2558: TIMS SHOWED SERVICE BRAKE NG (TRAI ~~~~~ 2558: TIMS SHOWED SERVICE BRAKE NG (TRAIN PREP)  2558 ACU replaced as requested by Duty AE. Security/function test - OK. No further abnormalities found.  Isam/Izzul/Faiz/Fudail 44914    #2558 ACU S/N : OLD : 1024/033 NEW : 1047/079