What was found
DURING TEST FLIGHT AFTER BDSF CONVERSION, AT CRUISE ALTITUDE 38,000 FEET, 0.80 MACH A "LE SLAT ASYM" MESSAGE CAME ON WITH FLAP INDICATOR NEEDLE FLUCTUATING BETWEEN 0 TO 1 (WITH LEADING EDGE LIGHT ON).THE MESSAGE CAME ON AND OFF DURING THE DECELERATION AND DECENT AND AT 15,000 FEET 210 KNOTS WAS STEADY UNTIL LANDING.WHEN FLAP HANDLE WAS MOVED TO THE 5 POSITION (TO EXTRACT TE)THERE WAS NO MOVEMENT. TE FLAPS WERE EXTENDED IN ALTERNATE MOD. AFTER TOUCHDOWN "TE FLAPS DISAGREE" MESSAGE CAME ON WITH TRAILING EDGE LIGHT. VISUAL INSPECTION AFTER LANDING CONFIRMED ONLY INNER LE DEVISES EXTRACTED AND OUTER LE FULLY RETRACT.