What was found
FLAP FAIL ON APPROACH TO LANDING WHEN SELECTING FLAP 45. PERFORMED TROUBLESHOOTING WITH BREAKOUT BOX GSE 398, CODES SENT TO ENGINEERING, ADVISED TO PERFORMED 0 DEG FLAP RIGGING, WHEN ACTUATING FLAPS NOTICE FFS (FLAP FLEXIBLE SHAFT) NR 5 ON RT SIDE HAVING SOME VIBRATION. R & R RT FFS NR 5, PERFORMED FLAP ZERO DEGREE RIGGING, NO DEFECTS NOTED, ACTUATED FLAP 10 TIMES FROM 0 TO 45, NO DEFECTS NOTED OR MESSAGES. PERFORMED REMOVAL AND INSTALL FPDU ON WING STUB STRUCTURE. INISHED FPDU INSTALLATION, INSTALLED FFS#1 ON RH AND LH SIDE OF FPDU. PERFOMED OPS CHECK 5 CYCLES , OPS CHECK SAT, NO DEFECTS NOTED