{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":11,"name":"Messerschmitt-Boelkow-Blohm BO-105","note":"","unit":"registered","url":"https://eflight.com/models/messerschmitt-boelkow-blohm/bo-105#airworthiness"},{"count":20,"name":"Messerschmitt-Bolkow-Blohm BO 105","note":"","unit":"registered","url":"https://eflight.com/models/messerschmitt-bolkow-blohm/bo-105#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Rotorcraft systems","note":"","unit":"","url":"https://eflight.com/systems/rotorcraft"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaced by 2021-07-08","note":"","unit":"","url":"https://eflight.com/directives/2021-07-08"}],"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":"1997-12-31","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/1875782DFF0977C786256A4D006B17CF.0001","id":"97-26-02","kind":"AD","name":"Airworthiness directive 97-26-02","published":"1997-12-16","subject":"Main Rotor Mast Flange Crack Inspection","system":"rotorcraft","type":"directive","url":"https://eflight.com/directives/97-26-02"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}