What was found
CREW REPORTS: AFTER GEAR RETRACTION GOT "GEAR DISAGREE & GEAR DOOR" EICAS. SYNOPTIC SHOWS MLG DOORS OPEN. CAN FEEL VIBRATION/BUFFET. DMC-B787-A-32-30-F1-05A-421A-A ACP GEAR DR TEST ,AFT TEST MESSAGE SHOWED NOT ACTIVE ON INBOUND FLIGHT DECK EFECTS PAGE, CYCED GEAR LEVER 2 TIMES, NO MESSAGES, GEAR DOOR OPS CHKD NORMAL. ON CREW DEBRIEF CAPT SAID THEY FLEW WITH GEAR HANDLE UP POSITION, GEAR (3) ALL UP, NLG DOORS CLOSED & BOTH MAIN GEAR DOORS DOWN . WHEN CREW PUT GEAR HANDLE IN DOWN POSITION, NLG OPS NORMAL & MLG DROPPED TO LANDING POSITION & GEAR DOORS CLOSED, ALL STATUS MESSAGES CLEARED. PLACED PLANE INTO AIR MODE IAW AMM 32-09-00-06A-721B-A. IN REF AMM 07-11-01-00A-912A-A, PREPARED PLANE FOR JACKING AT POINT A, B, C, AND AUXILLARY D. JACKED PLANE TO 40 TONS LT MAIN, 60 TONS RT MAIN, & 15 TONS TAIL. RT & LT MAIN JACKS POPPED OR JUMPED. CREW NOTIFIED ENGINEERING PROVIDED THE INCORRECT CENTER OF GRAVITY. PLANE RETURNED TO GROUND AWAITING NEW CG.