What was found
LEFT WING NR 3 FLAP JACK SCREW BALL NUT IS CORRODED. 77-65. REMOVED LT WING NR 3 FLAP JACK SCREW BALL NUT IN REF 757, AMM 27-51-11-024-001. DURING OK TO INSTALL, FOUND INNER BORE OF BALLSCREW YOKE RUSTY. REMOVED LT WING NR 3 AFT UNIVERSAL JOINT FROM INBD T/E FLAP OTBD TRACK IN REF TO AMM 27-51-11-024-001. INSTALLED AFT UNIVERSAL JOINT AND BALLSCREW ASSY ON LT WING NR 3 T/E FLAP TRACK IN REF TO AMM 27-51-11-424-020 TORQUE ID 14-289, DUE DATE 16SEP16,VERIFIED AEROSHELL 33 USED. SAA 042. PERFORMED OPS CHECK ON LT WING, NR 3 FLAP JACK SCREW BALL NUT IN REF TO AMM 27-51-02-825-001. OPS CHECK GOOD JOB COMPLETE.