{"as_of":"2026-10-12","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":4,"name":"Fairchild SA227","note":"","unit":"with this engine series","url":"https://eflight.com/models/fairchild/sa227"},{"count":2,"name":"Cessna 441 Conquest II","note":"","unit":"with this engine series","url":"https://eflight.com/models/cessna/441"},{"count":1,"name":"Aero Commander 690","note":"","unit":"with this engine series","url":"https://eflight.com/models/aero-commander/690"},{"count":1,"name":"Dornier DORNIER 228","note":"","unit":"with this engine series","url":"https://eflight.com/models/dornier/dornier-228"},{"count":1,"name":"Piper PA-42","note":"","unit":"with this engine series","url":"https://eflight.com/models/piper/pa-42"},{"count":1,"name":"Rockwell International 690","note":"","unit":"with this engine series","url":"https://eflight.com/models/rockwell-international/690"}],"relation":"powers"},{"group":"Where they are","items":[{"count":2,"name":"Nebraska","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NE"},{"count":2,"name":"Florida","note":"","unit":"of these aircraft","url":"https://eflight.com/states/FL"},{"count":1,"name":"Wyoming","note":"","unit":"of these aircraft","url":"https://eflight.com/states/WY"},{"count":1,"name":"Wisconsin","note":"","unit":"of these aircraft","url":"https://eflight.com/states/WI"},{"count":1,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"}],"relation":"registered in"},{"group":"Airworthiness","items":[{"count":19,"name":"Failure reports on the AlliedSignal (Honeywell) TPE331-12UHR","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/alliedsignal-honeywell-tpe331-12uhr#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":10,"horsepower":1100,"id":"alliedsignal-honeywell-tpe331-12uhr","maker":"AlliedSignal (Honeywell)","name":"AlliedSignal (Honeywell) TPE331-12UHR","thrust_lb":null,"type":"Turboprop","url":"https://eflight.com/engines/alliedsignal-honeywell-tpe331-12uhr"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}