As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK DUE TO THIS PILOT REPORT: 40 MINUTES AFTER TAKEOFF ENGINE 1 VIBRATION SHOWED ON ECAM FROM 2.0 TO 4.0 AND OIL PRESS BETWEEN 58 PSI TO 90 PSI. ACCORDING MAINTENANCE (COTA) RETURNING TO SKBO. THE REMOVED LEFT ENGINE FAN BLADES SET WAS RE-INSTALLED IAW AMM 72-35-41 AND 72-31-41 IAW AMM TASK 71-00-00-700-838 A TEST ENGINE VIBRATION SURVEY WAS ACCOMPLISHED, IT WAS SATISFACTORY. MAX VALVE WAS N1 1,0 AT 1,51 EPR.