{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":115,"name":"Pratt & Whitney PW2037","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-pw2037#airworthiness"},{"count":88,"name":"Pratt & Whitney PW2040","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-pw2040#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":"2021-09-01","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/67F227DB7D76DB87862587200053034D.0001","id":"2021-14-13","kind":"AD","name":"Airworthiness directive 2021-14-13","published":"2021-07-28","subject":"Turbine Section","system":"engine","type":"directive","url":"https://eflight.com/directives/2021-14-13"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}