PARIS—A $600 million contractual and safety dispute between Airbus and Qatar Airways deepened on Tuesday when the European planemaker revoked orders for two A350-1000 jets, days after ripping up an order from the Gulf carrier for 50 A321neos. Qatar Airways has sued Airbus for more than $600 million and is refusing to take delivery of further A350s until its regulator receives a formal analysis of erosion to the painted surface and underlying lightning protection on 21 of the jets. Airbus, which has two completed A350s ready for delivery to Qatar Airways, has said it has provided the necessary information on the problem of surface degradation and that the damage does not amount to a safety issue. The planemaker said in a UK court filing last month that it was declaring Qatar Airways in default on two A350 jets that were completed and ready to be delivered. It also took the …