As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXCESSIVE DUCT PRESSURE SPLIT DURING CLIMB LEFT 44 RIGHT 18, STABILIZED AT CRUISE TO L42 R24. FOUND HIGH STAGE VALVE NOT OPERATING NORMALLY STUCK IN BETWEEN OPEN AND CLOSED. REPLACED HIGH STAGE BLEED VALVE REF AMM 36 11 06 00 801, LEAK CHECK NORMAL, OPS CHECK NORMAL. PERFORMED ENGINE BLEED AIR CROSSOVER OPERATIONAL TEST. OPS NORMAL REF 36 11 00 710 801. VERIFICATION FLIGHT SUCCESSFUL.