On September 6, 2011, an Aerocon Swearingen SA-227 Metroliner, registration CP-2548 performing flight A4-238 from Santa Cruz to Trinidad (Bolivia) with 7 passengers and 2 crew, was on approach to Trinidad when radio contact was lost. The airplane was located three days later during search efforts. Six passengers and two crew were fatally injured, and one passenger received serious injuries. The airplane was substantially damaged. The Dirección General de Aeronáutica Civil(DGAC)of Bolivia is investigating the accident. The NTSB designated a U.S. Accredited Representative to assist the DGAC's investigation as the state of manufacture under the provisions of ICAO Annex 13. All inquiries should be directed to: Ministerio de Obras Públicas, Servicios y Vivienda Viceministerio de Transportes Dirección General de Aeronáutica Civil Palacio de Comunicaciones Av. Mcal. Santa Cruz No. 1278 4° Piso La Paz Bolivia Website: www.dgac.gov.bo