{"as_of":"2026-11-02","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":172,"name":"Pratt & Whitney Canada PT6A-42","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-canada-pt6a-42#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":"1986-06-05","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/30BD496B7D502E56862568400060C254.0001","id":"86-10-05","kind":"AD","name":"Airworthiness directive 86-10-05","published":"","subject":"First Stage Compressor Hub","system":"engine","type":"directive","url":"https://eflight.com/directives/86-10-05"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}