{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":1,"name":"Pratt & Whitney JT8D-15A","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-jt8d-15a#airworthiness"},{"count":1,"name":"Pratt & Whitney JT8D-17A","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-jt8d-17a#airworthiness"},{"count":82,"name":"Pratt & Whitney JT8D series","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-jt8d-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":"1994-11-14","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/6D6C9B625B086B908625687F005C0F4A.0001","id":"94-20-09","kind":"AD","name":"Airworthiness directive 94-20-09","published":"1994-10-13","subject":"Low Pressure Turbine Blade Sets","system":"engine","type":"directive","url":"https://eflight.com/directives/94-20-09"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}