{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Covers","items":[{"count":1,"name":"Menasco BUCCANEER B6S","note":"","unit":"aircraft","url":"https://eflight.com/engines/menasco-buccaneer-b6s"}],"relation":"covers"},{"group":"Held by","items":[{"count":null,"name":"Menasco Manufacturing CO.","note":"","unit":"","url":"https://eflight.com/holders/menasco-manufacturing-co"}],"relation":"held by"},{"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/FFDFA6FE81869DA9862572C0006F824E.0001","holder":"Menasco Manufacturing Co.","id":"ATC 139 Menasco","models":["Buccaneer B6S"],"name":"Type certificate ATC 139 Menasco","product_type":"Engine","type":"certificate","url":"https://eflight.com/certificates/ATC 139 Menasco"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}