What was found
FLOOR CENTER AISLE MAKES POPPING NOISE FROM ROW 15 TO 17.REPETITIVE INSPECTION ACTION: PERFORM GENERAL VISUAL EXAMINATION OF THE PANET TO ENSURE PANEL IS FREE OF DEFECTS (CRACKS;DENTS;PUNCTURES ETC) IF DEFECTS ARE NOTED CONTACT SERVICE ENGINEERING. INSPECTION THRESHOLD 100 FLIGHT CYCLES; REINSPECTION INTERVAL 100 FLIGHT CYCLES. PERMANENT REPAIR LIMIT ACTION REQUIRED: PERFORM PERMANENT REPAIR BY REPLACING PANEL OR RECTIFY PER AMM 53-21-00/401. PERMANENT REPAIR TIME LIMIT: 250 FLIGHT CYCLES PER EA 1-A53-31403 & REPAIR-53EA-04959PERMANENT ACTION REQUIRED / REMOVE AND INSTALL NEW FLOOR PANEL IAW AMM 53-21-00