{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":1,"name":"Turbomeca (Safran) ARRIEL 2C1","note":"","unit":"aircraft","url":"https://eflight.com/engines/turbomeca-safran-arriel-2c1#airworthiness"},{"count":8,"name":"Turbomeca (Safran) ARRIEL 2C2","note":"","unit":"aircraft","url":"https://eflight.com/engines/turbomeca-safran-arriel-2c2#airworthiness"},{"count":57,"name":"Turbomeca (Safran) ARRIEL 2S2","note":"","unit":"aircraft","url":"https://eflight.com/engines/turbomeca-safran-arriel-2s2#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":"2012-07-26","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/E376BDB363DC827A86257A240045CFC3.0001","id":"2012-12-20","kind":"AD","name":"Airworthiness directive 2012-12-20","published":"2012-06-21","subject":"Digital engine control units","system":"engine","type":"directive","url":"https://eflight.com/directives/2012-12-20"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}