{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Models most reported","items":[{"count":181,"name":"Bombardier DHC-8 Dash 8 and Q400","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/bombardier/dhc-8#airworthiness"},{"count":31,"name":"Dehavilland DHC-8","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/dehavilland/dhc-8#airworthiness"},{"count":30,"name":"Boeing Of Canada/Dehav Div DHC-8","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/boeing-of-canada-dehav-div/dhc-8#airworthiness"},{"count":22,"name":"Diamond Aircraft DA 42 Twin Star","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/diamond-aircraft/da-42#airworthiness"},{"count":18,"name":"Lockheed 382","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/lockheed/382#airworthiness"},{"count":17,"name":"Cessna 172 Skyhawk","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/cessna/172#airworthiness"},{"count":16,"name":"Piper PA-28 Cherokee, Warrior, Archer and Arrow","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/piper/pa-28#airworthiness"},{"count":14,"name":"Beechcraft 300 King Air 300","note":"","unit":"failure reports in ten years","url":"https://eflight.com/models/beechcraft/300#airworthiness"}],"relation":"reported on"},{"group":"Engine series most reported","items":[{"count":20,"name":"Pratt & Whitney Canada PW150A","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/pratt-whitney-canada-pw150a#airworthiness"},{"count":15,"name":"Austro Engine E4P(series","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/austro-engine-e4p-series#airworthiness"},{"count":15,"name":"Pratt & Whitney PT6A series","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/pratt-whitney-pt6a-series#airworthiness"},{"count":10,"name":"General Electric CT7-9B","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/general-electric-ct7-9b#airworthiness"},{"count":9,"name":"Lycoming O-360-A1H6","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/lycoming-o-360-a1h6#airworthiness"},{"count":4,"name":"General Electric CT7-5A2","note":"","unit":"failure reports in ten years","url":"https://eflight.com/engines/general-electric-ct7-5a2#airworthiness"}],"relation":"reported on"},{"group":"Orders","items":[{"count":0,"name":"FAA orders on propeller","note":"","unit":"airworthiness directives","url":"https://eflight.com/directives?system=propeller"}],"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":487,"id":"propeller","name":"Propeller","type":"system","url":"https://eflight.com/systems/propeller"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}
