The ban on the Boeing 737 Max aircraft became worldwide on Wednesday after US President Donald Trump joined Canada and other countries in grounding the aircraft amid mounting global fears for the jets’ airworthiness.US authorities said new evidence showed similarities between Sunday’s deadly crash of an Ethiopian Airlines Boeing 737 Max 8 and a fatal accident in Indonesia in October.The Federal Aviation Administration said findings from the crash site near Addis Ababa and “newly refined satellite data” warranted “further investigation of the possibility of a shared cause for the two incidents.” An FAA emergency order grounded 737 Max 8 and Max 9 aircraft until further notice.Trump told reporters at the White House the “safety of the American people and all peoples is our paramount concern.”Mexico late Wednesday suspended Max 8 and 9 operations, after Canada and Chile also joined the long list of countries to ban the plane from flying in their airspaces. Many airlines have voluntarily taken it out of service. Brazil, Costa Rica and Panama followed suit. The airlines and countries that have grounded the Boeing 737 Max aircraft so far:Ethiopia said it would send the black boxes from Flight ET 302 to France for analysis, which could provide crucial information about what happened.“Hopefully they will come up with an answer but until they do the planes are grounded,” Trump said.FAA acting chief Daniel Elwell said the agency has been “working tirelessly” to find the cause of the accident but faced delays because the black box flight data recorders had been damaged. The new information shows “the track of that airplane was close enough to the track of the Lion Air flight … to warrant the grounding of the airplanes so we could get more information from the black boxes and determine if there’s a link between the two, and if there is, find a fix to that link,” Elwell said on CNBC.Boeing chief Dennis Muilenburg said he supported the US decision “out of an abundance of caution” but continued to have “full confidence” in the safety of the plane. The company continues its efforts “to understand the cause of the accidents in partnership with the investigators, deploy safety enhancements and help ensure this does not happen again,” Muilenburg said in a statement.The accounts of the recent crashes were echoed in concerns registered by US pilots on how the Max 8 behaves.At least four American pilots made reports following the Lion Air crash, all complaining the aircraft suddenly pitched downward shortly after takeoff, according to documents reviewed by AFP on the Aviation Safety Reporting System, a voluntary incident database maintained by NASA. In two anonymous reports on flights just after the Lion Air crash, pilots disconnected the autopilot and corrected the plane’s trajectory.One said the flight crew reviewed the incident “at length… but can’t think of any reason the aircraft would pitch nose-down so aggressively.”It was unclear if US transportation authorities review the database or investigate the incidents. However, the FAA said this week it had mandated that Boeing update its flight software and training on the aircraft.Published in Daily Times, March 15th 2019.