As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT DIVERTED DUE TO LGCIU 1 FAULT. LANDING GEAR GEAR AURAL, INDICATED ALL THREE UNLOCKED. PERFORMED INDICATION CHECK AND GEAR WAS UP AND LOCKED. WHEELS -SD- SHOWED AMBER XX ALL GEARS. R & R LGCIU (5GA1) IAW AMM 32-31-71 AS A PRECAUTION. LANDING GEAR CONTROL LEVER WAS ALSO REPLACED. PERFORMED LANDING GEAR LEVER CHECK IAW MM 32-31-11 AND LANDING GEAR SWING IAW MM 32-31-00, FOUND OK.