The generator matrix

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

generates a code of length 11 over Z27 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+8x^18+216x^22+16x^24+2x^33

The gray image is a code over GF(3) with n=99, k=5 and d=54.
This code was found by Heurico 1.16 in 0.000289 seconds.