Installation of Grimes Manufacturing Company three light strobe kit P/N 34-0107-1.
Installation of S-TEC System 55 two axis automatic flight guidance system, Model ST-559, with optional automatic electric trim system.
Installation of a Century yaw damper system, kit no. YK999 consisting of a Century yaw damper.
Century automatic flight system kit No. YK918/FD consisting of Century 41 autopilot flight director.
Installation of S-TEC system 60 two axis automatic flight guidance system, model ST-398.
Installation of S-TEC yaw damper system, model ST-401.
Installation of S-TEC System 65 two axis automatic flight guidance system, model ST-397.
Installation of King KAS 297 Altitude Selector Option
Installation of King KFC 250 flight control system (3 axis) using 3-inch or 4-inch indicators.