{"as_of":"2026-10-08","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Flies","items":[{"count":2,"name":"Pilatus PC-12","note":"","unit":"on the certificate","url":"https://eflight.com/models/pilatus/pc-12"},{"count":2,"name":"Pilatus PC-24","note":"","unit":"on the certificate","url":"https://eflight.com/models/pilatus/pc-24"},{"count":4,"name":"Pilatus Aircraft Ltd","note":"","unit":"on the certificate","url":"https://eflight.com/makers/pilatus-aircraft-ltd"}],"relation":"flies"},{"group":"Where","items":[{"count":null,"name":"Grand Rapids, MI","note":"where it registers its own aircraft","unit":"","url":""},{"count":null,"name":"Gerald R Ford International","note":"GRR","unit":"","url":"https://eflight.com/airports/GRR"},{"count":7213,"name":"Michigan","note":"","unit":"aircraft registered","url":"https://eflight.com/states/MI"}],"relation":"based in"},{"group":"Certificates and records","items":[{"count":4,"name":"FAA charter and air-taxi certificate","note":"designator OTTA","unit":"aircraft listed","url":""}],"relation":"holds"},{"group":"Aircraft","items":[{"count":null,"name":"N221DE","note":"Pilatus Aircraft Ltd PC-12/47E","unit":"","url":"https://eflight.com/aircraft/N221DE"},{"count":null,"name":"N222DE","note":"Pilatus Aircraft Ltd PC-12/47E","unit":"","url":"https://eflight.com/aircraft/N222DE"},{"count":null,"name":"N224DE","note":"Pilatus Aircraft Ltd PC-24","unit":"","url":"https://eflight.com/aircraft/N224DE"},{"count":null,"name":"N225DE","note":"Pilatus Aircraft Ltd PC-24","unit":"","url":"https://eflight.com/aircraft/N225DE"}],"relation":"lists on its certificate"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"aircraft_listed":4,"base_city":"Grand Rapids","base_state":"MI","callsign":null,"certificate":"135","code":null,"designator":"OTTA","dot_authority":null,"id":"otter-air-services-llc","name":"Otter Air Services LLC","type":"operator","url":"https://eflight.com/operators/otter-air-services-llc"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}