As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE, LANDING GEAR WAS SELECTED UP. THE LT MAIN DID NOT INDICATE UP AND LOCKED. AN EICAS MESSAGE L/G LEVER DISAGREE APPEARED. GEAR WAS CYCLED IAW THE QRH. RETURNED TO FIELD. DID NOT DECLARE AND EMERGENCY, HOWEVER AN EMERGENCY WAS DECLARED ON OUR BEHALF BY THE TOWER. LANDING GEAR INDICATED DOWN AND LOCKED UPON RETURN. INSPECTED GEAR AND FOUND FORWARD PROXIMITY BACKSHELL UNSECURED. RE-SECURED BACKSHELL. PERFORMED SEVERAL GEAR SWINGS. ALL OPS CHECKED GOOD.