What was found
RIGHT HORIZONTAL STABILIZER, REAR SPAR, FROM O/B TO I/B SIDE, NR 4 ELEVATOR HINGE SUPPORT, SEVERAL SCREWS CORRODED. REMOVED LIGHT CORROSION ON SEVERAL SCREWS AT RIGHT STABILIZER REAR SPARE NR 4 ELEVATOR HINGE SUPPORT IAW B717 SRM 51-10-04.