What was found
APU CTS ATP TREND DATA SHOWS MES EGT IS AT OR NEAR THE ESTABLISHED THRESHOLD. INDICATION ERRORS ARE SUSPECT. ACFT GROUNDED. R & R APU INLET TEMP SENSOR (T2). REMOVED THE INLET PRESSURE SENSOR (P2). EXAMINED THE ORFICE IN THE SENSOR TO MAKE SURE IT IS NOT BLOCKED. EXAMINED THE FITTING IN THE INLET PLENUM TO MAKE SURE IT IS CLEAR. CLEANED THE SENSOR AND CONNECTORS AS NECESSARY. REINSTALLED THE INLET PRESSURE SENSOR REF AMM 49-52-31, REF MM 49-61-31 & MM 49-52-31. NO FAILURES FOUND ON APU BITE TEST.