Boeing 777

What is NGT on Boeing 777? (Night)

What is SDI on Boeing 777? (Source Destination Identifier)

What is G/A on Boeing 777? (Go Around)

What is OPAS on Boeing 777? (Overhead Panel System)

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

What is BIT on Boeing 777? (Built-In-Test)

What is TCC on Boeing 777? (Turbine Case Cooling)

What is CCA on Boeing 777? (Central Control Actuator)

What is CTC on Boeing 777? (Cabin Temperature Controller)