Engine Structural Integrity Program (ENSIP) - A Viewpoint Based on Experience

A viewpoint on the general application of the Engine Structural Integrity Program, as specified in USAF Mil Std 1783, to aircraft engine design and structural maintenance is presented. This view is discussed in terms of General Electric's overall experience in commercial and military engi ne programs, with specific examples taken from the Durability and Damage Tolerance Assessment (DADTA) Program conducted on the TF34-100 engine under U.S. Air Force Contract. The TF34 program encompassed the analytical assessment of durability and fracture critical component lives and the development and implementation of an in-service Structural Maintenance Program.