"I remain concerned that international aviation regulators are providing more certainty to the flying public by grounding the 737 MAX 8 than our own FAA – the world leader in aviation safety," DeFazio, a Democrat from Oregon, said. Meanwhile, the Association of Professional Flight Attendants, a union that represents flight attendants who work for American Airlines, directly urged the airline's CEO Doug Parker to ground the planes pending the results of the investigation and said flight attendants would not be forced to fly if they felt unsafe. "While we cannot draw premature conclusions, it is critical to work with manufacturers, regulators and airlines to take steps to address our important safety concerns," said APFA's National President Lori Bassani in a statement calling on Parker.