What was found
"SLAT FAIL" EICAS MSG AFTER T/O, BEFORE FLAP RETRACTION. QRH CARRIED OUT. MAX WEIGHTLANDING C/O. CONSTANT RT AILERON INPUT NECESSARY TO MAINTAIN WINGS LEVEL. NOT AN OVERWEIGHT LANDING. RT OTBD SLAT SKEW SENSORS PO990 AND PO992 REPLACED IAW FIM 27-81-00-810-807 AND AMM 27-83-01-400-801-A. NR 8 SLAT ACTUATOR REPLACED (AS POP OUT INDICATOR VISIBLE) IAW AMM 27-81-01. REMOVED: SLAT SKEW SENSOR RT INBD PN 1702288B, SN 2752, MFG: SLAT ACTUATOR POS 08R, PN 1700597C, SN 0513, SLAT SKEW SENSOR RT OTBD, PN 1702288B, SN 2616.