As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATES DURING MASTER CAUTION RECALL. LIGHT EXTINGUISHES WHEN MASTER CAUTION SYSTEM IS RESET. ACFT GROUNDED. R & R LEFT TEMPERATURE CONTROL VALVE IAW AMM 21-51-10-000-801 AND 21-51-10-400-801. OPS CHECK GOOD IAW AMM 21-51-00-400-801 PARAGRAPH E. GROUND FUNCTIONAL TEST GOOD IAW AMM 21-51-10-400-801, PARA E.