On 11 November 2018, an Embraer 190-100LR which had just taken off on a non-revenue positioning flight after a C' Check became extremely difficult to control in day IMC despite the complete absence of any flight control warnings. Eventually, after reverting to Direct Law, the crew were able to obtain some control and after exiting IMC were guided to Beja where, on the third attempt after almost two hours airborne, a landing was successful. The Investigation is not yet complete but has concluded the cause was gross maintenance error involving release from check with the aileron system incorrectly configured.