{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":1,"name":"Eagle Aircraft Co EAGLE DW-1","note":"","unit":"with this engine series","url":"https://eflight.com/models/eagle-aircraft-co/eagle-dw-1"}],"relation":"powers"},{"group":"Where they are","items":[{"count":1,"name":"Pennsylvania","note":"","unit":"of these aircraft","url":"https://eflight.com/states/PA"},{"count":1,"name":"Montana","note":"","unit":"of these aircraft","url":"https://eflight.com/states/MT"}],"relation":"registered in"},{"group":"Airworthiness","items":[{"count":28,"name":"FAA orders naming the Lycoming IO-540-M1B5D","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/lycoming-io-540-m1b5d#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"The fleet by engine type","note":"","unit":"","url":"https://eflight.com/analytics/fleet"},{"count":null,"name":"Every engine series","note":"","unit":"","url":"https://eflight.com/engines"}],"relation":"compared in"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"aircraft":2,"horsepower":300,"id":"lycoming-io-540-m1b5d","maker":"Lycoming","name":"Lycoming IO-540-M1B5D","thrust_lb":null,"type":"Piston (reciprocating)","url":"https://eflight.com/engines/lycoming-io-540-m1b5d"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}