Boeing 777

What is CVR on Boeing 777? (Cockpit Voice Recorder)

What is LO on Boeing 777? (Lock Out)

What is PYL on Boeing 777? (Pylon)

What is GPWS on Boeing 777? (Ground Proximity Warning System)

What is TERM on Boeing 777? (Blk Terminal Block)

What is VNAV on Boeing 777? (Vertical Navigation)