SED grid-scan modeling results for the flaring episode around MJD 54 973 in the scope of a two-zone SSC scenario. The total emission (solid lines) is assumed to stem from a first quiescent region (black dot-dashed lines) responsible for the average state (Abdo et al. 2011a) plus a second emission region (dashed lines). The model with the highest probability of agreement with the data is highlighted in red. Model curves underlaid in gray show the bands spanned by models with a fit probability better than 0.1 × P_best, 0.01 × P_best, and 0.001 × P_best, respectively. Data points have been corrected for EBL absorption according to the model by Franceschini et al. (2008).