{"as_of":"2026-11-03","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":182,"name":"Rolls-Royce RB-211 series","note":"","unit":"aircraft","url":"https://eflight.com/engines/rolls-royce-rb-211-series#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Engine","note":"","unit":"","url":"https://eflight.com/systems/engine"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaces 2003-15-06","note":"","unit":"","url":"https://eflight.com/directives/2003-15-06"}],"relation":"related to"},{"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":"2009-11-20","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/5EF37F756BAD075B86257651004ADE4B.0001","id":"2009-21-09","kind":"AD","name":"Airworthiness directive 2009-21-09","published":"2009-10-16","subject":"High-pressure (HP) compressor rotor rear stage 5 and 6 discs and cone shafts","system":"engine","type":"directive","url":"https://eflight.com/directives/2009-21-09"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}