“The record is insufficient to determine any reasonable solution that would strike an appropriate balance of competing interests. There is strong opposition to the Commission’s proposals from many commenters in this proceeding, including our nation’s airline pilots and flight attendants.

“A number of commenters argue that the results of international studies and operations may not adequately reflect whether onboard mobile operations can be safely permitted in the United States.

“The record is insufficient to determine any reasonable solution that would strike an appropriate balance of competing interests.”