What was found
HEAVY CHECK COE/MAJOR REPAIR: FRETTING DAMAGE FROM RT WING FRONT SPAR LOWER EXTRUSION AT RIB 19. REPAIR PER CETS-1693/17...11374 DATED 5/9/2017.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
HEAVY CHECK COE/MAJOR REPAIR: FRETTING DAMAGE FROM RT WING FRONT SPAR LOWER EXTRUSION AT RIB 19. REPAIR PER CETS-1693/17...11374 DATED 5/9/2017.