Installation of Garrett GTCP30-92 or GTCP30-92C auxiliary power unit.

Installation of a Garrett/ AiResearch GTCP36-100 APU in the tail compartment.

Installation of APU Access Panels.

Installation of AlliedSignal Aerospace TFE731-3D-1H or TFE731-3DR-1H Turbofan Engine(s).

Installation of supplemental thrust reverser annunciator lights and an APU ON annunciator.

Installation of Honeywell N1 digital electronic engine control (DEEC).

Installation of AlliedSignal Aerospace N1 digital electronic engine control (DEEC).

Installation of a refuel power switch.

Installation of a corrosion shield for an aft refuel panel.

Installation of an auxiliary power unit Garrett Model GTCP 36-150W for ground and flight use.