What was found
ROLL/YAW ASYMMETRY EICAS CAUTION MESSAGE ON CLIMB OUT. WORKED FIM TASK DMC-B787-A-27-00-F2-T8A-421A-A FOR MX MESSAGE 27-1777. ACCOMPLISHED LEF AND RIGHT AILERON TESTS REF AMM LEFT AND RIGHT FLAPERONS TEST REF AMM B787-A-27-11-00-09A-300B-A AND AMM B787-A-27-11-00-10A-300B-A NO FAULTS NOTED. REVISITED LP FAULT:27-17771 B787-A-27-11-00-07A-300B-A, AMM B787-A-27-11-00-08A-300B-A AND FOLLOWING STEP TO LOCK OUT IN PLACE. FOUND #10 SPOILER ACTUATOR EXTENSION NOT AS SPECIFIED ON THE FOLLOWING STEP ON DEACTIVATION DDG DMC-B787-A-27-00-00-19A-721B-A. SEE LOG PAGE 7026013(SPOILER ON MEL).