The generator matrix

 1  0  0  0  1  1  1  1  1  1  X  1  1  1  1  1  1  1  1  X  1 aX (a+1)X  X  1  1 (a+1)X  1  1  1  1  1  X  1  1  1 aX  1  X  1  1  1  1  1  0  1  1  1  1  X  1  1  X  1 aX  1  1  1 (a+1)X  1  1  X aX aX aX aX  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  X  1  1  1  1 aX  1  1  0  1
 0  1  0  0  0  0 (a+1)X (a+1)X (a+1)X aX  1 aX+1  1 (a+1)X+1 X+a+1  1 aX+a+1 X+1 aX+1  1  1  1  1  1  X X+a+1  1  X aX+1 aX+a+1 (a+1)X+1 X+a+1 aX  a (a+1)X+a+1 aX+a  1 aX+a  1 aX+a+1 X+a+1 X+a+1 aX aX+a+1  1  0 (a+1)X+a X+a X+a  1  1 (a+1)X+a+1  1  a  1 (a+1)X+1 aX+a (a+1)X+a+1  0  X (a+1)X+1  1  1  1  1  1 aX+1 X+a X+a+1  1 aX+a+1 (a+1)X+a+1 aX+1 aX+a+1 a+1  a (a+1)X aX a+1 aX+a aX+a+1 (a+1)X+a  1 a+1  X aX  X  1  X  X  1 aX
 0  0  1  0  0  X  0 (a+1)X+1  a (a+1)X+1 (a+1)X+1  1  X aX+1  X aX (a+1)X+1 aX+a aX+a+1 X+a (a+1)X+a+1 X+a+1 aX+a  0 aX+a (a+1)X+a X+1 aX+a+1 aX+a aX+1  X (a+1)X  1 aX+a+1 aX+a aX+1 aX  a aX+a+1 X+a+1 aX+1 aX+a+1 (a+1)X+a+1 (a+1)X+a X+1 aX+1 X+1 (a+1)X+a+1 (a+1)X a+1 aX+1 (a+1)X+a+1 X+a+1 (a+1)X (a+1)X a+1 aX (a+1)X  1 (a+1)X+a (a+1)X+a (a+1)X aX+a (a+1)X a+1 aX+a X+a+1  1 a+1 a+1  1 (a+1)X+a+1 aX+a a+1 aX+1  1 X+a  1 X+a+1 (a+1)X+1  X (a+1)X  0 a+1  X  X aX+1 aX+1 aX a+1 (a+1)X aX+a
 0  0  0  1  1 (a+1)X+a a+1 a+1 X+a+1  a (a+1)X+a+1  X aX+a+1 (a+1)X+1  1 (a+1)X+a aX+a X+a+1 (a+1)X+1 aX+1  a (a+1)X+1  X a+1 (a+1)X+1 aX+a aX+a (a+1)X+a+1 X+a aX+1 aX (a+1)X a+1  0 (a+1)X (a+1)X+a aX+1 aX+a X+a aX+a+1 X+a+1 (a+1)X  1 (a+1)X+1  X  1  1 X+a+1 aX+a  1  a aX+a X+a X+a+1 aX+a aX+a+1  0  a (a+1)X+1 X+a aX aX+a+1 (a+1)X+a+1 (a+1)X+a X+a+1 (a+1)X+1 (a+1)X+a aX  a a+1 aX aX+a+1 X+a  1  0 (a+1)X+a+1 (a+1)X+1 X+a+1 X+a  a X+a+1 (a+1)X aX+1 (a+1)X+a+1 aX+a (a+1)X+a  1 aX+1  X  a aX+1  X
 0  0  0  0 (a+1)X  X aX  0  X (a+1)X  0  0  0 (a+1)X aX (a+1)X aX aX aX  X  0 (a+1)X (a+1)X aX aX  X  0 (a+1)X  X (a+1)X  X (a+1)X  X (a+1)X  0  0  0 aX (a+1)X aX  0  X  X (a+1)X (a+1)X  X aX aX  0 aX  X aX  0  0  X  X (a+1)X  X aX aX  0 (a+1)X aX (a+1)X  0  0 aX  X  X (a+1)X (a+1)X  X  0 aX  X  X  0 (a+1)X (a+1)X (a+1)X  0  X aX (a+1)X  0 (a+1)X aX aX (a+1)X aX (a+1)X  X

generates a code of length 92 over F4[X,sigma]/(X^2) who´s minimum homogenous weight is 254.

Homogenous weight enumerator: w(x)=1x^0+336x^254+444x^255+693x^256+876x^257+2232x^258+2352x^259+2697x^260+2772x^261+3660x^262+4368x^263+5280x^264+4500x^265+7164x^266+6852x^267+7470x^268+6588x^269+9816x^270+9792x^271+9927x^272+9420x^273+12180x^274+12132x^275+11364x^276+10164x^277+13428x^278+12012x^279+11865x^280+9912x^281+11856x^282+10080x^283+8718x^284+6660x^285+8172x^286+6156x^287+5118x^288+3264x^289+3612x^290+2628x^291+1911x^292+984x^293+1152x^294+636x^295+366x^296+156x^297+108x^298+132x^299+66x^300+12x^302+18x^304+24x^308+6x^312+6x^316+3x^320+3x^328

The gray image is a linear code over GF(4) with n=368, k=9 and d=254.
This code was found by Heurico 1.16 in 425 seconds.