What was found
LEFT PACK LIGHT ILLUMINATED AFTER RECALL, LIGHT GOES OUT WHEN PUSHING MASTER CAUTION. ACFT GROUNDED. PERFORMED A PACK/ZONE TEMP CONTROLLER BITE IAW FIM 21-62, TASK 801, THE LEFT PACK TEMPERATURE CONTROL VALVE FAULT CONFIRMED BY VERIFY TEST. REMOVED, REPLACED, AND TESTED THE LEFT PACK TEMPERATURE CONTROL VALVE IAW AMM 21-51-10-000-801, AND AMM 21-51-10-400-801. OPS NORMAL, NO LEAKS NOTED. PERFORMED PACK/ZONE TEMP CONTROLLER BITE IAW FIM 21-62, TASK 801, NO FAULTS FOUND.