This airframe has been banned to make a point about Delta scheduling their older frames on JFK-ACC. Delta probably does it because it's a low-yielding route, and making a big public stink (with safety overtones designed to scare uninformed readers) is one of the few ways Ghana can try to convince Delta to ignore the economics. Making a stink like this worked with BA, so maybe it will work with Delta too.
> Europe has banned airlines, especially African airlines, and individual aircraft pretty regularly for safety concerns [1]. America tends to ban entire countries. It is only fair for African countries to follow the similar guidelines, especially when there are problem aircraft.
To be clear, this has nothing to do with safety. If EASA or FAA banned an airline or a country because of a fuel imbalance there would be no airlines left.