If the take off configuration warning works properly
the crew will have taken action, ergo... although the AC were not correctly configured for TO is obvious, in my opinion, that the accident occurs because the CWAS failure, any other way the crew will abort TO.
Acc spanish media:
Video: La caja negra del JK 5022 demuestra que los pilotos chequearon el avión antes del despegue : Vídeos en ELPAÍS.com
Captain checked flaps / Slats : 'slats flaps ok'. Data obtained from CVR.
Investigation team are focusing on two different items:
1.- TR failure
2.- Flaps FAILURE
It seem GPWS and STALL warnings were audible, why not wrong TO config?