The Transportation Safety Board of Canada has recovered the cockpit voice recorder of an aircraft that went missing after departing Bermuda for Boston last month with six people on board.

A spokesman for the TSB said on Monday that the agency, working in tandem with the Royal Canadian Mounted Police and the Canadian Coast Guard, also recovered the upper-third section of the Gulfstream jet’s cockpit.

Both will be transported to the TSB’s engineering laboratory in Ottawa for further examination, he added.

The TSB is leading the investigation into the incident with support from the United States National Transportation Safety Board.

The Canadian-registered Gulfstream C100 aircraft, bearing registration C-GRJ and operated by Latitude Air Ambulance, went missing on October 3 after departing LF Wade International Airport for Boston.

The aircraft, one of four Gulfstream models in the company’s fleet, departed Bermuda at about 12.41am and climbed to 24,000 feet, its cruising altitude for the flight.

According to Flightaware.com, the aircraft maintained the altitude until 1.04am Eastern Standard Time — 2.04am Bermuda time — when it dropped rapidly from 24,000 feet to 11,000 feet.

It was tracked for another four minutes at that altitude until Boston’s air traffic control lost contact.

It was approaching the Boston area when the crew reported electrical difficulties.

The aircraft was flying under the call sign Heartbeat 104, and air traffic control lost contact with the crew south of the island of Nantucket, off Massachusetts.

The pilot had informed Boston ATC that he was “coming in blind” as he declared an emergency.

Debris from the aircraft was found by a civilian vessel off Nantucket the following day, the US Coast Guard confirmed.

The Bermudians on board were named by police on the island as Marilyn Lavonne Bean and her son, Sergio Wayne Lottimore.

The four-strong Canadian crew were later named by the US Coast Guard as Captain Philip Gregory Childerhose, First Officer Thomas Henry Farquhar, Sarah Jane Paton, a flight nurse, and Jolene Beth Weir, a respiratory therapist.

The TSB said investigations into the incident continue.

A memorial service for Ms Bean and Mr Lottimore will be held on Sunday at 1pm at the Cathedral of the Most Holy Trinity in Hamilton.

An obituary notice in The Royal Gazette said that Ms Bean, a mother of four, and Mr Lottimore were much loved by their relatives and friends.

Attendees have been requested to dress in black.