2547 Heavy air leak from brake frame, fo ~~~~~ 2547 Heavy air leak from brake frame, fo     #2547 Check and found ACU AF solenoid crack on the base having heavy air leak.Replaced and function check ok.Brake cyclic tested ok.    ACU-New s/n: 1244-109  Old s/n:1019-021 Not: 2193197 raise. Done by Syafiq/Ngieng. 25/08/20