As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED DURING AFTER START CHECK LIGHT EXTINGUISHES UPON MASTER CAUTION RESET. ACFT GROUNDED. R & R RT PACK TEMP CONTROL VALVE REF AMM 21-61-21-400-801. OPS CHECK GOOD, REF FIM 21-62, TASK 831, RT PACK FAULT CLEARED. ACFT CLEARED FROM MEL 21-33E.