ENT SYSTEM (EFIS). THE PILOT AND COPILOT'S EFIS SYMBOL GENERATOR'S HAVE HONEYWELL SERVICE BULLETIN A21-2000-028 AND THE MULTI-FUNCTION GENERATOR HAS HONEYWELL SERVICE BULLETIN A21-2000-029 TO INCORPORATE NON-PRECISION GPS SCALING VIA GAMA ARINC 429 LRN INTERFACE WHICH MEETS REQUIREMENTS OF TSO C129A AND AC 20-130A. THE FMS SYSTEMS AR