The generator matrix

 1  0  1  1  1  0  1  1 21  1  1  1
 0  1  1 26 18  1 25 20  1  2 18 16
 0  0 24  0 18  6 15  6 18  3 24 18
 0  0  0  3 12  9  3 18 15 24 12 18

generates a code of length 12 over Z27 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+498x^18+1458x^20+1668x^21+7290x^22+5832x^23+19422x^24+14580x^25+5832x^26+2264x^27+204x^30

The gray image is a code over GF(3) with n=108, k=10 and d=54.
This code was found by Heurico 1.16 in 1 seconds.