{"as_of":"2026-10-08","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":8,"name":"Dehavilland DHC-8","note":"","unit":"with this engine series","url":"https://eflight.com/models/dehavilland/dhc-8"},{"count":7,"name":"Bombardier DHC-8 Dash 8 and Q400","note":"","unit":"with this engine series","url":"https://eflight.com/models/bombardier/dhc-8"}],"relation":"powers"},{"group":"Where they are","items":[{"count":4,"name":"Ohio","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OH"},{"count":4,"name":"District of Columbia","note":"","unit":"of these aircraft","url":"https://eflight.com/states/DC"},{"count":3,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":2,"name":"Utah","note":"","unit":"of these aircraft","url":"https://eflight.com/states/UT"},{"count":2,"name":"Florida","note":"","unit":"of these aircraft","url":"https://eflight.com/states/FL"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":3,"name":"Berry Aviation INC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/berry-aviation-inc"},{"count":2,"name":"US Special Operations Command","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/us-special-operations-command"},{"count":2,"name":"US Department Of Homeland Security","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/us-department-of-homeland-security"},{"count":2,"name":"Department Of Homeland Security","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/department-of-homeland-security"}],"relation":"owned by"},{"group":"Airworthiness","items":[{"count":8,"name":"FAA orders naming the Pratt & Whitney Canada PW123D","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/pratt-whitney-canada-pw123d#airworthiness"},{"count":355,"name":"Failure reports on the Pratt & Whitney Canada PW123D","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/pratt-whitney-canada-pw123d#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":15,"horsepower":1950,"id":"pratt-whitney-canada-pw123d","maker":"Pratt & Whitney Canada","name":"Pratt & Whitney Canada PW123D","thrust_lb":null,"type":"Turboprop","url":"https://eflight.com/engines/pratt-whitney-canada-pw123d"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}