As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER START RECALL, RT PACK LIGHT ILLUMINATED. EXTINGUISHED WITH RESET OF M/C. ACFT GROUNDED. PERFORMED PZTC BITE IAW AMM 21-61-00-700-806-802 ON BOTH CONTROLLERS. FOUND TCV FAULT ON THE NR 2 CONTROLLER. REMOVED AND REPLACED THE RT PACK TCV IAW AMM 21-51-10/401. OPS, BITE, AND LEAK CHECKED GOOD.