What was found
WHEN CONFIGURING FOR APPROACH, SELECTED FLAPS 1. GOT TRAILING EDGE FLAPS DISAGREE EICAS AND ANNUNCIATOR. FLAPS DID NOT MOVE. FLAP LEVER WAS FIRMLY IN THE FLAPS 1 DETENT. REFERENCED THE QRH AND PUT THE FLAPS TO 20 USING THE ALT FLAPS SWITCH. LANDED WITH FLAPS 20. ***EMERGENCY DECLARED*** SHGN 15MAY25 06:07 MEM FIM: 27-51-00-815-804 AMM: 27-51-00-5 WHILE TROUBLESHOOTING, FSEU #1 AND #3 HAD NO FAULTS. FSEU #2 (-32) HAD THE "ALT ARM DISAG" LED DISPLAYED. CONTINUED TROUBLESHOOTING PER BLOCK 26, SHEET 11 OF B757 FIM 27-51-00-815-804. CYCLED FLAPS PER B757 AMM 27-51-00-5 WITHOUT ANY FAULTS. THE FORWARD CARGO DOOR AND E5 DOOR PANEL ARE OPEN FOR CONTINUED TROUBLESHOOTING PURPOSES. FACT 15MAY25 08:01 MEM NO FAILED LRU'S DURING BITE CHECK OF FESU #3. FESU #1 INDICATED A FLAP DISAGREE AND FESU #2 HAD A FLAP SYSTEM FAULT FOR NO MOTION. INSPECTED ALL FLAP TRANSMISSIONS OF BOTH L/H & R/H WINGS. FOUND L/H WING INBOARD FLAP, INBOARD TRANSMISSION OVERLOAD INDICATOR TRIPPED. DRAINED AND RESERVICED TO FULL, 16OZ. NO LEAKS NOTED. RESET INDICATOR. FOUND L/H WING OUTBOARD FLAP, OUTBOARD TRANSMISSION OVERLOAD INDICATOR TRIPPED. RESERVICED TO FULL, 2 OZ. NO LEAKS NOTED. RESET INDICATOR. CYCLED FLAPS THROUGH FULL TRAVEL WITH NO DEFECTS NOTED. ALL OPS CHECKS GOOD. A/C OK FOR SERVICE. THE FORWARD CARGO DOOR AND E5 DOOR PANEL ARE CLOSED.