As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, NOTICED DUCT PRESSURE SPLIT L 15-17, R 45-47. DURING DESCENT L/R PRESSURE WAS EVEN AT 10. PERFORMED FIM TASK 36-10-00-810-810 ON NR 1 ENG REPAIRED FAULTY COMPONENTS. R & R 450 DEG SENSOR IAW AMM 36-11-05. R & R PRE-COOLER CONTROL VALVE IAW AMM 36-12-02. R & R 390 DEG SENSOR IAW AMM 36-12-03. NR 1 ENG LEAK AND OPS CHECKED GOOD.