What was found
AFTER GEAR UP SELECTION A "GEAR DISAGREE" WARNING MESSAGE WAS DISPLAYED ON EICAS. FOLLOWED A CHECK LIST AND SELECTED THE GEAR DOWN AND GOT 3 GREEN INDICATORS. RETURNED TO DEPARTURE FOR LANDING. DEFERRED LANDING GEAR SYS IAW MEL 32-30-1 MX PROCEDURE C/W. HANDLE VERIFIED DOWN AND GREEN. INSTALLED DOWNLOCK PINS IAW AMM 10-11-00. ENTRIES IN MM 02 MXC19398 NOTIFIED. READJUSTED NLG PROXIMITY SENSORS PX03, PX24, & PX44 IAW MM 32-61-05 GEAR RETRACTION & EXTENSION PREFORMED, ALL CHECKS GOOD. REMOVED MEL NR 32-30-1 LP NR 1944834-25 MXC NOTIFIED 4632.