As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 PACK LIGHT ILLUMINATED, WITH RESET, EXTINGUISHED. ACFT GROUNDED. PERFORMED NR 1 AND 2 PACK TEMP CONTROL BITE. NR 1 PACK TEMP CONTROL HAS TCV FAULT, WILL NOT RESET. R & R THE LT PACK TCV IAW AMM 21-51-10. OPS CHECK NORMAL. NR 1 AND 2 PACK TEMP CONTROL BITE NORMAL. NO PACK LIGHT FAULTS.