What was found
R PACK TEMP EICAS MSG (PACK TEMPERATURE CONTROL SYSTEMS (-200/-300), AUTO MODE) TRANSFERRED ITEM TO MDDR 133072 PER MEL 21-03-01, CAT C, DUE 28 AUG 20 MCC ALEY DISP SP 2222Z. REMOVED AND REPLACED RH PACK TEMP CONTROLLER BOX REF AMM 21-51-14. OPS CHECKS OK. THIS CLEARS MDDR 133072. NOTIFIED MCC.