Rob21:
I don't remember the date AI changed the procedure on handling TLs with a locked reverse. Once you left the affected engine TL at idle. Now, you bring both to reverse. What was always, it is not any more. OK, now is just as none of the engines had a reverse inop. But we have one. This is not the same landing. This is not like 30 million landings.
Fair enough, although the point I was making was that AI's standard procedures *always* called for *both* levers to be reduced to idle
before selecting either one or both to reverse. Maybe that distinction could have been made clearer in training (as in emphasising *both* to idle), but I don't know.