The generator matrix

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

generates a code of length 28 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+232x^48+372x^49+726x^50+1404x^51+2676x^52+2832x^53+6710x^54+8220x^55+8448x^56+11872x^57+8214x^58+3810x^59+2088x^60+780x^61+192x^62+264x^63+150x^64+30x^65+28x^66

The gray image is a code over GF(3) with n=252, k=10 and d=144.
This code was found by Heurico 1.16 in 15.9 seconds.