What was found
AIRCRAFT VIBRATION AND TROUBLESHOOT USING ECRA 2754-01023. ACCOMPLISHED TROUBLESHOOTING OF VIBRATION IAW ECRA 2754-01023 STEPS 1, 2, & 3 ARE COMPLETED AND STEP 5 LEFT INBD FLAP TRACK NR 1 COMPLETED, MEASUREMENT ARE OD #1-.3578, ID#3-.3585, OD#3-.4365, ID#2-.4375. REMOVED INBD FLAP KINK SEALS. DUE TO CHRONIC VIBRATIONS WITH FLAPS AT FULL AND PLAY FOUND AT THE RT INBD FLAP ACTUATOR LEVER ASSY, ACCOMPLISH THE FOLLOWING: REPLACE RT SPHERICAL BEARING PENDULUM. REF IPC 27-54-46-01A #240. PCN IS 110-1870. ALSO REPLACE THE BOLT ASSY #180. PCN IS 110-3416. REPLACED BOLT ASSY AND PENDULUM BEARING OF THE NR 1 RT FLAP TRACK.