The generator matrix

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

generates a code of length 19 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 24.

Homogenous weight enumerator: w(x)=1x^0+54x^24+140x^27+182x^30+264x^33+1786x^36+13122x^38+3320x^39+384x^42+244x^45+116x^48+54x^51+16x^54

The gray image is a code over GF(3) with n=171, k=9 and d=72.
This code was found by Heurico 1.16 in 0.445 seconds.