The Air 5376 Phase 2 Project is to upgrade the F/A-18 fleet to incorporate enhancements which will allow the aircraft to more effectively perform its air defence strategic concept tasks. This capability is being implemented in three distinct stages, the first enabling the aircraft to more effectively perform its air defence role, the second enhancing pilot situational awareness, and the final stage providing additional aircraft self protection.

In addition to the physical upgrade of the F/A-18 Fleet, each stage includes an upgrade to the aircraft software to enable the upgraded hardware and commensurate upgrades to ground support and training systems.