The demands of the growing metropolitan area of Santiago and the need for modern, jet-era airport facilities, which could safely accommodate both domestic and intercontinental flights, drove the need to relocate the Chilean capital's principal airport from Los Cerrillos Airport (ICAO: SCTI; IATA: ULC) in the denser southwest metropolitan region of Santiago to the more rural northwest metropolitan area. Construction of the original terminal building, the eastern runway (17L/35R), control tower, east apron and cargo facilities commenced in 1961. On February 2, 1967, the airport was commissioned Aeropuerto Internacional de Pudahuel, due to its location in the municipality of Pudahuel. On March 19, 1980, the airport was rechristened Arturo Merino Benítez International Airport in honour of the founder of the Chilean Air Force and Chilean carrier LATAM Chile (Formerly Linea Aerea Nacional, LAN Chile). The facility was expanded in 1994 with a new international terminal that covered 90,000 square meters, inspired by the architecture of Marseille Provence Airport in France. The building is located between the two parallel runways. This expansion added a new control tower, jetways, a duty-free zone, hotel, and greater parking area. The old terminal was used for domestic flights until 2001, when all passenger operations were merged into the same building. In 2000, Lan Chile joined Oneworld, making of Arturo Merino Benitez Airport a main hub for the alliance, its first one in Latin America and its second in the Southern Hemisphere (after Qantas' Sydney Kingsford Smith International Airport in Australia). As of April 2014, 71% of international and 75% of domestic passengers were carried by Oneworld member airlines. During the 2010 Chile earthquake, the passenger terminal building suffered internal damages and the collapse of a pedestrian bridge between the vehicle ramp and the departures area. Nevertheless, both runways and control tower were unharmed, allowing the realization of a massive humanitarian air-bridge held by the Chilean Air Force to Concepción, Chile (Carriel Sur International Airport), close to the most damaged area by this earthquake and subsequent tsunami. The airport authority had closed off all commercial flight operations after around 1200 UTC on February 27, resuming full operations on March 3, 2010. In 2011, IATA recognized the DGAC (Chile's provider of air navigation services) and SCL (Santiago Airport) with the Exceptional Recognition Award to the cooperative efforts of SCL and DGAC Chile that facilitated a quick recovery from the devastation that followed the Chilean earthquake on 27 February 2010. "Both airport and air navigation services were restored quickly with no impact on rates or charges for passengers or airlines. DGAC Chile and SCL are widely regarded as leaders in Latin America for efficiency, quality, and customer focus. In June 2011, Santiago International Airport received the Air Cargo Excellence Award, as the best Latin American Cargo Airport. Construction on Runway 17R/35L began in 2004 and opened to traffic in September 2005. However, within months, defects were discovered and the runway required repairing, completed in January 2006. Further study of the problem discovered that the initial repairs were insufficient, needing additional work. Finally, 17R/35L reopened for traffic in March 2007. In 2008, the airport terminal reached its maximum design capacity of 9.5 million annual passengers, two years earlier than forecast, and with the repairs needed after the 2010 Chile earthquake, the Ministry of Public Works announced in 2012 that it would call for proposals for the expansion and administration of the airport, two years prior to the end of the contract with the current operator. The ministry decided to investigate a new airport master plan instead of an expansion of the single passenger terminal building, as initially proposed by the current operator.