What was found
PER MAINT CONTROL SCOTT CSS FAIL START ATTEMPT AT FL 410 W/ FAULT LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED BITE CHECK OF APU REF B737-800 AMM 49-61-00 - FOUND STOPS CHECK NORMAL. PER TECH SERVICE REMOVED AND REPLACED INLET TEMP SENSOR REF B737-800 AMM 49-61-31 & REMOVE AND REPLACE PRESS SENSOR AND SENSE LINE BLOW OUT REF AMM 49-52-31. INSPECTION OF DP & TP SENSORS NO DEFECTS NOTED. OP CHECK OF APU NORMAL - BITE CHECK - NO FAULTS.