GE Aviation announces new TRUEngine LLP designation

GE Aviation is launching the TRUEngine LLP program, which offers the industry an easy means of evaluating the operating history of used life-limited parts (LLP). To earn the TRUEngine LLP designation, LLP are subjected to a rigorous back-to-birth records audit and engineering review to evaluate their configuration and maintenance history relative to  airworthiness limitations substantiated by GE and documented in the engine manual. LLP will be qualified at the part level and at a specific time-since-new and cycles-since-new. Life-limited parts are the most critical engine components and include rotating components such as disks, spools and shafts. Life limits are established using a rigorous methodology that is applied to both individual parts as well as the engine system. Systems-level analysis is critical because some non-life-limited “influencing parts” like turbine blades and seals can significantly impact durability of LLP. TRUEngine LLP will be rolled out in stages and ultimately will cover the CFM56*, CF34, CF6, GE90, and GEnx product lines. TRUEngine LLP documentation will accompany future LLP sold through GE Aviation’s materials business, the largest source of used serviceable material for GE Aviation engines.