What was found
DURING HEAVY MAINTENANCE: CRACK INDICATION ON FRAME 16 LH SIDE, DOOR STOP #7 , HOLE H3. CRACK POSITION IS: 6 OCLOCK , DEPTH IS 0.171 INCHES APPROX; REF AEROMAN WO:2024 38/1 WCC:2024-332727.EVALUATED CRACK INDICATION ON FRAME 16 LH SIDE, DOOR STOP #7 , HOLE H3. CRACK POSITION IS: 6 OCLOCK THE SKINS LAYER WERE SEPARATED AND PERFORMED ROTOTEST INSPECTION AT HOLE H3 (LOWER INBOARD) AT LEVEL OF DOOR STOP FITTING 1, FRAME 16 LH SIDE IAW NTM 51-10-01. CRACK INDICATION FOUND ONLY ON INTERCOSTAL LAYER. REMOVED AND REPLACED INTERCOSTAL FITTING ON FRAME 16LH SIDE AT LEVEL DOOR STOP #7 IAW DWG D53112300 ANDA320 SRM 51-42-11. REPAIR IS CATEGORY A IAW A320 SRM 53-11-12-300-010 FIG 004 (SHEET 001) . DONE BY AE TECH:8672118 AE RII QC#284.