{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":4,"name":"Honeywell ALF 502 series","note":"","unit":"aircraft","url":"https://eflight.com/engines/honeywell-alf-502-series#airworthiness"},{"count":2,"name":"Honeywell ALF502R-5","note":"","unit":"aircraft","url":"https://eflight.com/engines/honeywell-alf502r-5#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":"1990-11-13","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/AC30E714453A338D8625686200630418.0001","id":"90-24-01","kind":"AD","name":"Airworthiness directive 90-24-01","published":"","subject":"High Compressor Disks","system":"engine","type":"directive","url":"https://eflight.com/directives/90-24-01"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}