{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Covers","items":[{"count":4,"name":"Pratt & Whitney JT9D-3A","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-jt9d-3a"},{"count":1,"name":"Pratt & Whitney JT9D-7","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-jt9d-7"},{"count":13,"name":"Pratt & Whitney JT9D series","note":"","unit":"aircraft","url":"https://eflight.com/engines/pratt-whitney-jt9d-series"}],"relation":"covers"},{"group":"Held by","items":[{"count":null,"name":"Pratt & Whitney","note":"","unit":"","url":"https://eflight.com/holders/pratt-whitney"}],"relation":"held by"},{"group":"Orders","items":[{"count":64,"name":"FAA orders on these designs","note":"","unit":"airworthiness directives","url":"https://eflight.com/certificates/E20EA"},{"count":null,"name":"2021-09-10: Turbine Engine Compressor Section","note":"2021-05-27","unit":"","url":"https://eflight.com/directives/2021-09-10"},{"count":null,"name":"2012-06-14: HPT 1st stage air seals","note":"2012-04-27","unit":"","url":"https://eflight.com/directives/2012-06-14"},{"count":null,"name":"2012-04-15: Engine","note":"2012-04-23","unit":"","url":"https://eflight.com/directives/2012-04-15"},{"count":null,"name":"2011-25-10: High-pressure compressor (HPC) shafts","note":"2012-01-17","unit":"","url":"https://eflight.com/directives/2011-25-10"}],"relation":"subject to"},{"group":"More","items":[{"count":null,"name":"Every type certificate","note":"","unit":"","url":"https://eflight.com/certificates"},{"count":null,"name":"Who holds what","note":"","unit":"","url":"https://eflight.com/holders"}],"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":{"faa_document":"https://drs.faa.gov/browse/excelExternalWindow/D36293C19EE399B7862586B80063500E.0001","holder":"Pratt & Whitney","id":"E20EA","models":["JT9D-7","JT9D-7AH","JT9D-7J","JT9D-3A","JT9D-7F","JT9D-7A","JT9D-20","JT9D-7H","JT9D-20J"],"name":"Type certificate E20EA","product_type":"Engine","type":"certificate","url":"https://eflight.com/certificates/E20EA"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}