What was found
LEFT PACK LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. ACCOMPLISHED PACK ZONE TEMPERATURE CONTROLLER BITE PER B737-800 AMM 21-61-00-700-806-002 DURING BITE TEST LH PACK TEMPERATURE CONTROL VALVE (TCV) SOUNDED BAD. REPLACED LH PACK TCV PER AMM 21-51-10-000-801. INSTALLED TCV PER AMM 21-51-10-400-801. PERFORMED TCV INSTALLATION TEST PER AMM SUB TASK 21-51-10-860-006. INSTALLATION TEST PASSED. PACK ZONE TEMPERATURE CONTROL BITE PASSED WITH NO FAULTS. INSTALLED/REMOVED 3 MIG-51A. A/C REMOVED FROM MEL 21-32B C/N 18033590 REMOVED SEAMC SCOTT NOTIFIED.