The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  3  1  3  1  3  1  1
 0  9  0  0  0  0  0  0  0  9  9 18  9  9  9  9  0  9  9  0  9
 0  0  9  0  0  0  0  9 18 18 18  9  9  9  9  0  0  9  0  9  0
 0  0  0  9  0  0  9 18  0 18  9  9  0  9  0 18  9  0  9  9  0
 0  0  0  0  9  0 18 18  9 18 18  0 18  9 18  0  9  0 18  0  9
 0  0  0  0  0  9 18 18 18  9  0  9 18  0  0 18  0  9 18 18  0

generates a code of length 21 over Z27 who´s minimum homogenous weight is 33.

Homogenous weight enumerator: w(x)=1x^0+106x^33+160x^36+418x^39+5152x^42+538x^45+64x^48+88x^51+30x^54+4x^57

The gray image is a code over GF(3) with n=189, k=8 and d=99.
This code was found by Heurico 1.16 in 0.612 seconds.