Aviation News – Boeing has warned that first-quarter deliveries of its 737 MAX aircraft could face delays after technicians discovered wiring damage caused by a machining error during production. The U.S. aerospace manufacturer said the issue involves small scratches on electrical wiring in a group of 737 MAX jets, requiring rework before the aircraft can be delivered to airline customers. The announcement adds another complication for the company as new CEO Kelly Ortberg works to restore confidence in the manufacturer’s production quality and reliability.