{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":29,"name":"Sikorsky S-70","note":"","unit":"registered","url":"https://eflight.com/models/sikorsky/s-70#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Rotorcraft systems","note":"","unit":"","url":"https://eflight.com/systems/rotorcraft"}],"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":"2014-02-25","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/C662118B9BE41A3286257C67004AFBA6.0001","id":"2013-25-13","kind":"AD","name":"Airworthiness directive 2013-25-13","published":"2014-01-21","subject":"Main Rotor Hub, Main Rotor Mast/Swashplate, Main Rotor Gearbox,  \n Engine/Transmission Coupling, Tail Rotor Drive Shaft","system":"rotorcraft","type":"directive","url":"https://eflight.com/directives/2013-25-13"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}