What was found
WO 238445 NR 500015 HEAVY CHECK COE/MAJOR REPAIR: UPPER CENTER WING CUTOUT BETWEEN RIBS 1L AND 2L PANEL 521DT FLANGE AND FOIL HAVE FRETTING DAMAGE. CORRECTION ACTION: REPAIR PER SRAS DO/TS...4504/08...4888 ISSUE F.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WO 238445 NR 500015 HEAVY CHECK COE/MAJOR REPAIR: UPPER CENTER WING CUTOUT BETWEEN RIBS 1L AND 2L PANEL 521DT FLANGE AND FOIL HAVE FRETTING DAMAGE. CORRECTION ACTION: REPAIR PER SRAS DO/TS...4504/08...4888 ISSUE F.