Coast Guard search for plane with 6 aboard that declared emergency on a trip from Bermuda to Boston

An air ambulance carrying six people may have been “coming in blind” with electrical problems when a storm loomed ahead of it early Saturday shortly before it vanished in the waters off Nantucket.

The pilot reported electrical problems and declared an emergency as it approached the coast on the flight from Bermuda, according to air traffic control audio posted by LiveATC.net. “Roger, you said you’re coming in blind. Is that what you said?” a controller can be heard asking the pilot.

That makes Mary Schiavo, who is a former Inspector General of the Transportation Department, think the plane may have lost its navigational instruments just as a storm moved across its path on radar. The plane also descended sharply from its cruising altitude of around 24,000 feet to around 10,000 feet, according to preliminary data from flight tracking site FlightRadar24.

“Something bad happened with this big drop, and they flew into this big storm. It’s a terrible place to have a loss of your instruments and be flying blind,” said Schiavo, who is an aviation attorney. “It’s very easy to get disoriented and not know if you’re turning, climbing, descending, etc. Spatial orientation hits pretty quickly.”

The Canadian-registered air ambulance jet had four crew members and two passengers aboard when it departed Bermuda’s L.F. Wade International Airport overnight for the flight to Massachusetts, according to a statement from the Bermuda airport's operator, Skyport.

Four of the six people on board the flight that went missing early Saturday were Canadian nationals, the country’s Minister of Transport Steven MacKinnon said on X. Transport Canada is closely monitoring and working with authorities on search and rescue efforts, he said.

The Coast Guard said the Federal Aviation Administration reported that the Gulfstream G100 had lost contact very early Saturday morning. The search for the jet included crews in the air and on the water, the Coast Guard said.

The National Transportation Safety Board said it was gathering information about the situation Saturday, but did not say immediately if it would investigate.