{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Covers","items":[{"count":33,"name":"Grumman HU-16","note":"","unit":"registered","url":"https://eflight.com/models/grumman/hu-16"}],"relation":"covers"},{"group":"Held by","items":[{"count":null,"name":"Amphibian Aerospace Industries Defense, INC., A Delaware Corporation (Delaware File No. 10288788), C/O Dunlap Bennett & Ludwig, Pllc","note":"","unit":"","url":"https://eflight.com/holders/amphibian-aerospace-industries-defense-inc-a-delaware-corporation-delaware-file-no-10288788-c-o-dunlap-bennett-ludwig-pllc"}],"relation":"held by"},{"group":"Orders","items":[{"count":2,"name":"FAA orders on these designs","note":"","unit":"airworthiness directives","url":"https://eflight.com/certificates/A33SO"},{"count":null,"name":"2026-13-02: Navigation","note":"2026-07-01","unit":"","url":"https://eflight.com/directives/2026-13-02"},{"count":null,"name":"2023-10-02: Indicating/Recording System, Navigation","note":"2023-05-26","unit":"","url":"https://eflight.com/directives/2023-10-02"}],"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/DRSDOCID186289864220260701131118.0001","holder":"Amphibian Aerospace Industries Defense, Inc., a Delaware corporation (Delaware file no. 10288788), c/o Dunlap Bennett & Ludwig, PLLC","id":"A33SO","models":["HU-16E (UF-2G)","HU-16B","HU-16A","HU-16D (UF-2)","Wright F1820-76A","Wright F1820-76B","Wright F1820-76C","Wright F1820-76D","HU-16C (UF-1, UF-1G)"],"name":"Type certificate A33SO","product_type":"Aircraft","type":"certificate","url":"https://eflight.com/certificates/A33SO"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}