MTU Aero Engines, a major supplier of the Pratt & Whitney PW1100G engine program, said that it aims to reduce the engine shop visit turnaround time (TAT) of the engine, also known as the Geared Turbofan (GTF), to less than 100 days. The GTF is one of the two engine options for the A320neo family, with the other being the CFM International LEAP-1A.