United is considering options to replace orders for the Max 10. Since the Alaska Airlines accident, federal regulators have been investigating production quality issues at Boeing, and the FAA has barred Boeing from increasing production of 737 Max jets. United previously said that it expects to lose money in the first quarter because its Max 9s were grounded for inspections for three weeks after the blowout on the Alaska plane. The Chicago-based airline is scheduled to release financial results April 16. United CEO Scott Kirby is one of several airline executives who have called out problems at Boeing and sought a meeting with Boeing directors. Boeing announced last week that CEO David Calhoun will step down at the end of the year as part of a leadership shakeup at the company. The head of Boeing's commercial-airplanes unit has already been replaced, and the chairman of the board will not stand for reelection in May.