{"as_of":"2026-10-28","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":305,"name":"Douglas","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/douglas"},{"count":2,"name":"Douglas C54D-DC","note":"","unit":"registered","url":"https://eflight.com/models/douglas/c-54?variant=C54D-DC"},{"count":1,"name":"Douglas C-54","note":"","unit":"registered","url":"https://eflight.com/models/douglas/c-54?variant=C-54"},{"count":1,"name":"Douglas C-54G","note":"","unit":"registered","url":"https://eflight.com/models/douglas/c-54?variant=C-54G"},{"count":1,"name":"Douglas C54-D","note":"","unit":"registered","url":"https://eflight.com/models/douglas/c-54?variant=C54-D"},{"count":1,"name":"Douglas C54E-DC","note":"","unit":"registered","url":"https://eflight.com/models/douglas/c-54?variant=C54E-DC"},{"count":1,"name":"Douglas C54G-DC","note":"","unit":"registered","url":"https://eflight.com/models/douglas/c-54?variant=C54G-DC"},{"count":null,"name":"Built of aluminium","note":"","unit":"","url":"https://eflight.com/materials/aluminium"}],"relation":"made by"},{"group":"Engines","items":[{"count":2,"name":"Pratt & Whitney R-2000 series","note":"1450 hp","unit":"of these aircraft","url":"https://eflight.com/engines/pratt-whitney-r-2000-series"},{"count":2,"name":"Pratt & Whitney R-2000","note":"1450 hp","unit":"of these aircraft","url":"https://eflight.com/engines/pratt-whitney-r-2000"}],"relation":"powered by"},{"group":"Where they are","items":[{"count":2,"name":"Wyoming","note":"","unit":"of these aircraft","url":"https://eflight.com/states/WY"},{"count":1,"name":"Oklahoma","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OK"},{"count":1,"name":"New Jersey","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NJ"},{"count":1,"name":"Missouri","note":"","unit":"of these aircraft","url":"https://eflight.com/states/MO"},{"count":1,"name":"Florida","note":"","unit":"of these aircraft","url":"https://eflight.com/states/FL"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":1,"name":"South African Air Lease LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=South African Air Lease LLC"},{"count":1,"name":"Florida Air Transport INC","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=Florida Air Transport INC"},{"count":1,"name":"Berlin Airlift Historial Foundation","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=Berlin Airlift Historial Foundation"},{"count":1,"name":"Alaska Air Fuel In","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=Alaska Air Fuel In"},{"count":1,"name":"Aircraft Guaranty CORP Trustee","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/aircraft-guaranty-corp-trustee"}],"relation":"owned by"},{"group":"Record","items":[{"count":4,"name":"NTSB accidents and incidents involving the C-54","note":"1 fatal","unit":"cases since 1982","url":"https://eflight.com/models/douglas/c-54#accidents"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":44,"name":"FAA orders naming the C-54","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/douglas/c-54#airworthiness"},{"count":105,"name":"Failure reports filed on the C-54","note":"","unit":"reports since 1995","url":"https://eflight.com/models/douglas/c-54#airworthiness"},{"count":49,"name":"Approved modifications for the C-54","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/douglas/c-54#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accidents by model, with rates per thousand registered","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"},{"count":null,"name":"The fleet by kind, state and age","note":"","unit":"","url":"https://eflight.com/analytics/fleet"},{"count":null,"name":"Biggest makers and model families","note":"","unit":"","url":"https://eflight.com/analytics/makers"}],"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":{"built_of":{"material":"aluminium","name":"aluminium","note":null},"id":"douglas/c-54","name":"Douglas C-54","registered":7,"type":"model","url":"https://eflight.com/models/douglas/c-54","versions":6},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}