Several times years ago on AA's B727's at both DFW and ORD. At ORD, we watched as an MD-80 beside us backed out under power then we did the same. Very noisy as the thrust reversers were used, but it saved time waiting for the tugs. As mentioned above, I always thought that aircraft with wing mounted low engines weren't allowed to do the reverse thrust backout due to sucking in debris because of the lower mounted engines, but I didn't realize that was given as one of the reasons for the tragic Air Florida crash in D.C. Thought it was a long delay after deicing at the time.

bj-21.