{"as_of":"2026-11-09","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":2,"name":"William M Oprendek","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/william-m-oprendek"}],"relation":"is a"},{"group":"Engine","items":[{"count":202,"name":"Superior Air Parts IO-360 series","note":"180 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/superior-air-parts-io-360-series"}],"relation":"powered by"},{"group":"Record","items":[{"count":null,"name":"No NTSB accident or incident record under this tail number","note":"","unit":"","url":"https://eflight.com/aircraft/N27WP#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":6,"name":"FAA orders naming the Superior Air Parts IO-360 series","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/superior-air-parts-io-360-series#airworthiness"},{"count":null,"name":"Report filed on this aircraft: Outflow Valve, defective","note":"2009-12-07","unit":"","url":"https://eflight.com/systems/utility"},{"count":null,"name":"Report filed on this aircraft: Sensor, loose","note":"2000-02-24","unit":"","url":"https://eflight.com/systems/engine"}],"relation":"subject to"},{"group":"Live","items":[{"count":null,"name":"Where N27WP is now","note":"","unit":"","url":"https://eflight.com/live?q=N27WP"}],"relation":"seen at"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"built_of":null,"id":"N27WP","maker":"William M Oprendek","model":"PITTS S1S","name":"William M Oprendek PITTS S1S N27WP","state":"","type":"aircraft","url":"https://eflight.com/aircraft/N27WP","year_built":2019},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}