{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":34,"name":"Bell UH-1 Huey (Iroquois)","note":"","unit":"with this engine series","url":"https://eflight.com/models/bell/uh-1"},{"count":8,"name":"Bell 205","note":"","unit":"with this engine series","url":"https://eflight.com/models/bell/205"},{"count":2,"name":"Bell AH-1","note":"","unit":"with this engine series","url":"https://eflight.com/models/bell/ah-1"},{"count":2,"name":"Bell TAH-1","note":"","unit":"with this engine series","url":"https://eflight.com/models/bell/tah-1"},{"count":2,"name":"Garlick Helicopters Inc UH-1","note":"","unit":"with this engine series","url":"https://eflight.com/models/garlick-helicopters-inc/uh-1"},{"count":2,"name":"Williams Helicopter Corp UH-1","note":"","unit":"with this engine series","url":"https://eflight.com/models/williams-helicopter-corp/uh-1"},{"count":1,"name":"Bell 204","note":"","unit":"with this engine series","url":"https://eflight.com/models/bell/204"}],"relation":"powers"},{"group":"Where they are","items":[{"count":16,"name":"California","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CA"},{"count":7,"name":"Montana","note":"","unit":"of these aircraft","url":"https://eflight.com/states/MT"},{"count":6,"name":"Florida","note":"","unit":"of these aircraft","url":"https://eflight.com/states/FL"},{"count":4,"name":"Georgia","note":"","unit":"of these aircraft","url":"https://eflight.com/states/GA"},{"count":3,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":3,"name":"Brown Helicopter INC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/brown-helicopter-inc"},{"count":2,"name":"West Valley Aviation INC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/west-valley-aviation-inc"},{"count":2,"name":"R & R Conner Aviation LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/r-r-conner-aviation-llc"},{"count":2,"name":"Lrh Equipment LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/lrh-equipment-llc"}],"relation":"owned by"},{"group":"Airworthiness","items":[{"count":9,"name":"Failure reports on the Lycoming T-53","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/lycoming-t-53#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":60,"horsepower":1150,"id":"lycoming-t-53","maker":"Lycoming","name":"Lycoming T-53","thrust_lb":null,"type":"Turboshaft","url":"https://eflight.com/engines/lycoming-t-53"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}