{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Models most reported","items":[{"count":5284,"name":"Boeing 737","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/boeing/737#airworthiness"},{"count":1817,"name":"Boeing 767","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/boeing/767#airworthiness"},{"count":423,"name":"Boeing 757","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/boeing/757#airworthiness"},{"count":400,"name":"Airbus A321","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/airbus/a321#airworthiness"},{"count":338,"name":"Airbus A320","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/airbus/a320#airworthiness"},{"count":333,"name":"Bombardier CL-600 Challenger and CRJ","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/bombardier/cl-600#airworthiness"},{"count":327,"name":"Embraer EMB-145 ERJ 145","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/embraer/emb-145#airworthiness"},{"count":251,"name":"Airbus A330","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/airbus/a330#airworthiness"}],"relation":"reported on"},{"group":"Engine series most reported","items":[{"count":19,"name":"Pratt & Whitney PT6A series","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/pratt-whitney-pt6a-series#airworthiness"},{"count":13,"name":"General Electric CF6-80C2B6F","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/general-electric-cf6-80c2b6f#airworthiness"},{"count":13,"name":"General Electric CFM56 series","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/general-electric-cfm56-series#airworthiness"},{"count":12,"name":"CFM International CFM56-5B4/3","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/cfm-international-cfm56-5b4-3#airworthiness"},{"count":11,"name":"Lycoming IO-540-AE1A5","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/lycoming-io-540-ae1a5#airworthiness"},{"count":10,"name":"CFM International CFM56-7B27E","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/cfm-international-cfm56-7b27e#airworthiness"}],"relation":"reported on"},{"group":"Orders","items":[{"count":0,"name":"FAA orders on instruments and avionics","note":"","unit":"airworthiness directives","url":"https://eflight.com/directives?system=avionics"}],"relation":"governed by"},{"group":"More","items":[{"count":null,"name":"Every aircraft system","note":"","unit":"","url":"https://eflight.com/systems"},{"count":null,"name":"Every FAA order","note":"","unit":"","url":"https://eflight.com/directives"}],"relation":"see also"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"faa_orders":0,"failure_reports_10_years":10678,"id":"avionics","name":"Instruments and avionics","type":"system","url":"https://eflight.com/systems/avionics"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}