Will the FDR record info from both PFD's and the standby info or only the captains/flying pilot?
During normal conditions the DFDR is provided with attitude information from IRU 1 via the DCU 1. (from the interim report). IRU 1 also feeds PFD 1.
I wonder which IRU feeds the standby attitude indicator? Or is it a separate gyro?
I also wonder about similar accidents where in spite of warning chimes and flags on the PFD, the pilot has just chased the invalid attitude indicator? Something for human factors people and instrument designers to rethink?