A CONTROL DISPLAY UNIT (CDU) THAT PROVIDES AN INTERFACE TO THE FLIGHT MANAGEMENT COMPUTER SYSTEM (FMCS) WHICH HOLDS THE NAVIGATION DATABASE. THE FILGHT CREW USE THE CDU TO ENTER ROUTE AND PERFORMANCE DATA FOR THE FLIGHT. IT HAS THE ADDITIONAL CAPABILITY TO FUNCTION AS AN INDEPENDENT SOURCE OF NAVIGATION. IN THIS MODE THE CDU PROVIDES LATERAL NAVIGATION FROM THE FMC. THIS ALLOWS THE CREW TO MODIFY THE FLIGHT PLAN IN FLIGHT WHEN REQUIRED. THE INFORMATION IS SHOWN AS A DIGITAL DISPLAY.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 9014 - DIRECTION FINDING COMPASSES; OTHER NAVIGATIONAL INSTRUMENTS AND APPLIANCES GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 9014 20 INSTRUMENTS AND APPLIANCES FOR AERONAUTICAL OR SPACE NAVIGATION (OTHER THAN COMPASSES) TARIC 90142080 00 - OTHER INSTRUMENTS AND APPLIANCES. ALSO CLASSIFIED IN ACCORDANCE WITH:- HARMONIZED SYSTEM EXPLANATORY NOTES (HSEN) (C) TO HEADING 9014