As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT CAME ON, EXTINGUISHES AFTER RESET. BITE TEST OF PACK/ZONE TEMP CONTROLLERS LOGGED NR 2 TCV FAULT, REF T/C 21-51-00-700-803. REPLACED TEMP CONTROL VALVE IAW MM 21-51-10 TO STEP 3A TO 3D7. ACCOMPLISHED STEPS 3E TO F4. OPS CHECKED GOOD.