ST Aerospace announced new maintenance contracts with a total value of approximately S$320m ($256m) in the first quarter of 2011. Ranging from three months to 12 months, these contracts for the Aircraft Maintenance & Modification, Component Total Support and Engine Total Support businesses will be carried out at its facilities in the Americas, Asia Pacific and Europe. The Aircraft Maintenance & Modification (AMM) business scored new airframe contracts involving line maintenance, base maintenance, heavy maintenance, passenger-to-freighter (PTF) conversion and interior refurbishment on various commercial and military aircraft types, including Airbus A300, A320 and A330, Boeing 747, 757, 767, DC9, DC10, MD11, C130 Hercules, F16 Falcon, Fokker 50 and Super Puma. The Component Total Support (CTS) business secured new component contracts, including Maintenance-By-the-Hour (MBHTM), avionics and mechanical component maintenance, aerostructures and landing gear repair and overhaul. The Engine Total Support (ETS) business clinched new engine maintenance contracts, which include on-wing maintenance, off-wing maintenance, technical management and asset management on various engines types, including CFM56, Pratt & Whitney JT8D, F100, F110, Rolls-Royce Allison T56, General Electric J85, F404, Honeywell T53, T55, and Turbomeca Makila.