TRUEngine

TRUEngine is a voluntary engine-level designation that confirms an engine has been maintained exclusively to GE Aerospace or CFM International-issued manuals and recommendations throughout its service history — with no Parts Manufacturer Approval (PMA) parts and no Designated Engineering Repairs (DERs) applied. The programme was launched in 2008 for the CFM56 family and has since expanded to cover GE90, GEnx, CF34, and LEAP engines; enrollment has surpassed 18,000 engine serial numbers globally. Qualification requires the operator or lessor to submit full maintenance records, which GE Aerospace or CFM then audits against engine configuration and overhaul documentation. The designation is granted per individual serial number, is fully transferable at no charge when the asset changes hands, and remains valid until the next shop visit — at which point requalification is required. An independently commissioned International Bureau of Aviation study of CF6-80C2 and CFM56-3/-5C fleets found that OEM-configured engines can carry residual values up to 50 per cent higher than equivalent engines maintained with PMA or DER content. A complementary TRUEngine LLP designation extends the concept to life-limited parts, requiring back-to-birth traceability documentation on critical rotating components such as discs, spools, and shafts. For asset managers, lessors, and airlines in the GCC operating high-cycle narrowbody or widebody fleets where secondary-market liquidity matters, TRUEngine provides an auditable paper trail that directly supports lease return negotiations and asset sales.