WATCH: US travelers admit to hesitations & concerns about flying on 737

Boeing 737 airplanes are pictured on the tarmac at the Boeing Renton Factory in Renton, Washington on March 12, 2019. The US said there is "no basis" to ground Boeing 737 MAX airplanes, after a second deadly crash involving the model in less than five months prompted governments worldwide to ban the aircraft. "Thus far, our review shows no systemic performance issues and provides no basis to order grounding the aircraft," Federal Aviation Administration (FAA) chief Daniel Elwell said in a statement.