Older A 320 maintenance down time
Hello,
A question for maintenance professionals, re Airbus 320
Does anyone know the recommended average time for maintenance including non scheduled by Airbus ?
As older Airbus 320 need more down time for maintenance, I would like to know the ratio of amount of hours flown, to hours required for a decent maintenance standard on ground ?
If one´s company has a older Aribus fleet then how many aircraft should one have for backup ? on average,
Thanks in advance