{"as_of":"2026-10-12","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":2,"name":"Aerovodochody L-29","note":"","unit":"with this engine series","url":"https://eflight.com/models/aerovodochody/l-29"},{"count":1,"name":"North American NA-265","note":"","unit":"with this engine series","url":"https://eflight.com/models/north-american/na-265"}],"relation":"powers"},{"group":"Where they are","items":[{"count":1,"name":"Utah","note":"","unit":"of these aircraft","url":"https://eflight.com/states/UT"},{"count":1,"name":"Oklahoma","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OK"},{"count":1,"name":"Delaware","note":"","unit":"of these aircraft","url":"https://eflight.com/states/DE"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":1,"name":"Tulsa Technology Center School District No 18","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/tulsa-technology-center-school-district-no-18"}],"relation":"owned by"},{"group":"Airworthiness","items":[{"count":733,"name":"Failure reports on the Pratt & Whitney JT12A series","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/pratt-whitney-jt12a-series#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":3,"horsepower":null,"id":"pratt-whitney-jt12a-series","maker":"Pratt & Whitney","name":"Pratt & Whitney JT12A series","thrust_lb":1320,"type":"Turbojet","url":"https://eflight.com/engines/pratt-whitney-jt12a-series"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}
