The generator matrix

 1  0  0  1  1  1  1  1  1  1  1 2X  6  1  1  1  1 2X  1  6  1  1  1  1  1 X+6 X+3  1
 0  1  0  3 X+3 2X+4  8  4 2X+1 X+2 2X+8  1  1  X  2 2X+5 2X+3  1  1 X+3  8 2X+6 2X+7 2X+2 2X+6  1  1  3
 0  0  1 2X+4 2X+2 2X+5  8 X+4  X  3 X+1 2X+4  5 X+3 2X+7  5 2X+4  7  X  1 X+1  1 X+2  3 X+5 2X+5 X+1  4

generates a code of length 28 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 51.

Homogenous weight enumerator: w(x)=1x^0+1022x^51+324x^52+1584x^53+3810x^54+672x^55+3018x^56+5004x^57+666x^58+1530x^59+1870x^60+108x^61+18x^62+26x^63+12x^64+6x^65+12x^66

The gray image is a code over GF(3) with n=252, k=9 and d=153.
This code was found by Heurico 1.16 in 0.252 seconds.