The engine modifications to the Trent 900 engines were already in production before the QF32 incident which indicates that Rolls-Royce may have been aware of potential issues with the original design. The engines on VH-OQE, VH-OQF and the new build aircraft appear to have minor differences to the engines on the first four aircraft making them suitable for the component modifications. The QANTAS A380 engines are owned by a Hong Kong bank and maintained by Rolls-Royce with QANTAS paying on a “power by the hour” basis. It is unclear whether QANTAS were aware of the differences to the engines on VH-OQE/F. The engines on VH-OQA/B/C/D may need to be replaced with new engines, possibly from the A380 production line, with the original engines returning to Rolls-Royce for rebuild.