What was found
TE FLAP DISAGREE EICAS MESSAGE DISPLAYED WHEN FLAP WAS SELECTED TO 5 DEGREES. ACCOMPLISHED QRH 90.20 USING ALTERNATE FLAP PROCDURES FLAP WENT TO 20 DEGREES. DURING FLAP ALTERNATE PROCEDURES, EICAS MESSAGE FLAP DISAGREE EXTINGUISHED. EMERGENCY DECLARED. FSEU BITE PROCEDURE ACCOMPLISHED IAW FIM 27-51 FT 810, WITH NO CURRENT FAULTS NOR EXISTING FAULTS RECORDED. FAULT HISTORY BITE SHOWS "TE FLAPS SEE FIM 27-51104" COMPLIED WITH SHEET 1 AND SHEET 2 BLOCK 1,21,22,23 AND 43. INSTALLED T.E. FLAP ROTARY ACTUATORS. OVERLOAD TRIP INDICATORS WEREN''T TRIPPED. NO EICAS OR MX MESSAGES. ACCOMPLISHED FLAP SLAT MOVEMENT OPERATIONAL CHECKED IAW AMM 27-51-00-501.