Landed my Cirrus a month ago for a wedding. Signature was amazing. I stayed roughly a week. A month later got an invoice from a 3rd party vendor billing me (via ADS-B) showing KMOB as the airport. No clarification was provided on the invoice or what the charges were for???? I thought it was SPAM…

Effective May 1, 2025, the Mobile Airport Authority (not Signature) is collecting landing fees from transient aircraft based on the weight of the aircraft: https://www.mobileairportauthority.com/uploads/landing-fees-document.pdf This works out to be roughly $15 for a Bonanza sized aircraft at KMOB.

C182. Landed 7/24/2025 unexpected stop due to weather. Line staff marshaled me in and immediately began fueling. Front desk was friendly. Good coffee machine and many snacks available. Desk waived the handling and $36 infrastructure fee since we had stopped for WX. Clean bathrooms and comfy chairs-would gladly return.