The American Certificate Management Office (CMO) has certificate management oversight responsibilities for the following air carriers and associated air agencies:

Part 121 Air Carriers

• American Airlines Inc, Fort Worth, TX (AALA)

Part 145 Repair Stations

• American Airlines Inc, Tulsa, OK (AALR)
• American Airlines Inc, DFW, TX (A3AR)
• Texas Aero Engine Services LLC, Fort Worth, TX (XE5R)