Installation of replacement fuel tank sealant system
Installation of structural provisions for infra-red scanning equipment.
Structural provision for NASA - Daedalus IR scanner.
Replace existing nickel-cadmium batteries with Teledyne Gill BB638/T series lead-acid battiers.
Replacement of plunger type landing gear squat switch with rotary type switch.
Installation of Mark II performance system, including recontoured wing leading edge, recontoured flap leading edge, wing vortex, generator removal, installation of wing stall strips and other minor refinements.