Hi Chris,
About the time base: On page 10, RH column, halfway down the page:
- les manettes de poussée des moteurs ...
A 12 h 45 mn 34 s la vitesse est de 122 kt et l'incidence 13 (deg). You are correct (I was wrong) that entry into alpha-prot mode occurred at t-4, one second later (paragraph 1.16.1.2 refers).
Re your comment on my P.S.: The DFDR recorded 200 parameters, including 141 discretes (yes/no) - para.1.11.4. We don't know if the sequence on the print is the same as the recording sequence, but the first word in the recorded frame normally contains the date/time of that frame. I read the second column headed TGEN (s) e.g. 296.0 as a frame counter starting from some arbitrary datum.