As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED AFTER LANDING DURING TAXI. LEFT PACK TEMPERATURE HIGH 85'. GROUND RAN LT PACK VERIFIED NO COOLING AIR COMING FROM LT PACK HEAT EXCHANGER. FAILED LT ACM. NEW ACM P/N VERIFIED SEAMC 2206400 2 IPC 21 51 04 01 ITEM 25J. REMOVED AND REPLACED LT ACM PER 21 51 04. COMPLETED PRE INSTALLATION INSP PER SAME REF. COMPLETED ACM INSTALLATION TEST, OPS NORMAL.