What was found
T/E FLAP DISAGREE, FLAPS STUCK AT 20 ON EXTENTION. WHEN MOVING FLAP HANDLE FROM 20-25 AT 170KTS, MESSAGE AT TRANSIENT, LOAD RELEIF EICAS MESSAGE. EMERGENCY DECLARED. PERFORMED FSEU BITE IAW FIM 27-51-00-815-805-104, NO FAULTS NOTED. T/E FLAP LOAD RELIEF SYS TEST OK IAW AMM 27-51-00-735-16 1. FLAP HYD TEST OK IAW AMM 27-51-00-715-001, PAR H. NO MSG ON ARRIVAL OR DURING OPS CHECK.