As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MASTER CAUTION AIR COND LIGHT ILLUMINATED AFTER RUNNING DESCENT CHECKLIST. LEFT PACK LIGHT ILLUMINATED. LIGHT EXTINGUISHED AFTER PRESSING MASTER CAUTION - PRESS TO RESET, RAN QRH 12.2. GROUNDED - YES. NR 1 ZONE CONT LOGGED RAM AIR ACT FAULT. FAULT CLEARED & SYS OPS CHECKS NORMAL, PER B737-800 AMM 21-61-00. RAN PACKS, NO FAULTS NOTED. GND VERIFICATION SUCCESSFUL.