Rolls-Royce Trent 500

Certification was applied for on 9 February 1998. The Trent 500 first ran in May 1999. By July 1999, Rolls-Royce had secured $5 billion worth of Trent 500 orders. Flight testing began in late June 2000 on a modified A340 testbed. By July 2000, the test program had amassed 1,750h and 2,00 cycles, and aimed for 15,000h and 4,000-5,000 cycles before introduction. It achieved certification on 15 December 2000.