What was found
DURING HEAVY MAINTENANCE: WINGS / CENTER WING BOX / FRONT SPAR VERTICAL STRINGERS & HORIZONTAL FLOOR BEAMS / @ LEVEL OF FR36 & Y-1292, Y-765, Y-254, Y+254, Y+765 & Y+1292 / CRACKS - PERMANENT REPAIR; REFERENCES: /1/ AEROMAN EA 57-0117-25 REV. 0 (COVER + PARTS 1-2) /2/ AIRBUS RDAF 81690844/003/2025 ISSUE A /3/ AIRBUS DOSSIER 81690844 /4/ AIRBUS REPAIR INSTRUCTION R571-12154 ISSUE. C. DESCRIPTION: DURING THE CURRENT (12/2025) M2 CHECK AT SAL FOR A/C N587JB (MSN02177), WHILE ACCOMPLISHING INSPECTIONS PER SB A320-57-1178, AEROMAN REPORTED CRACKS AT VARIOUS HOLE POSITIONS ON THE CENTER WING BOX FRONT SPAR VERTICAL STRINGERS & HORIZONTAL BEAMS AT LEVEL OF FR36 & Y-1292, Y-765, Y-254, Y+254 & Y+765. SEE REF /1/ AEROMAN EA FOR DETAILS. THE DAMAGES WERE EVALUATED AGAINST A320 SRM 57-11-18 & 57-11-14 AND NO REPAIRS WERE FOUND FOR THE SUBJECT DAMAGE. AEROMAN HAD ACCOMPLISHED REAMING OF THE CRACKED HOLES ALONG WITH NDT INSPECTIONS PERFORMED YIELDING CRACK-FREE CONDITIONS. AIRBUS WAS CONTACTED FOR REPAIR INSTRUCTIONS AND PROVIDED INSTRUCTIONS VIA REF /3/ DOSSIER TO ACCOMPLISH REPAIR IAW REF /4/ RI WHICH CONSISTED OF END-OF-BEAM REPLACEMENT AND APPLICATION OF A BEAM SPLICE REPAIR. THESE INSTRUCTIONS ARE APPROVED BY THE REF /2/ RDAF AS PERMANENT WITH NO POST REPAIR INSPECTIONS REQUIRED. THIS EC A25-1157-01 ACCOMPLISHES THE PERMANENT REPAIR PER THE REF /1/ EA AND COMPLIES WITH THE REF /2/ RDAF WITHOUT DEVIATION. NOTE: MSB A320-57-1228 IS NO LONGER APPLICABLE AT THE REPAIRED LOCATIONS (Y-1292, Y-765, Y-254, Y+254 & Y+765). SUBSTANTIATION: THIS PERMANENT, CATEGORY A, REPAIR IS APPROVED BY REF /2/ RDAF AND IS CLASSIFIED AS MAJOR. ***REV 01*** /5/ AEROMAN EA 57-0117-25 REV. 01. EC REVISED TO ATTACHED REVISED EA WITH CORRECTED DAMAGE LOCATIONS. ***REV 02*** /6/ AEROMAN EA 57-0117-25 COVER REV. 02. THIS EC IS BEING REVISED TO UPDATE THE EC/TC TITLE TO CLEARLY DEFINE ALL DISCREPANT POSITIONS AS CALLED OUT PER REF /6/ AEM EA. AS PER THE PREVIOUS REV. 01 OF THIS EC, "Y+1292" WAS ADDED TO THE LIST OF DISCREPANT MEMBERS BUT SINCE THE EC/TC TITLE WAS NOT UPDATED TO ALIGN WITH THE REF /6/ AEM EA, AEROMAN HAD REACHED OUT REQUESTING ANOTHER EC REVISION. NO OTHER CHANGES WILL BE MADE TO THIS REVISION.