Indeed, that should come as no surprise to anyone. The two most common reasons the court will vacate a default judgment are for 1) excusable default, and 2) lack of personal jurisdiction (bad service).The award shall be vacated on the application of a party who either participated in the arbitration or was served with a demand for arbitration. The Eleventh Circuit has issued a significant en banc opinion regarding the available grounds for vacatur of an arbitral award. 2006), abrogated on other grounds. 28. The Federal Arbitration Act "imposes a heavy presumption in favor of confirming arbitration awards.