What was found
DURING CRUISE, NOTICE EICAS MESSAGE WITH CODE 27-48-03-00 STABILIZER TRIM DISPLAYED AND STABILIZER TRIM LIGHT ILLUMINATED WITH STABILIZER TRIM OPERATES AT HALF SPEED. THE CREW RETURNED TO DEPARTURE WITHOUT FURTHER INCIDENT. MX PERFORMED PROCEDURES IN FIM 27-48-00, FIG 106, BLOCKS 1,2,3 AND 63, NO DEFECTS NOTED. ACFT WAS RETURNED TO SERVICE.