Alaska Airlines ALK, -1.74% has begun flying Boeing 737 Max 9 jetliners again for the first time since they were grounded after a panel blew out of the side of one of the airline’s planes.The airline said in a statement that it has completed its final inspection of their group of the aircraft. They said they resumed flying the Max 9 with a flight from Seattle to San Diego on Friday afternoon.On Wednesday, the Federal Aviation Administration approved the inspection and maintenance process to return the plane ...