The New York Times says
Mr. Lee, 46, a 19-year veteran with Asiana, has logged more than 9,700 hours of flying, piloting A320s and Boeing 737s and 747s to various destinations, including San Francisco. He had just 43 hours of flying time with Boeing 777s, and had made eight landings with them, in London, Los Angeles and Narita, Japan. He was still on a "familiarization flight" program when he was at the controls Saturday; a senior colleague with more experience landing 777s, including at San Francisco, sat beside him as co-pilot.