What was found
AIRCRAFT RETURNED TO PLATFORM DUE TO AFTER START ENGINES AND DURING FLAPS EXTENSION, THE FLAPS NOT DOWN TO THE FLAP LEVER POSITION SET 5 ONLY DOWN TO 1. MAINTENANCE PERSONNEL PERFORMED THE FIM DMC-B787-A-27-50-F1-51A-421A-A AND DMC-B787-A-27-50-F1-50-F8A-421A-A PROCEDURES, DETECTING MESSAGES IN STATUS OF FLAP GROUND INHIBIT AND ELEC SPOILER SYS AND SHOWING FAILURE CODES 27-22181 AND 27-23-003. AIRCRAFT WAS SENT TO THE HANGAR AND MAINTENANCE PERSONNEL REPLACED THE FLAP SKEW IAW DMC-B787-A-27-51-00-11A-320B-4 AND THE EMCU SPOILER NUMBER 4 WAS REPLACED IAW DMC-B787-A-27-61-18-00A-520A-A AND DMC-B787-A-27-61-18-00A-720A-A, TESTED CORRECT.