336412 Aircraft Engine and Engine Parts Manufacturing

This industry comprises establishments primarily engaged in one or more of the following manufacturing activities:

1. aircraft engines and engine parts;
2. developing and making prototypes of aircraft engines and engine parts;
3. aircraft propulsion system conversion (i.e., major modifications to systems); and
4. aircraft propulsion systems overhaul and rebuilding (i.e., periodic restoration of aircraft propulsion system to original design specifications).