As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERSION - DUCT PRESSURE SPLIT AT CLIMB THRUST R=43 PSI: LEFT= 17 PSI. N1 (BOTH ENGINES) 100.2%. N1'S EVENED OUT AGAIN AT CRUISE BOTH INDICATED L=10 AND R=30 ON DESCENT WITH THRUST LEVERS AT IDLE. REMOVED AND REPLACED NR 1 PRSOV PER MM.