With a request in U.S. bankruptcy court to block creditors from seizing assets, Duane Morris is aiming to keep Mexico’s largest airline aloft.

The firm is advising 89-year-old carrier Compania Mexicana de Aviacion SA, on its Chapter 15 filing in New York, and the airline’s attempt to block creditors from grabbing U.S. property that could disrupt operations and force a pre-emptive liquidation.