Founded in 1946, OTTO INSTRUMENT AND AVIONICS specializes in the Repair & Overhaul of INSTRUMENTS, AVIONICS and ELECTRICAL AC ... CESSORIES such as Gyros, Altimeters, Computers, Circuit Cards, Display Processors, Fire Detection Loops, Wire Harnesses, etc. All OTTO service centers are licensed and authorized Honeywell repair facilities. OTTO is also a Boeing Licensed and Approved PMA supplier of Engine & Nacelle Wire Harnesses. read more