TC reported air- con fault. Staff (LKS)checkedand reset #2 set air-con at RM2 car - ok. Car was c ooling. Thereafter fault recurred. ~~~~~ 2533 A/C1 having fault code 508 -A/C inverter failure. To check and rectify. TC reported air- con fault. Staff (LKS) Found 2533 AC1 P/V/F ,not running. TIMS showed FC508 AC1 inverter failure. OP20 raised for TWD followup due to hatch access required. AC2 operation ok. N.A KWOK/SHAARI/26.04.23