Tom Krisher and David Koenig, Ap Business Writers Updated 4:12 pm CDT, Tuesday, May 14, 2019 Stephen Dickson flew five different jetliners during a 27-year career at Delta Air Lines that was capped by running the company’s daily operations. Proponents say he’s got the right experience to be the next head of the U.S. Federal Aviation Administration. But his nomination by President Donald Trump comes as the FAA is under scrutiny for comfy relations with aircraft maker Boeing Co. following two deadly crashes of the 737 Max aircraft. Dickson is to appear before the Senate Commerce Committee Wednesday as his confirmation process begins. He has support of an industry trade group and former colleagues. But he’ll face tough questions about an agency under fire for its oversight of Boeing.