# VHF communication system - 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) › VHF communication system - NTSB code: 01022312 - Cases: 6 - In the probable cause: 4 - Fatal cases: 2 - All cases: https://openairdocs.org/ntsb-findings/01022312/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01022312/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01022312 ## Cases per year (in the probable cause / all) - 2010: 1 / 2 - 2016: 1 / 1 - 2018: 1 / 1 - 2022: 1 / 1 - 2023: 0 / 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 - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 1 cases - [Ground collision](https://openairdocs.org/ntsb-events/200): 1 cases ## Aircraft models (registry) - [Diamond Aircraft Ind DA20-C1](https://openairdocs.org/model/diamond-aircraft-ind-da20-c1): 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 - [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 - [Cessna 414](https://openairdocs.org/model/cessna-414): 1 cases - [Beech F33A](https://openairdocs.org/model/beech-f33a): 1 cases ## Other findings in the same cases - [Monitoring other aircraft](https://openairdocs.org/ntsb-findings/02021540) (Personnel issues): 3 cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 2 cases - [Identification/recognition](https://openairdocs.org/ntsb-findings/02041510) (Personnel issues): 2 cases - [Task overload](https://openairdocs.org/ntsb-findings/02064025) (Personnel issues): 1 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 1 cases - [Use of policy/procedure](https://openairdocs.org/ntsb-findings/02063032) (Personnel issues): 1 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 1 cases - [Monitoring environment](https://openairdocs.org/ntsb-findings/02021545) (Personnel issues): 1 cases - [Attention](https://openairdocs.org/ntsb-findings/02021510) (Personnel issues): 1 cases - [Lateral/bank control](https://openairdocs.org/ntsb-findings/01062023) (Aircraft): 1 cases ## Newest cases - [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 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 ERA16FA312](https://openairdocs.org/ntsb/ERA16FA312), Sep 7, 2016: Beech F33 (N6027K), Carrollton, GA, substantial damage, 3 fatal. Probable cause: The failure of the Beech pilot to see and avoid the Diamond that was in front of and below his airplane on final approach and his use of an incorrect radio communication frequency for the airport. - [NTSB WPR11LA068](https://openairdocs.org/ntsb/WPR11LA068), Dec 1, 2010: Taylorcraft BC-65 (N23619), Madras, OR, minor damage. Probable cause: The failure of both pilots to see and avoid the other airplane while in the traffic pattern to land, which resulted in a midair collision. - [NTSB ANC10LA094](https://openairdocs.org/ntsb/ANC10LA094), Sep 16, 2010: Piper PA-18 (N9699P), Dillingham, AK, substantial damage. Probable cause: Both pilots’ failure to see and avoid each other during initial climb, resulting in a midair collision. Contributing to the accident was the pilot of N9699P’s inability to use his airplane's radio… 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.