What was found
DURING HEAVY MAINTENANCE, CRACK WAS FOUND AT KEEL BEAM SHEAR PLATE PANEL PER INSPECTIONS CONTAINED ON REF /4/ SB WHICH REQUIRES AIRBUS TO BE CONTACTED IF A CRACK IS FOUND AFTER TI-ANGLE REMOVAL AND INSPECTION OF THE AFFECTED HOLES ON THE FUSELAGE (SEE REF /1/ FOR DETAILS). TI-ANGLES WILL BE REPLACED IN ORDER TO COMPLY WITH REF /4/ SB AND AIRBUS PROVIDED REF /2/ TD FOR PERMANENT REPAIR INSTRUCTIONS. AD REF /5/ REQUIRES OEM CONTACT AND APPROVAL FOR REPAIR INSTRUCTIONS VIA RDAS; AIRBUS APPROVED THIS REPAIR PER REF /3/ RDAS AND IS CLASSIFIED AS MAJOR CATEGORY 'A'. REVISION 01 - UPLOADS UPDATED COPY OF AEROMAN EA 53-0248-20 REV 01 CLASSIFYING THIS REPAIR AS MAJOR.