Defense And Aviation Maintenance, Repair And Overhaul Services Agreement AMETEK, Inc. has announced that it has entered into a definitive agreement to acquire First Aviation Services, a leading provider of highly engineered, mission-critical defense and aviation maintenance, repair and overhaul (MRO) services and a manufacturer of related proprietary components. First Aviation’s MRO capabilities include advanced electronics, rotor blades and assemblies, propellers, landing gear, and flight controls. In addition, First Aviation specializes in designing, engineering, and manufacturing critical parts across a wide range of defense and aviation platforms.