On November 23, 2017, an incident occurred in Latvia involving a Boeing 737, registration LNN-II. The Transport Accident and Incident Investigation Bureau of Latvia notified the NTSB of the event.
As the State of Manufacture and Design for the aircraft, the NTSB appointed a U.S. Accredited Representative to assist the Latvian authorities with the investigation under the provisions of ICAO Annex 13.