Boeing 777

What is HYDIM on Boeing 777? (Hydraulic Interface Module)

What is LNAV on Boeing 777? (Lateral Navigation)

What is JPR on Boeing 777? (Jumper)

What is FMU on Boeing 777? (Fuel Metering Unit)

What is WBA on Boeing 777? (Wire Bundle Assembly)

What is VLV on Boeing 777? (Valve)

What is WEU on Boeing 777? (Warning Electronics Unit)

What is DIU on Boeing 777? (Digital Interface Unit)

What is M on Boeing 777? (Mach)