As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1784 BOG-MCO, AIR RETURN TO BOG AFTER TAKEOFF DUE TO LOST OF ALL HYD FLUID FROM GREEN SYSTEM STRONG BURNING SMELL THROUGHOUT CABIN. FOUND LG SAFETY VALVE SEPARATED FROM MANIFOLD AND BOLT FAILURE. REMOVED AND REPLACED SAFETY VALVE IAW AMM 32-31-17-04. OPERATIONAL CHECK NORMAL.