What was found
ON FINAL, AFTER SELECTING FLAPS 25, FLAPS REMAINED AT 20 AND RECEIVED A TE FLAPS DISAGREE EICAS MESSAGE. COMPLIED WITH QRH. PERFORMED AN OPS CHECK OF SERVICING AND LUBRICATION OF FLAP TRANSMISSONS, BALLSCREWS, AND TORQUE LIMITERS IAW AMM 12-13-06-3, AND AMM 12-21-09-03. FOUND ONE FLAP TRANSMISSION OVERLOAD INDICATORS TRIPPED. PERFORMED TROUBLESHOOTING IAW FIM 27-51 FAULT TREE 808. ON THE GROUND, THE FLAPS MOVED TO UP POSITION BY USING ALTERNATE SYSTEM, NO DEFECT FOUND. FLAPS MOVED THREE TIMES FROM 0 TO 30 BY NORMAL HYDRAULIC SYSTEM, WITH NO EICAS MESSAGE AND NO VISUAL DEFECTS FOUND. FSEU BITE TESTED IAW FIM 27-51-00/101. FSEU 1 SHOWS MESSAGE FOR FLAP DISAGREE N 305, FSEU 2 SHOWS MESSAGE OF FLAP DISAGREE N* 327, FSEU 3 SHOWS MESSAGE OF FLAP PDU XMTR. REPLACED THE LT AND RT FLAP POSITION TRANSMITERS IAW AMM 27-58-03-4-0.