{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":3,"name":"Lycoming IO-540-G1B5","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-io-540-g1b5#airworthiness"},{"count":2,"name":"Lycoming IO-540-K1F5","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-io-540-k1f5#airworthiness"},{"count":4,"name":"Lycoming IO-540-P1A5","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-io-540-p1a5#airworthiness"},{"count":10,"name":"Lycoming IO-540-S1A5","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-io-540-s1a5#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":"1978-11-07","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/9852E32769A646BF8625682C007720CA.0001","id":"78-23-08","kind":"AD","name":"Airworthiness directive 78-23-08","published":"","subject":"Fuel Pump To Fuel Injector Tube Elbow","system":"engine","type":"directive","url":"https://eflight.com/directives/78-23-08"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}