Boeing

What is C on Boeing 737? (Captain)

What is HPA on Boeing 737? (Hectopascals)

What is FDH on Boeing 777? (Flight Deck Handset)

What is DEU on Boeing 737? (Display Electronic Unit)

What is IOEU on Boeing 737? (Inboard Overhead Electronics Unit)

What is DEL on Boeing 777? (Diagram Equipment List)

What is CSMU on Boeing 777? (Cabin System Management Unit)

What is GSPR on Boeing 737? (Gasper)

What is GPS on Boeing 737? (Global Positioning System)