As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK LIGHT ON MASTER RECALL OFF WITH MASTER RESET. GROUNDED - YES. REMOVED AND REPLACED RH TEMPERATURE CONTROL VALVE REF B737-800 AMM 21-51-10. PERFORMED OP'S CHECK PER AMM 21-61-00-700-806. LEAK TEST FAIL. FOUND LEAK AT AFT CLAMP LOOSEN DUCT, READJUSTED AND TIGHTENED CLAMP'S PER AMM 20-50-11-910-801. NO HELP OP'S TEST GOOD. INSTALLED TWO NEW CLAMPS AND READJUSTED CLAMPS PER AMM 20-50-11-910-801. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST, PER AMM 21-61-00-700-806-002, OPSCHECK AND LEAK CHECK GOOD, NO FAULTS NOTED.