What was found
DURING CHECK, A DENT WAS FOUND COMMON TO THE S4R LAP SPLICE AT BS 564. THE DENTED AREA OF THE LAP WAS TRIMMED OUT AND REPAIRED IAW SECT I OF ER/A 13-488107-14. THE REPAIR IAW SECTION I IS APPROVED FOR 42,000 TOTAL ACFT CYCLES. OBTAIN STAGE 3 DTA APPROVAL OF THE SECTION I REPAIR PRIOR TO 42,000 TOTAL ACFT CYCLES OR REMOVE THE ACFT FROM REVENUE SERVICE ASSOCIATED ER/A 13-488107 ADDED FOR AC 5521, APPROVAL IS TIME LIMITED INSPECTION THRESHOLD IS 44000 TOTAL AIRFRAME.