What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: TRAILING EDGE FLAP ASYMMETRY DURING APPROACH; ONE UP AND ONE AT LESS THAN 1 DEGREE. AIRCRAFT EMERGENCY LANDED SAFELY AT PHL. PERFORM BITE TEST OF THE FLAP AND SLAT ELECTRONICS UNIT (FSEU), PER FIM 27-51-00-810-801 FOR EXISTING FAULTS THERE WAS NO FAULTS. TEST PASS THE FAULT HISTORY FOR THAT LEG 0 THAT IT HAD FAULT HAD NO FAULT. PERFORM BITE TEST OF THE TRAILING EDGE FLAP LOAD RELIEF SYSTEM, PER AMM 27-51-00-740-803 TEST PASS NO FAULTS. PERFORM BITE TEST OF THE TRAILING EDGE FLAP ASYMMERTY SKEW SYSTEM, PER AMM 27-51-00-740-802 TEST PASS NO FAULTS. NO FAULT FOUND AT ALL ON ANY FLIGHT CONTROL SYSTEM.