What was found
AFTER CLEARING RUNWAY RAISED FLAP HANDLE TO UP POSITION AND GOT L/E SLAT ASSY MESSAGE ON EICAS. BITE PSEU FOUND LT NR 3 I/B SLAT SENSOR AT FAULT CODE 013. REMOVED ACCESS PANEL 521TB. REPLACED SENSOR 284 PER M/M. REPLACED SENSOR SWITCH, BOLT, WASHER AND NUT. CHECKED ADJUSTMENT BOTH POSITIONS, ALL NORMAL. CYCLED L/E SLATS, ALL IND NORMAL. BITE ON PSEU NORMAL PER M/M 27-88-01-2.