The Globe and Mail reports in its Monday edition that U.S. regulators on Sunday said that some Boeing-made jets would remain grounded until deemed safe to fly again, as authorities conduct a search near Portland, Ore., for a missing panel that blew off a new Boeing 737 Max 9 jet during a flight on Friday. A Reuters dispatch to The Globe says the U.S. Federal Aviation Administration on Saturday grounded 171 Boeing jets installed with the same panel after the emergency landing of the plane that had been in service for just eight weeks. "They will remain grounded until the FAA is satisfied that they are safe," the agency said in a statement on Sunday. The so-called "door plug" tore off the left side of an Alaska Airlines jet after takeoff from Portland en route to Ontario, Calif., forcing pilots to turn back and land safely with all 171 passengers and six crew on board, with only a few minor injuries reported. The panel, put in place on some planes in lieu of an additional emergency exit, is likely to have landed somewhere in the western suburbs of Portland, but has not yet been found. Authorities have asked the public for help finding the panel. Canadian airlines say they do not fly the grounded Max jetliners.