Originally Posted by
klintE
To be strict, FDAU doesn't record anything, it collects signals and transfer them to recorders or other devices.
But you're right, DFDR from 5 yo Boeing a/c, must be able to record CC inputs separately.
Screen below comes from report related to TK1951 (737NG) crash during landing at AMS
How did the Capt and FO separate the controls to such a degree without breaking out?