Installation of Collins FCS-80 flight control system with dual/ single flight director (FD) system.

Installation of Bendix M-4D automatic flight control system including optional flight director system and integration into existing Swearingen pitch trim system.

Collins AP-105 automatic flight control system.

Installation of Bendix M-4D automatic flight control system, including integration into the existing Swearingen pitch trim and yaw damping systems.

Installation of Collins ADS-80 air data system.

Installation of MK-VI GPWS system and radio altimeter system.

Installation of Allied Signal CAS-66 TCAS I System

Installation of recognition light assembly on the horizontal stabilizer.

Installation of recognition light on the horizontal stabilizer.

Bendix M-4C autopilot.