The Gulfstream G100 Astra SPX, operated by Latitude Air Ambulance, declared an emergency of an unknown nature around 12:30 a.m. Eastern before descending 9,000 feet in two minutes and losing contact. The U.S. Coast Guard suspended its search at sunset on Monday after 66 hours of operations and the discovery of a debris field roughly 80 to 90 feet across south of Nantucket.
