A case study on the post-fire performance of the facesheet extracted from the sandwich structure of a helicopter rotor blade is presented. The facesheet of the composite sandwich was exposed to heating through oxyacetylene flame only on its top face replicating a real-life fire scenario. Load bearing ability under tension and bending were affected such that the post-fire specimens possessed inferior residual tensile strength. The flame exposure created rougher surface morphology and increased oxygen elemental concentration from the EDX spectra. As the flame exposure temperature was increased, a significant increase in glass transition temperature and shifting of loss modulus as well as tan delta peaks were observed as per the dynamic mechanical analysis (DMA). The flame exposed specimens were also marked by the major decline storage modulus indicating the severity of fire exposure.