The fact those A300 -600,s achieve the dispatch reliabilty they do is tribute to the monarch engineers, they do an amazing job keeping those things in the air
What a load of tosh!......There are plenty of airliners in the air of a similar vintage and I can assure you they don't get "special treatment"! (BA's early 747-400's and some of the TOM ex FCA 757/767's spring to mind)
Any airliner correctly maintained will keep flying. Sure, the C & D checks get progresivily heavier but if an operator decides to keep an aircraft in the air it doesn't require miracles!