As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START RT PACK ILLUMINATED ON RECALL, CLEARED ON MC RAN QRH. GROUNDED - YES. PERFORMED PACK ZONE TEMPERATURE BITE PER B737-800 AMM 21-60-00-700-803-002 RH PACK FAULTED THIS PACK TCV. REMOVED RH PACK TEMPERATURE CONTROL VALVE PER AMM 21-51-10-000-801. INSTALLED TEMPERATURE CONTROL VALVE PER AMM 21-51-10-400-801 PERFORMED TEMPERATURE CONTROL VALVE INSTALLATION TEST PER AMM SUBTASK 21-51-10-860-006 AND PACK ZONE TEMPERATURE CONTROLLER BITE ALL TESTS PASSED.