As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ON RECALL. GROUNDED - YES. REMOVED LH PACK TEMPERATURE CONTROL VALVE (TCV) PER B737-900 AMM 21-51-10-000-801. INSTALLED NEW (TCV) PER AMM 21-51-10-400-801. PERFORMED VALVE LEAK TEST, LEAK TEST IS GOOD. PERFORMED PACK ZONE TEMPERATURE CONTROLLER BITE TEST PER AMM 21-61-00-700-806-002 PACK ZONE TEMPERATURE CONTROLLER BITE TEST PASSED. GROUND VERIFICATION TEST PASSED. A/C RELEASED FROM MEL 21-33D.