As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT CHECKLIST, LEFT PACK LIGHT ILLUMINATED DURING RECALL AND EXTINGUISHED WITH MASTER CAUTION. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE REF B737-800 FIM 21-62 TASK 801 RESET CONTROLLERS AND NO FAULTS PRESENT. RAN PACKS, LEFT PACK LIGHT REMAINED EXTINGUISHED DURING RECALL AND MASTER CAUTION RESET. OK FOR SERVICE.