As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT SELF ILLUMINATED DURING TAXI. WENT OUT WHEN RESET PUSHED. ACFT GROUNDED. BITE CHECK OF LEFT TEMP CONTROLLER SHOWED TCV FAULT IAW FIM 21-61-00-810-801. REMOVED AND REPLACED THE LT TRIM AIR MODULATING VALVE IAW AMM 21-61-21 400-801 LEAK AND OPS CHECKED GOOD, RAN PACKS NO LIGHT ILLUMINATED.