The Hill has it –
The Senate voted in favor of an amendment to the Federal Aviation Administration authorization bill that would eliminate the tax language. The amendment was offered by Sen. Debbie Stabenow (D-Mich.), and was similar to a Republican proposal from Sen. Mike Johanns (R-Neb.) that has 61 Senate co-sponsors.
The Senate also voted down a full repeal, by a not surprising party line vote.