@training wheels
engine flame-out can also be caused by high ice water content weather which is generally associated with convective weather, something which is believed to be present. High ice water content may not show up on properly on a weather radar and is more likely the reason than rain in the TS as rain can be detected by the wxr. water particles are five times more reflective than ice particles.
http://easa.europa.eu/system/files/d...ort_4-2011.pdf