What was found
EMERGENCY DECLARED, LANDED W/OUT INCIDENT, NO HAZMAT. TRAILING EDGE TE FLAP ASSY EICAS MESSAGE DISPLAYED FL 400 POS IND. DISPLAYED UP POSITION.PERFORMED FSEU BITE PROCEDURE PER FIM 27-51-00-815-805 FOUND MSG 221 CHECKED RT FLAP POS. XMITR FOUND LOOSE CANNON PLUG, RECONNECTED CANNON PLUG, ACCOMPLISHED FIM 27-51-00-815-814 FSEU DISPLAYED & OPERATED FLAP/SLAT THROUGH 5 CYCLES NO DISCREPANCIES NOTED. OPS CK GOOD, NO PREVIOUS HISTORY, A/C OK TO CONTINUE.