The United Kingdom's Air Accidents Investigation Branch (AAIB) notified the NTSB of an incident involving a Boeing 777-236, registration G-YMMC, which took place on July 23, 2017, in London, UK.
Under the provisions of ICAO Annex 13, the NTSB has appointed a U.S. Accredited Representative to support the investigation conducted by the UK government, acting as the State of Manufacturer and Design for the aircraft.