What was found
AIRCRAFT RETURNED TO PLATFORM DUE TO AFTER START ENGINES, THE RIGHT ENGINE CONTROL LIGHT TURNED ON. MAINTENANCE PERSONNEL PERFORMED BITE TO CMCF IAW FIM DMC-B787-A-G13-20-F1-52A-421A-A, SHOWING FAILURE CODE 73-11152 AND DURING CHANGE OF THE CONFIGURATION TYPE BOX WAS DETECTED THE CHANNEL A CONNECTOR LOOSE; SO THE CONFIGURATION TYPE BOX CHANNEL A CONNECTOR WAS CONNECTED IAW AMM DMC-B787-A-G13-20-F1-52A-421A-A, TESTED CORRECT.