OCCAR News 21. February 2014 A400M Service Level Agreement signed with NSPA OCCAR-EA signed a 4-year A400M Service Level Agreement (SLA) with the NSPA (NATO Support Agency) on 21 February 2014, marking a further key milestone in the expanded cooperation with NSPA. 16. February 2011 16 February 2011: A400M Maturity Gate Milestone Achieved One of the most important industrial decisions on the A400M Programme was taken on 16 February 2011. The so called Maturity Gate Milestone was reviewed by an independent panel and as a result of this review the gate has now been passed. 01. February 2011 A400M begins cold weather trials in Sweden The second A400M development aircraft - Grizzly 2 - visited Kiruna in northern Sweden for four days of cold weather trials at the beginning of February.