TIMS indicated smoke and fire detector lost power in car 2556. Fault self-cleared when train arrivedat platform. ~~~~~ 2556 TIMS indicated smoke and fire detector lost power.    Fault self-cleared when train arrived at platform.  2556 found FC 735. Replaced #2556 Fire Control Panel Power Supply. Monitored for 1 hr, SATIS.  Aliff/Chan/Redzwan 45223