What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK INDICATION FOUND ON OPEN HOLE ON CENTER WING BOX FR36 FRONT SPAR VERTICAL STRINGER ZONE 2, CRACK DIRECTION AT 12 O CLOCK, D= 0.110 INCH. MAINTENANCE REPLACED STIFFENER LOCATED ON FR1 (Z-169) FWD FACE FWD PRESSURE BULKHEAD IAW A319 SRM 51-42-11-801, SRM 51-72-11-911-001 AND DWG D53133319, D53114044.