TIMS showed air-con fault. Staff (SOM) checked and confirmed car 2539 #2 set faulty. Reset - ok. Carwas cooling. ~~~~~ 2539 TIMS showed A/C 2 fault. Staff (SOM) confirmed 2539 A/C 2 faulty. Reset - ok.    Car was cooling.  2539 A/c 2-1 found suction line coupling slight seepage & re-tightened - OK. Discharged & vacuum to 30mm/Hg, then recharged 7kg of 407C freon. HP=115 psi LP=38 psi. Function test - OK. Leak check on CCU, suction/discharge couplings & charging nipples - OK. compressor Tong current 9.8 Amp.  Chan SW/Hanafi 44127