What was found
LEFT PACK OFF LIGHT INTERMITTENTLY ON WITH PACK OPERATING, PACK RESET SWITCHES, BOTH PACKS OPERATIVE. TRANSFERRED TO MDDR 139115, IAW MEL 21-52-01A, CAT C. REMOVED AND REPLACED FLOW CONTROL CARD ASSEMBLY, IAW AMM 21-51-09. PACK OFF LIGHT OPERATIONS CHECK GOOD. NO FURTHER DEFECTS NOTED. THIS CLEARS DMI 139115. T/S PER WDM 21-51-11.