What was found
IAH - DURING A 4YR 12,000 CYCLE INSPECTION SSI 57-52-04 (PART 4), ULTRASONIC INSPECTION OF FLAP. THE RT INBOARD FLAP, ADJACENT TO RIB NR 5 FLAP ATTACH FITTING, (FWD FITTING INBD SIDE), FOUND A 1.5 INCH BY 1.5 INCH AREA OF DELAMINATION. MAINTENANCE REMOVED AND REPLACED FLAP (P/N 5751000502100) IAW ATR 42MM 57-52-00, OPERATIONAL CHECKS GOOD IAW ATR 42MM JIC 27-51-00 OPT 10000-001. (Z)