The Boeing Company

Michael D Malason

Yi Lu

Chandrakant Patel

Jesse K Senyo

Methods and apparatus for generating usage severity indices are disclosed herein. An example apparatus includes interface circuitry, machine readable instructions, and programmable circuitry to at least one of instantiate or execute the machine readable instructions to determine a first usage severity index for a drive system of an aircraft based on engine torque data, determine a second usage severity index for a rotor system of the aircraft based on cruise guide indicator data, determine a third usage severity index for a pylon structure of the aircraft based on flight regime data, and generate a flight-based usage severity index for the aircraft using the first usage severity index, the second usage severity index, and the third usage severity index.

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Mickleton, NJ, United States of America

Michael D Malason