What was found
MHV - ULTRASONIC INPECTION SHOWS AN INDICATION OF A DEFECT ON THE INBOARD SIDE OF THE INBOARD VETICAL BOLT ON THE LEFT REAR SPAR TO TRAPEZOIDAL FITTING. REPLACED TRAP FITTING PER S/B NR 57-129 JACKED AND SHORED A/C. REMOVED AND REPLACED AILERON CABLE MIXER FITTINGS RIGGED AILERON BUS CABLE AILERON LATERIAL CONTROL MIXER AND TRIM TAB PER MM DC9 27-10-0 PAGE 17, 9, 10, 12, 13. (M)