MD-83, LV-CIT (c/n 49568/1380), now re-registered N598SH, and MD-87, LV-BSC (c/n 49727/1621), now re-registered N599SH, both departed Buenos Aires Ezeiza (EZE) to the US via Lima (LIM) on 22Jan14.
Leal's aircraft were well-known for their cartoon-character ducks on different colored tails.
LV-CIT had a dark blue tail as seen in this photo:
And LV-BSC had a green tail:
A third aircraft, MD-83 LV-CSW (c/n 49845/1573) had a light purple tail: