Originally Posted by slats11
I can accept increased TAT due to rising air from Cb, and this explains the ozone. However Clandestino states TAT did not rise during this period, and further that the FDR did not record a change in vertical acceleration.
Blockage of TAT probes tend to occur suddenly, similar to pitots. In this case the TAT rose gradually between 2:09:52 and 2:10:04, while the airplane was entering a vertical gust that reached 22 kt at 2:10:03.5 - see figure 64 of the Final Report, the correct one, not the figure 64 erroneously included in the English version.