Air travelers should be aware that the Federal Aviation Administration has temporarily grounded all Boeing 737 Max aircraft in the United States. Boeing has two main versions of the 737 Max — the Max 8 and Max 9.
According to the FAA, there are 387 Boeing 737 Max 8 and 737 Max 9 aircraft registered worldwide, and 74 registered in the U.S. Southwest Airlines has 34 of the 737 Max 8, American Airlines has 24 and United Airlines has 14 of the 737 Max 9.
— The Boeing Company (@Boeing) March 13, 2019
Folks getting ready to travel should check their flights for any changes.