I watched some videos on YouTube where the pilot used the thrust-reverser for push-back instead of the push-back tug. Some examples:
Is this procedure currently in use? Would an airline today certify a 737, or even turboprop, like a Beechcraft 1900D, be to execute such a maneuver?
I've also seen a Boeing 727 video. 727s and MD80s have the engines attached directly to the fuselage, not in the wings. Would that be one of the reasons?