NHTSA has posted an announcement of a planned recall on some 2019 Airstream travel trailers. The recall number is 20V773. The details are at https://www.nhtsa.gov/recalls?nhtsaId=20V773
The affected models are 2019 Flying Cloud, International, and Classic models with Dometic three-burner stoves (3135 trailers). The problem is a potential gas leak related to over-tightening of a bolt on a "saddle valve"
Airstream is doing the recall because Dometic has issued a recall. Airstream's provided documentation says "Dometic has NOT yet identified a proposed remedy"
Airstream's actual recall process is expected to begin in February 2021.