As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU CT5ATP EGT TREND DATA SHOWS EGT HAS SHIFTED ABOVE THE MAINTENANCE THRESHOLD OF 593 BUT LESS THAN 605 DEGREES. ACFT GROUNDED. R & R APU FUEL NOZZLES REF AMM 49-31-14-400-801 AND IPC 49-31-14-02, ITEM 20. ACCOMPLISHMENT OF THIS MAINTENANCE TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. MEL 49-99A IS REQUIRED PRIOR TO FLIGHT. MEL 49-99A APPLIED, REF LOG PAGE 11496565.