings - [Communications system, general](https://openairdocs.org/ntsb-findings/01022300): 7 cases, 6 in the probable cause - [VHF communication system](https://openairdocs.org/ntsb-findings/01022312): 6 cases, 4 in the probable cause - [Interphone](https://openairdocs.org/ntsb-findings/01022340): 4 cases, 2 in the probable cause - [Audio & video monitoring](https://openairdocs.org/ntsb-findings/01022370): 1 cases, 1 in the probable cause ## Defining events in these cases - [Midair collision](https://openairdocs.org/ntsb-events/250): 6 cases - [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 2 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 2 cases - [Landing area undershoot](https://openairdocs.org/ntsb-events/370): 1 cases - [Turbulence encounter](https://openairdocs.org/ntsb-events/360): 1 cases - [Comm system malf/failure](https://openairdocs.org/ntsb-events/336): 1 cases - [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 1 cases - [Ground collision](https://openairdocs.org/ntsb-events/200): 1 cases - [Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120): 1 cases - [Landing gear not configured](https://openairdocs.org/ntsb-events/095): 1 cases ## Aircraft models (registry) - [Diamond Aircraft Ind DA20-C1](https://openairdocs.org/model/diamond-aircraft-ind-da20-c1): 2 cases - [Cessna 414](https://openairdocs.org/model/cessna-414): 2 cases - [Waco UPF-7](https://openairdocs.org/model/waco-upf-7): 1 cases - [Taylorcraft BC-65](https://openairdocs.org/model/taylorcraft-bc-65): 1 cases - [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 1 cases - [Piper PA-28R-180](https://openairdocs.org/model/piper-pa-28r-180): 1 cases - [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150): 1 cases - [Piper J3C-65](https://openairdocs.org/model/piper-j3c-65): 1 cases - [Mitsubishi MU-2B-25](https://openairdocs.org/model/mitsubishi-mu-2b-25): 1 cases - [Embraer S A ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr): 1 cases ## Other findings in the same cases - [Monitoring other aircraft](https://openairdocs.org/ntsb-findings/02021540) (Personnel issues): 6 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 5 cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 3 cases - [Identification/recognition](https://openairdocs.org/ntsb-findings/02041510) (Personnel issues): 3 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 2 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 2 cases - [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 2 cases - [Attention](https://openairdocs.org/ntsb-findings/02021510) (Personnel issues): 2 cases - [Descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040) (Aircraft): 2 cases - [Adequacy of policy/proc](https://openairdocs.org/ntsb-findings/04021015) (Organizational 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 WPR23FA092](https://openairdocs.org/ntsb/WPR23FA092), Jan 18, 2023: Cessna 414 (N4765G), Modesto, CA, substantial damage, 1 fatal. Probable cause: The pilot’s exceedance of the airplane’s critical angle of attack and failure to maintain proper airspeed during a turn to final, resulting in an aerodynamic stall and subsequent impact with terrain.… - [NTSB ERA22LA364](https://openairdocs.org/ntsb/ERA22LA364), Aug 6, 2022: Aerotek Pitts Special S-1S (N49310), Erwinna, PA, substantial damage. Probable cause: The inability of both pilots to see and avoid the collision. Contributing to the accident was the pilot of the red airplane’s decision to utilize the converging runway for takeoff, contrary to the… - [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 DCA22LA015](https://openairdocs.org/ntsb/DCA22LA015), Oct 23, 2021: Embraer S A ERJ 170-200 LR (N252NN), Miami, FL, no damage. Probable cause: An abrupt jerk of the airplane as the captain applied the parking brake during the tow that caused a flight attendant to fall and break her wrist. - [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 ERA18LA268](https://openairdocs.org/ntsb/ERA18LA268), Sep 29, 2018: Diamond DA20 (N397JA), Sebring, FL, substantial damage. Probable cause: The inability of the pilot of the Piper and the student pilot and flight instructor of the Diamond to see and avoid the other airplane. Contributing to the collision was the Piper pilot’s failure to… - [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 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.