{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":1,"name":"General Electric CF34-8C1","note":"","unit":"aircraft","url":"https://eflight.com/engines/general-electric-cf34-8c1#airworthiness"},{"count":271,"name":"General Electric CF34-8C5","note":"","unit":"aircraft","url":"https://eflight.com/engines/general-electric-cf34-8c5#airworthiness"},{"count":10,"name":"General Electric CF34-8C5A1","note":"","unit":"aircraft","url":"https://eflight.com/engines/general-electric-cf34-8c5a1#airworthiness"},{"count":133,"name":"General Electric CF34-8C5B1","note":"","unit":"aircraft","url":"https://eflight.com/engines/general-electric-cf34-8c5b1#airworthiness"},{"count":698,"name":"General Electric CF34-8E5","note":"","unit":"aircraft","url":"https://eflight.com/engines/general-electric-cf34-8e5#airworthiness"},{"count":3,"name":"General Electric CF34-8E5A2","note":"","unit":"aircraft","url":"https://eflight.com/engines/general-electric-cf34-8e5a2#airworthiness"},{"count":674,"name":"General Electric CF34 series","note":"","unit":"aircraft","url":"https://eflight.com/engines/general-electric-cf34-series#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Engine","note":"","unit":"","url":"https://eflight.com/systems/engine"}],"relation":"about"},{"group":"More","items":[{"count":null,"name":"Every FAA order","note":"","unit":"","url":"https://eflight.com/directives"},{"count":null,"name":"Every aircraft system","note":"","unit":"","url":"https://eflight.com/systems"}],"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":{"effective":"2021-10-22","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/3C7177AF0B70D50A8625875300524927.0001","id":"2021-18-13","kind":"AD","name":"Airworthiness directive 2021-18-13","published":"2021-09-17","subject":"Turbine Engine Combustion Section","system":"engine","type":"directive","url":"https://eflight.com/directives/2021-18-13"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}