What was found
ON FINAL APPROACH, AIRCRAFT EXPERIENCED A SPLIT FLAP CONDITION, CAUSED BY BROKEN CABLE ASSEMBLY. FLAP ACTUATOR INBOARD (PN 14601007). CABLE HAD BROKEN ON RIGHT SIDE, 1 INCH FROM CABLE END, AT BELLCRANK ENTRY POINT. INSPECTION OF LEFT SIDE FLAP CABLE ASSEMBLY WITH A MIRROR, REVEALED NO NOTICEABLE DAMAGE. ALL CABLES FOR RIGHT AND LEFT FLAP SYSTEM WERE REMOVED AND INSPECTED. LEFT CABLE ASSEMBLY. FLAP ACTUATOR INBOARD, WAS FRAYED AT SAME CONTACT POINT AS RIGHT, (NOT DETECTED BY MIRROR INSPECTION). DUE TO AREA OF BREAKAGE, HAVING LIMITED POSSIBLY FOR VISUAL INSPECTION, RECOMMEND SET TIME PERIOD FOR CABLES TO BE REMOVED FOR INSPECTION OR TIME IN SERVICE REQUIREMENTS SET FOR REMOVAL.