What was found
APU TREND DATA SHOWS CT5ATP TEMP IS AT OR ABOVE THE THRESHOLD 605 DEGREES. ETOPS SIGNIFICANT SYSTEM. TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. UPON COMPLETION, CONTACT MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS AFFECTED APU IN-FLIGHT START CAPABILITY, MEL 49-99A IS REQUIRED PRIOR TO FLIGHT. GROUNDED-YES. COMPLETED B737-800 FIM TASK 49-40 TASK 825 STEP D.(2)- FUEL NOZZLE REMOVAL & REPLACEMENT, REF B737-800 AMM 49-31-14. OPS AND LEAK CHECK GOOD. VERIFIED W/TECH SERVICES TO KEEP MONITORING APU EGT TREND DATA. TECH SERVICE REVIEW OF APU DATA SHOWS CT5TP TEMP HAS RECOVERED TO 595 DEGREES AFTER FUEL NOZZLE REPLACEMENT.