The union message underscores the heightened scrutiny on airline safety following a January incident in which a panel blew off the side of an Alaska Airlines plane mid-flight.
Several geopolitical factors have slowed the post-pandemic recovery process so far in 2024, but there have been "positive signs" over the last year, too.
The report found that just 79% of nearly 3,000 companies that provided data were simply not aware of the risks linked to their plastic-related activities.