As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE COMPLETING AFTER TAKEOFF CHECK, NOTICED PACK LIGHT. COMPLETED PACK QRH WITH PACK LIGHT STILL ON. APPROX 10 MINS LATER PACK LIGHT WENT OUT BUT DID ILLUMINATE UPON RECALL. ACFT GROUNDED. PERFORMED FIM TASK 21-62, TASK 801. FOUND THIS PACK TCV FAULT LOGGED. ACCOMPLISHED BITE TEST ON BOTH TEMP CONTROLLERS, THIS PACK TCV FAULT CLEARED AND LIGHT REMAINED OUT. SYS GROUND VERIFICATION CHECKS NORMAL.