As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COCKPIT AIRFLOW GETS SLOW DURING CLIMBOUT AND CRUISE. COCKPIT HOT AND UNABLE TO COOL. PERFORMED VISUAL INSPECTION OF LEFT PACK - FOUND 3 INCH CRACK IN LOWER FORWARD WELD OF THE LEFT CONDENSER. REPLACED LEFT CONDENSER (10HM2) REF AIRBUS A320 AMM. LEFT PACK PASSED OPERATIONAL TEST OF CTC REF AIRBUS A320 AMM.