Aircraft Engine and Engine Parts Manufacturing

336412 Aircraft Engine and Engine Parts Manufacturing
This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) manufacturing 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);
(4) aircraft propulsion systems overhaul and rebuilding (i.e., periodic restoration of aircraft propulsion system to original design specifications).