What was found
IN CRUISE FLT NOTED ELECT DC PAGE "APU TR" SHOWING 304A, NORMALLY 0, APU OFF FOUND APU TR INDICATING 30V/304A, GREEN. ACCOMPLISHED FWC SYS TEST, BLC BITE TEST AND MCDU APU TR RESET. NO FAULTS NOTED. CONDITION SAME. APU BATTERY COOL TO THE TOUCH. NO EVIDENCE OF OVERHEATING IN AREA. CYCLED APU TR C/B. APU TR INDICATION REDUCED TO 30V/2A GREEN. R & R APU TR IAW AMM 24-32-51. OPS CHECK OK. NO, 30 DAY HISTORY.