What was found
CREW REPORTED, "SLATS DRIVE" MESSAGE DISPLAYED DURING CLIMB FOUND MSG 27-22321. FOLLOWED FIM . REPLACED SLAT SKEW DETECTION MECHANISM ASSY. ALL OPERATION NORMAL AND SLATS PRIMARY FCM L GND TEST PASS , NO MSG FOUND. ALSO SLAT BRAKAWAY CONNECTOR FUNCTION TEST NORMAL. FLAP AND SLATS OPERATION ALL NORMAL. REF FIM DMC-B787-A-27-80-F1-29A-421A-A, IAW DMC-B787-A-27-89-05-00B-340A-A. DMC-B787-A-27-89-03-00A-520A-A,AMM OBSERVED OUTBOARD LEADING EDGE SLAT SKEW DETECTION MECHSNISM INS TALLATION NO DEFECTS NOTED.