What was found
DURING HEAVY MAINTENANCE AT LCQ WHILE ACCOMPLISHING REF /3/ SB, CRACK DAMAGE WAS FOUND ON THE NR 4 HOLE AT FR35/FR36 OF THE CENTER WING BOX PRESSURE PANEL - LT. PROVIDED REF /2/ TO EXTEND THE PRESSURE DECK MEMBRANE CUT OUT TOWARDS OUTBOARD TO INCLUDE AFFECTED HOLE, ACCOMPLISH HFEC AND CONTINUE WITH REPAIR AS PER REF. /3/ SB WITH ADAPTED DOUBLER AND FILLER DIMENSIONS. ISSUED REF. /1/ REO TO ACCOMPLISH THE WORK. THIS EC A18-896-01 IS ISSUED TO INCORPORATES REF /1/ REO WITHOUT DEVIATION; REF /2/ RDAS APPROVES THIS REPAIR. THIS IS CLASSIFIED AS A CATEGORY "A" MAJOR REPAIR.