AA has asked for the FAA to look informally into the assignment of slots at LGB. They have not filed a formal complaint at this time. The full article is at:
A few quotes:
The FAA has agreed to review the ongoing dispute between American and the airport that revolves around a contract between JetBlue Airways and the city that awarded JetBlue 27 of the slots.
Long Beach officials and American have met with the FAA and will continue to have talks with the aviation agency but that the FAA is not involved in official mediation of the dispute.
Snyder stressed that the American complaint was not filed formally.
...an FAA spokesman also pointed out that the 27 positions in question had been dormant and unwanted by airlines for several years.