Afraid I am only a GA pilot so forgive the questions.
I would have assumed that when a heavy aircraft is in landing configuration at a 'final' stage then there would have been a 'gear not down' warning.
I understand that there seems to have been no communication of a problem to ATC, which seems to indicate that everything happened very quickly and very late indicating that the crew were unaware of the emerging situation. However, if you have a 'power out' on a heavy aircraft will this kill the comms?