Hi,
And with an 'overdue' aircraft, 'maintenance' is not exactly the first department you start consulting, especially in a major airline organisation....
Methink this behaviour in the major airlines will change .. cause what happend to the AF447.
Remind that actually the investigators have at today only the ACARS and some debris for speculate about what happened and those seem's suddenly of great importance (read the 2 preliminary reports)
ACARS are no more only maintenace matter now.
BTW I never read yet some words in the BEA reports about a possible "stall" of AF447 ... but I read it sooo many time in Pprune
Hope those knowledge will be updated by the black boxes datas