As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1044, DIVERTED. CLIMBING FL 240-270, ODOR OF BURNING SUBSTANCE ACCOMPANIED BY LOUD WHINNING NOISE ON LT SIDE. AGAIN AT CRUISE ON FL 340 ODOR BECAME WORSE FOLLOWED NOISE SUBSIDING & VENT BLOWER ECAM STATUS. INSPECTED THE ACFT AND FOUND THE SOURCE OF THE ODOR AND NOISE TO BE BLOWER FAN 20 HQ. REMOVED AND REPLACED BLOWER FAN IAW AMM 21-26-51, OPS CHECKED GOOD. NO ODOR OR NOISE PRESENT AT THIS TIME. ACFT IS OK FOR SERVICE.