As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT DIVERTED TO MIA AND DECLARED EMERGENCY DUE TO LANDING GEAR 1 FAULT INDICATION. MAINTENANCE FOUND POST FLT - LGCIU 1 & LLG (27GA) SENSOR FAULT. IAW TSM 32-31-00 AND AMM 32-31-73 REMOVED & REPLACED LLG CLOSED DOOR SENSOR (27GA) AND LGCIU-1 (5GA1). ALL OPS CHECKS NORMAL. (SEE SDR # AALA201911209044)