Airbus A330

What is HDG/S on Airbus A330? (Heading Selected)

What is OFF/R on Airbus A330? (Off Reset)

What is PT on Airbus A330? (Point)

What is LGPIU on Airbus A330? (Landing Gear Position Indicator Unit)

What is F-PLN on Airbus A330? (Flight Plan)

What is PROC T on Airbus A330? (Procedure Turn)

What is ECS on Airbus A330? (Environmental Control System)

What is OPU on Airbus A330? (Overspeed Protection Unit)

What is HSMU on Airbus A330? (Hydraulic System Monitoring Unit)