AA to Swissport prob
This will be a good one to watch. Because AA and Turkish Airlines are linked pax can use the frequent flyer cards for either airline on any AA and TK service, plus they both use Troya for check-in and res.
Swissport seem the most likely seeing they handle TK.
But S/air would take TK back so there is all to play for.
Avaince, Servisair or Swissport??????