Boeing

What is LOC on Boeing 737? (Localizer)

What is SRM on Boeing 777? (Stabilizer Trim/Rudder Ratio Module)

What is FCTL on Boeing 737? (Flight Control)

What is CHKPT on Boeing 777? (Checkpoint)

What is B/A on Boeing 737? (Bank Angle)

What is EEC on Boeing 777? (Electronic Engine Control (Unit))

What is MGSCU on Boeing 737? (Main Gear Steering Control Unit)

What is FSEU on Boeing 737? (Flap/Slat Electronics Unit)

What is ECS on Boeing 777? (Environmental Control System)