What was found
WHEN MLG WAS SELECTED TO DOWN ON APPROACH TO FCO CREW REPORTED THAT ALL WAS QUIET & NOTHING HAPPENED. ALT GEAR EXTENSION USED & CREW GOT EICAS MSG GEAR DISAGREE AND NO GREEN NLG LIGHT. ALT GEAR EXTENSION USED AGAIN DURING A GO AROUND AND 3 GREEN MLG LIGHTS WERE ILLUMINATED. A/C LANDED W/O PROBLEM. GEAR SWUNG 3 TIMES & ALL OPS CHECKED GOOD. GEAR AREA INSPECTED INCLUDING GEAR, DOORS, ALL THE STOPS, AND CONTROL MECHANISMS & NO FAULTS WERE FOUND. GEAR FULLY LUBRICATED & MLG LEVER CONTROL MODULE (SWITCH) R & R IAW MM 32-31-01 AS A PRECAUTIONARY MEASURE. MLG CONTROL SYS, ALT EXTEND SYS, & POSITION INDICATION WARNING SYS TESTED IAW MM 32-31-00, 32-35-00, AND 32-61-00 AND ALL TESTS PASSED WITH NO DEFECTS NOTED.