April 17th 2017
By Mike Flaminio
According to an Apple memo at Mac Rumors, it appears those looking to get their iPad 4th Gen repaired could have it replaced with an iPad Air 2. As models get older, it's probably harder and less practical for Apple to stock parts and train staff.
Apple memo via MacRumors:
Starting March 30, iPad 4th generation whole unit repairs may be substituted to iPad Air 2 models. Apple's repair and order management tool will indicate for each repair if a substitution will take place. Please note the substitute part's color and capacity to ensure the customer understands what their replacement iPad whole unit will be.