After Air China pulled its LAX 747 flights, only Air Korea and Lufthansa are flying their jumbos to Los Angeles.

Despite 481 orders from airlines around the world ... including the Boeing 747-400. While there is a lot of stake in the future 777X, Boeing is struggling to get it certified.

The Boeing 747 was once the mainstay of almost every airline's long-haul fleet. It was larger, more economical, and had a longer range than any aircraft in the world. But the 747-400 came out over 35 ...

Despite 481 orders from airlines around the world ... including the Boeing 747-400. While Boeing has a lot riding on the success of the 777X, the aerospace company's struggling to get it certified.