Let $A(4,-2), B(1,1)$ and $C(9,-3)$ be the vertices of a triangle ABC . Then the maximum area of the parallelogram $A F D E$, formed with vertices $D, E$ and $F$ on the sides $B C, C A$ and $A B$ of the triangle $A B C$ respectively, is $\_\_\_\_$
$\_\_\_\_$
