What was found
DURING HEAVY MAINTENANCE: FUSELAGE / SB 53-1372 / LH CENTER FUSELAGE / FR35 STGR30 / MULTIPLE HOLES -CRACK & ELONGATION - TEMPORARY REPAIR; REFERENCES: /1/ AAR-LCQ FINAL REO-L25785 REV. IR /2/ AIRBUS DOSSIER 81750093 /3/ AIRBUS RDAF 81750093/003/2026 ISSUE B /4/ AIRBUS SERVICE BULLETIN (SB) A320-53-1372 /5/ MX-244. DESCRIPTION: DURING THE CURRENT C9 CHECK AT LCQ FOR A/C N524JB (MSN 01528), WHILE ACCOMPLISHING REF /4/ SB 53-1372 REV. 02, AAR NOTED CRACK INDICATIONS IN FASTENER HOLE #1 (AFT SKIN LAYER) AND HOLE #2 (FWD SKIN + AFT SKIN LAYERS) AT THE LH FR35 STGR30L SIDE SHELL AREA. DURING FASTENER REMOVAL, LAYER SEPARATION AND ADDITIONAL INSPECTIONS, AN ADDITIONAL QTY (16EA) FASTENER HOLES (SHOWN IN REO FIGURE 1) WERE FOUND ELONGATED. SEE REF /1/ FINAL REO AND REFER TO REO FIGURES 1-14 FOR DISCREPANT HOLE LOCATIONS, DIMENSIONS AND REPAIR DETAILS. AAR HAD ACCOMPLISHED PRELIMINARY DAMAGE REMOVAL AND NDT INSPECTIONS AND REACHED OUT TO AIRBUS VIA REF /2/ DOSSIER FOR FURTHER INSTRUCTIONS. AIRBUS REVERTED WITH REPAIR INSTRUCTIONS CONSISTING OF COLD EXPANSION OF HOLES, ROTO PROBE, WET INSTALL, MAINTAIN EDGE AND PITCH DISTANCE AS PER SRM. SEE REF /1/ FINAL REO FOR MORE DETAILS. THIS EC A26-287-01 ACCOMPLISHES THE TEMPORARY REPAIR PER THE REF /1/ FINAL REO AND COMPLIES WITH THE REF /3/ RDAF. EC A26-287-02 IS FOR THE PENDING 6 MONTHS DTA (PENDING OEM) PER REF /3/ AIRBUS RDAF. SUBSTANTIATION: THIS TEMPORARY REPAIR IS APPROVED PER REF /3/ RDAF AND IS CLASSIFIED AS MAJOR. (E/C: A26-287-01)