The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  X  1  1  X  1  1  X  X  X  X  X  3  1
 0  3  0  0  3  0  3  3  6  0  0  3  3  0  6  3  6  6  0  3  6  0  3  6  6  6  6  0  0  0  3  3  0  3  3  0  3  6  3  3  6  3  6  3  0  0  3  6
 0  0  3  0  6  3  6  3  6  0  3  3  0  6  0  0  3  3  6  6  6  6  3  0  0  3  6  0  0  3  6  3  3  6  0  3  6  0  0  3  6  6  0  6  6  6  6  6
 0  0  0  3  6  6  0  6  6  6  3  0  6  0  6  3  3  0  3  3  3  6  3  0  3  6  0  0  3  6  6  6  3  0  6  6  3  3  3  0  3  6  0  0  0  6  3  6

generates a code of length 48 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 93.

Homogenous weight enumerator: w(x)=1x^0+138x^93+162x^94+18x^96+324x^97+22x^99+60x^102+4x^117

The gray image is a code over GF(3) with n=432, k=6 and d=279.
This code was found by Heurico 1.16 in 2.02 seconds.