Quick access recorder

A quick access recorder is a airborne date recorder, that depending on the set up of the data management unit that feeds the data to the qar, records many channels of data, much more than the flight data recorder. The qar is not crash protected, but will survive most less severe incidents such as the recent crash landing of a British Airway Boeing 777 at London Heathrow.The qar in the British Airways incident was set up to record fuel flow, temperature and fuel tank levels, the qar has also been set to record toilet usage, the airline can then load the aircraft with less water, and therefore saving weight and fuel, meaning a cost saving to the airline.