SAO PAULO (Reuters) – Brazilian airline Azul SA has registered to participate in a bankruptcy auction for the assets of struggling carrier Avianca Brasil scheduled for next week, potentially walking back a previous decision not to participate.

FILE PHOTO: A customer walks past Avianca airline check-in machines at Congonhas airport in Sao Paulo, Brazil, April 12, 2019. REUTERS/Nacho Doce

The airline confirmed through a representative that they had registered, although he said no decision had been made whether to actually place a bid. The bankruptcy auction is set for Tuesday.

Avianca Brasil filed for bankruptcy in December and will auction some of its most coveted airport slots, which grant airlines the right to operate flights out of crowded airports.

Brazilian newspaper Valor Economico first reported Azul’s