lifting cranes and you would have teams of divers, and the divers, of course, even working at 100-foot depth, you'll have to have decompression chambers. >> reporter: a potentially slow process because divers can only remain at depth for short periods due to health concerns. but does indonesia have the know how to carry off a recovery effort like this? there are still questions about the location of the debris. david gallo. >> usually you're extremely careful not to say that you found something until you ground truth in it. >> reporter: woods hole participated in the crash of air france 447 off brazil's northeastern coast, whose black boxes took almost two years to recover, footnoting what a painstaking process this can be. >> and joe johns joins me now live from washington. joe, is there any sense how long once the plane is found that it