Originally Posted by
rweintra
Are there ever aircraft changes due to load factors?
Very rarely. CO just sells the 48 BF seats until they are sure they will have the 50 seater on the route, and can then open up a couple more J seats at the last minute if need be. There are rumors of 757 -> 767 upgrades on rare occasions, either for load or mechanical reasons, but those are very infrequent.