Search Ends, Investigation Begins: All Six Aboard the "Heartbeat 104" Medical Jet Identified; Canada's TSB Leads Investigation A26F0321 Under International Rules — Sonar Scans and Black-Box Recovery Now Hold the Key to the Truth

Published: October 7, 2026  |  Category: Industry

Three days ago, this site reported on the Latitude Air Ambulance Gulfstream G100 that went missing over the Atlantic on a flight from Bermuda to Boston, while the search for the six on board was still under way. The latest developments are heartbreaking: the search has transitioned to recovery, all six are presumed dead, and all have been identified. And a second, equally important news line has opened — Canada's Transportation Safety Board (TSB) is formally leading the accident investigation, case number A26F0321. Per Bernews reports of October 5 and October 6, 2026 and Global News of October 5, this medevac flight, call sign "Heartbeat 104," is moving from "search-and-rescue news" into "investigation news" — and for the air medical industry, the second phase matters no less than the first.

1. All Six Identified: A Mother, Her Son, and Four Canadian Crew

Per Bernews on October 5, Bermuda Police formally confirmed the identities of the two Bermudians aboard: Marilyn Lavonne Bean, 66, and her son Sergio Wayne Lottimore, 41 — the patient being repatriated and his family escort. The police also appointed a Family Liaison Officer to assist the relatives, and confirmed the aircraft went missing shortly after 1:00 a.m. on Saturday, October 3, just off Nantucket Island, Massachusetts. Per Global News on October 5, the U.S. Coast Guard identified all six aboard; the four Canadian crew employed by Ontario-based Latitude Air Ambulance were Philip Gregory Childerhose, Thomas Henry Farquhar, Sarah Jane Paton and Jolene Beth Weir. On October 6, the Government of Bermuda issued a tribute that spelled out the crew's roles for the first time: Captain Philip Childerhose, First Officer Thomas Farquhar, flight nurse Sarah Paton and respiratory therapist Jolene Weir — "These dedicated professionals came to Bermuda to provide an important service that has supported individuals and families during some of life's most difficult moments." That four-person configuration is itself the industry-standard international medevac crew: two pilots, a flight nurse and a respiratory therapist — meaning the aircraft carried airway management and respiratory support capability, most likely a "flight home" for a critically ill patient who needed ventilatory support. Peter Byl, President of Latitude Air Ambulance, said in the company's statement: "This is an unimaginable loss for our Latitude family and for everyone who loved the six people aboard Heartbeat 104."

2. Why Is Canada Leading? Multinational Accident Investigation Under the ICAO Framework

The accident happened in international waters off the U.S. coast; the aircraft was Canadian-registered; it departed British Overseas Territory Bermuda; the passengers were Bermudian; the crew Canadian — so who investigates? Per the official TSB statement reported by Bernews on October 5, the answer is explicit: "Pursuant to international agreements, the investigation shall be conducted by the State of registry, which is Canada." The TSB confirmed it will lead investigation A26F0321 into "an accident involving a Latitude Air Ambulance Gulfstream G100 aircraft, which occurred on 3 October 2026 in international waters off the coast of Nantucket, Massachusetts." In the Board's words: "The aircraft departed Bermuda with six occupants and was approaching the Boston area when the crew reported electrical difficulties. The aircraft subsequently descended rapidly and contact with air traffic control was lost south of Nantucket." The U.S. NTSB will assist as accredited representatives, and the TSB "in the coming days will deploy investigators to assist in the search and recovery of the aircraft." This is the basic framework of ICAO Annex 13 (Aircraft Accident and Incident Investigation): the State of Registry leads, while the State of Occurrence, the State of the Operator and the State of Design/Manufacture participate through accredited representatives. For the cross-border medical transport industry, the practical meaning of these rules is stark: once an international medevac flight is lost, the lead investigative authority, custody of evidence and the pace of public reporting all rest with the State of Registry's investigation body. Every operator a coordinator selects — and the country where its aircraft are registered — determines which channel a future accident investigation will run through. This is why professional transport coordinators include "the maturity of the operator's regulatory and investigation system" in supplier vetting.

3. The Technical Focus: An Electrical Emergency, a "Coming In Blind" Approach, and Black Boxes Under 24-27 Metres of Water

The TSB statement was the first official confirmation of the accident chain: crew reported electrical difficulties → rapid descent → loss of contact south of Nantucket. Global News's October 5 report added detail: per LiveATC audio, the pilot reported an electrical emergency and said the jet was "coming in blind" — approaching without instruments. Mary Schiavo, former U.S. Department of Transportation inspector general and aviation attorney, noted that secondary radar showed the plane turned several times — "That may indicate either that the pilots could not properly turn or control the plane or that there was some disorientation" — and that the reported wide debris field suggests the aircraft hit the water at high speed, "literally like hitting concrete," while flying into a large storm. On the search numbers: the Coast Guard said Sunday that it and other agencies searched more than 7,000 kilometres; the debris field lies about 32 kilometres off Nantucket in water approximately 24 to 27 metres deep — shallow enough to make recovery of wreckage and recorders realistically achievable. Rear Admiral Matthew Lake, Coast Guard Northeast district commander, said the Coast Guard is working with Massachusetts authorities to get sonar-equipped craft to search the sea floor around the debris field; as of the Global News report, the black boxes (cockpit voice recorder and flight data recorder) had not been recovered. The exact nature of the electrical failure, the crew's handling of the final phase, and why the aircraft descended rapidly after reporting the problem — the answers await the CVR/FDR and wreckage examination. Until then, any assertion about cause would be irresponsible; Latitude itself said in its statement that it "will not speculate about what occurred."

4. Four Reference Points for Cross-Border Medical Transport

1) Make the "State of Registry investigation channel" part of operator vetting. Cross-border medevac often requires chartering foreign-registered aircraft. When selecting an operator, understand the accident-investigation system of its State of Registry (whether it is a mature ICAO Annex 13 contracting state), because if an accident occurs, investigative leadership rests with that state — shaping how, how fast and in what language Chinese institutions and families can obtain information. Preferring operators under mature oversight with transparent safety records is, in essence, pre-positioning an institutional channel for the worst case. 2) Crew composition must map to the patient's condition. The four-person crew here (two pilots, a flight nurse, a respiratory therapist) shows that mature international operators staff to medical need, not merely "a nurse on board." Coordinators should translate the patient's airway/respiratory/circulatory support requirements into explicit onboard medical qualifications, written into the mission contract. 3) Pre-plan emergency location and recovery for overwater legs. In this case a debris field in only 24-27 metres of water already required sonar vessels and multi-agency coordination; in deeper water, black-box recovery would be measured in months. Route planning for cross-border transport should assess the overwater share of each leg, require underwater locator beacons (ULBs) on the operating type, and confirm they are within service life. 4) Build an accident-aftermath communication SOP. From Bermuda Police's family liaison officer to Latitude's restrained statements, this event displayed a mature aftermath-communication chain. Medical transport institutions should define in advance: who speaks publicly, how often updates are issued, who handles family liaison and psychological support, and how information is synchronized with overseas regulators and operators — because when tragedy strikes, these procedures are the institution's entire credibility.

Disclaimer: All facts in this article come from published reporting by Bernews (October 5, 2026: "Canada To Lead Air Ambulance Investigation," "Police Identify Bermudians On Air Ambulance," "Latitude Air Ambulance Release Statement"; October 6, 2026: "Govt Pays Tribute To Air Ambulance Crew"), Global News (October 5, 2026: "U.S. Coast Guard identifies all six aboard missing Canadian air ambulance," by Sean Previl) and Bernews's live updates page, accessed and verified on October 7, 2026. The investigation number (A26F0321), lead authority (Transportation Safety Board of Canada, with the U.S. NTSB assisting as accredited representatives), accident location (international waters off Nantucket), the TSB's account of events (crew reported electrical difficulties, rapid descent, loss of contact south of Nantucket), the names and roles of the six deceased, search scale (more than 7,000 km), debris field location and depth (about 32 km off Nantucket, 24-27 m), and black-box recovery status are as stated in those reports. The cause of the accident is subject to the findings of the TSB and the NTSB; this article makes no inference or determination as to cause, and Mary Schiavo's analysis is reported as her personal expert opinion. Statements about institutional practice in China are general recommendations; individual cases are governed by current laws, regulations and competent authorities. This site reported the missing-aircraft phase of this event on October 5, 2026; this article covers subsequent developments. This is an industry news share and does not constitute medical, legal or investment advice; in an emergency, call your local emergency number immediately.