Approvals
- McCauley
- Hartzell
- Hartzell (Cold Compression Roll)
- Hartzell (Erosion Shield)
- MT-Propeller
- CAA (Civil Aviation Authority of the United Kingdom)
- FAA (Federal Aviation Administration)
- ISO 9001: 2008
- EASA (European Aviation Safety Agency)
- IAAC (Indonesian Aviation Airworthiness Certificate)
- IACC (Instituto de Aeronautica Civil de Cuba)
- CAAP (Civil Aviation Authority of the Philippines)
- CARC (Civil Aviation Regulatory Commission, Kingdom of Jordon)
- CAAV (Civil Aviation Administration of Vietnam)

