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  1  1  1  1  1  1  1  1  0  1 18  1  0  1  0  3  3  0  0  3
 0  3  0  0 24 21 15  3 24 21 18  0 21 15  9 24 15  3 15  9 12  3 15 18  0 15 21  3  6 18 24  0 15  3 24  3 12  6 18 21 21  3  3  0  3  6  3 24  3 18 24  3 18 24
 0  0  3 24  0 15 21  3  6  6 21  0  3 21 15 18  6 18 15  3  6 21 12 15  9 18 18  0 21  0 18  9 21  9  3  3  3  6 24 18  6 21  6  3 21  0  9  6 15 24 15  6  3  0
 0  0  0  9  0  0 18  0  0  9 18  9 18  9 18  9  9 18 18  9 18  9  0  0  0  9  0  9  0  9  0  0 18  0  9  0  0  0  9  9  9 18 18  9  9 18 18  9  0 18  9  0  0 18
 0  0  0  0  9 18  0  9 18  0 18  9  0  0  0  9 18  0  0 18 18  0  9  9 18  0 18  9  0 18  0  9 18  9  9  0 18  9  9 18 18 18 18  9 18  0  0  0 18 18  0  0 18  9

generates a code of length 54 over Z27 who´s minimum homogenous weight is 99.

Homogenous weight enumerator: w(x)=1x^0+600x^99+18x^100+72x^101+1410x^102+144x^103+576x^104+2114x^105+1404x^106+1728x^107+2744x^108+2520x^109+1818x^110+2554x^111+288x^112+180x^113+736x^114+458x^117+244x^120+64x^123+2x^126+4x^129+2x^132+2x^135

The gray image is a code over GF(3) with n=486, k=9 and d=297.
This code was found by Heurico 1.16 in 51.6 seconds.