{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":18,"name":"Beechcraft B36 Bonanza","note":"","unit":"with this engine series","url":"https://eflight.com/models/beechcraft/b36"},{"count":6,"name":"Beechcraft A36 Bonanza","note":"","unit":"with this engine series","url":"https://eflight.com/models/beechcraft/a36"},{"count":1,"name":"Beechcraft T-34","note":"","unit":"with this engine series","url":"https://eflight.com/models/beechcraft/t-34"},{"count":1,"name":"Cessna T207","note":"","unit":"with this engine series","url":"https://eflight.com/models/cessna/t207"}],"relation":"powers"},{"group":"Where they are","items":[{"count":6,"name":"Florida","note":"","unit":"of these aircraft","url":"https://eflight.com/states/FL"},{"count":5,"name":"California","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CA"},{"count":2,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":2,"name":"New York","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NY"},{"count":1,"name":"Wyoming","note":"","unit":"of these aircraft","url":"https://eflight.com/states/WY"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":2,"name":"Qualitair LLC Trustee","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/qualitair-llc-trustee"}],"relation":"owned by"},{"group":"Airworthiness","items":[{"count":37,"name":"FAA orders naming the Continental TSIO-520-UB","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/continental-tsio-520-ub#airworthiness"},{"count":31,"name":"Failure reports on the Continental TSIO-520-UB","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/continental-tsio-520-ub#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":27,"horsepower":300,"id":"continental-tsio-520-ub","maker":"Continental","name":"Continental TSIO-520-UB","thrust_lb":null,"type":"Piston (reciprocating)","url":"https://eflight.com/engines/continental-tsio-520-ub"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}