As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON TAKEOFF FROM CLT HAD SMELL OF BURNING OIL DISSAPATED AROUND 5-8K. SMELL REAPPEARED 5K ON DECENT INTO LIT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT FOR AALA202303066734: MAINTENANCE REPLACED APU PER TASK CARD 26L31049003** (CLOSED)