{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":3,"name":"Lycoming VO-540-B1B3","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-vo-540-b1b3#airworthiness"},{"count":6,"name":"Lycoming VO-540-C2A","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-vo-540-c2a#airworthiness"},{"count":110,"name":"Lycoming VO-540 series","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-vo-540-series#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":"1974-07-09","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/3DC77BFA3264218C86256E120055B22E.0001","id":"73-05-01","kind":"AD","name":"Airworthiness directive 73-05-01","published":"","subject":"Connecting Rod Bearing Assemblies","system":"engine","type":"directive","url":"https://eflight.com/directives/73-05-01"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}