{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Covers","items":[{"count":7,"name":"Sikorsky UH-19","note":"","unit":"registered","url":"https://eflight.com/models/sikorsky/uh-19"}],"relation":"covers"},{"group":"Held by","items":[{"count":null,"name":"Orlando Helicopter Airways INC.","note":"","unit":"","url":"https://eflight.com/holders/orlando-helicopter-airways-inc"}],"relation":"held by"},{"group":"Orders","items":[{"count":1,"name":"FAA orders on these designs","note":"","unit":"airworthiness directives","url":"https://eflight.com/certificates/HR1SO"},{"count":null,"name":"75-04-02: Main Rotor Spindles","note":"1975-02-19","unit":"","url":"https://eflight.com/directives/75-04-02"}],"relation":"subject to"},{"group":"More","items":[{"count":null,"name":"Every type certificate","note":"","unit":"","url":"https://eflight.com/certificates"},{"count":null,"name":"Who holds what","note":"","unit":"","url":"https://eflight.com/holders"}],"relation":"see also"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"faa_document":"https://drs.faa.gov/browse/excelExternalWindow/ABC1FE0A127203B786256F3C005EB334.0001","holder":"Orlando Helicopter Airways Inc.","id":"HR1SO","models":["UH-19C","CH-19E","H-19A","HRS-3/H-19B","UH-19D","H-19G","UH-19F","H-19D","YH-19A","HRS-1/CH-19"],"name":"Type certificate HR1SO","product_type":"Aircraft","type":"certificate","url":"https://eflight.com/certificates/HR1SO"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}