What was found
WO 232458 NR 500009 HEAVY CHECK COE/MAJOR REPAIR: UPPER WING ACCESS DOOR CUTOUT LANDING FOR PANEL 521DT HAS FRETTING. LEVEL 2 CORRECTIVE ACTION: REPAIRED PER SRAS DO/TS-4809/07...4337 ISSUE G, DATED 3/16/2022.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WO 232458 NR 500009 HEAVY CHECK COE/MAJOR REPAIR: UPPER WING ACCESS DOOR CUTOUT LANDING FOR PANEL 521DT HAS FRETTING. LEVEL 2 CORRECTIVE ACTION: REPAIRED PER SRAS DO/TS-4809/07...4337 ISSUE G, DATED 3/16/2022.