{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":5,"name":"Erickson S-64","note":"","unit":"registered","url":"https://eflight.com/models/erickson/s-64#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Airframe structure","note":"","unit":"","url":"https://eflight.com/systems/structure"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaced by 2012-26-06","note":"","unit":"","url":"https://eflight.com/directives/2012-26-06"}],"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":"1997-06-27","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/13B32893056926B486256A4D004EF9F5.0001","id":"97-10-15","kind":"AD","name":"Airworthiness directive 97-10-15","published":"1997-05-23","subject":"Main Gearbox Second Stage Lower Planetary Plate","system":"structure","type":"directive","url":"https://eflight.com/directives/97-10-15"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}