Boeing 737 Max return outside US seen slowed by regulators

European and Canadian regulators are still wrangling with Boeing over the last remaining technical details of its 737 Max revamp, leaving some customers to worry that certification in critical markets outside the US could slip to next year. In a rare bit of good news for Boeing and its beleaguered jet line, the FAA on Aug. 3 triggered a process that could lead to reissuance of a US airworthiness certificate for the Max as soon as October. Yet international regulators say they aren’t ready to follow suit. The EASA is still waiting for more clarity from Boeing on a key update to be carried out after the plane is back in the air, according to people familiar with the matter. And Transport Canada, it its most detailed comments to date, said Monday that its concerns haven’t been fully addressed about how to quiet erroneous activation of the Max’s “stick shaker,” which can distract pilots and add to their workload in an emergency. China, the world’s second-biggest aviation market, has meanwhile said very little about its plan to evaluate the Max. Winning US approval by October might make it possible for commercial flights to occur before year-end. <br/>