What was found
ON APPROACH, FLAPS STOPPED AT THE FLAP 2 POSITION DURING EXTENSION. THERE WAS A BRIEF LAG OF THE LEFT FLAP NEEDLE BEFORE STOPPING AT FLAPS 2. NO ROLL NOTED. FOLLOWED QRH AND EXTENDED FLAPS TO 15 USING THE ALTERNATE FLAP EXTENSION. APPROACH WAS NORMAL. GROUNDED - YES. EMERGENCY DECLARED - FAULT CODE 27-52261 LOGGED IN FSEU. COULD NOT DUPLICATE AT THIS TIME BUT SUSPECT LEFT FLAP POSITION SENSOR. NO EXISTING FAULT IN FSEU BITE REF FIM 27-51 TASK 801. FAULT HISTORY LISTED FLAP POS DISAGREE. CYCLED FLAPS BETWEEN 0-10 NUMEROUS TIMES, NO DISCREPANCY. REPLACED FLAP POSITION INDICATOR REF AMM 27-58-02. TESTS PASS.