Arinc Direct-Datalink Mx. Notes: This code has been cancelled. EFF: 5001 and Sub. cancelled ref ASC 53A 23 CAN CAN 0.0 0 24 Feb 2014 C ASC ASC 53A Communications 970531 Airframe Management Function ARINC Direct - Datalink Service Provider 5001 and sub. AIC which have previously cAv ASC 53 should signet