EU-US regulatory split may prolong 737-Max grounding

Aviation executives are increasingly worried that a widening split between the US and Europe will extend the grounding of Boeing’s 737-Max jet, sowing confusion and fear as regulators work to approve the resumption of commercial flights after two deadly crashes.

Sounding the alarm this week over the increasingly tenuous alliance were Aengus Kelly, who heads the largest global jet lessor, and United Airlines boss Oscar Munoz.