Maybe I missed it but has anyone addressed what "demystification" the FDR/CVR's will surely provide in time?
If the crew was not aware of the incident until hours later and didn't pull the CVR breaker there probably wasn't anything significant on the CVR, most of them seem to record only the last 120 minutes these days. At least that is what we are told.
The FDR certainly might have data of interest if it was pulled after the flight. Things like power settings, rotation rate and MCP stuff. Does it perhaps capture FMS data in some installations?
A few comments from the ATC side :
Listening to the VHF recordings everything sounds normal there: It looks like ATC did not " suggest" an intersection dep and pilot knew where he was as he repeated T1, and took the line up and wait at T1, and later the take off clearance from there.
I would guess that whatever discussion took place about using T1 was probably on the ground control frequency which wasn't archived on
Listen to Live ATC (Air Traffic Control) Communications | LiveATC.net.