1. AIRCRAFT MAINTENANCE

Flight Line Maintenance
Progressive Second Line Maintenance
Periodic Maintenance
Structural Repair
Depot Level Maintenance
Major Inspection
Drop In Maintenance
Crash Damage Recovery
Aircraft Strip and Paint 

2. AIRCRAFT MODIFICATION AND UPGRADES

Avionics Upgrade / Modernization
Structural Modification
Service Life Extension Program
Aging Aircraft Program
System Integration
Interior Refurbishment and Conversion
Airborne Fire Fighting System
Fuselage Stretch
Air to Air Refueling