What was found
DURING "C04" CHECK INSPECTION, FOUND OVERWING TANK REAR SPAR LOWER CHORD REINFORCE ANGLE SURFACE CORROSION AT STA 1376 BETWEEN X=37.5 AND X=-37.5 (LENGTH = 57").
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING "C04" CHECK INSPECTION, FOUND OVERWING TANK REAR SPAR LOWER CHORD REINFORCE ANGLE SURFACE CORROSION AT STA 1376 BETWEEN X=37.5 AND X=-37.5 (LENGTH = 57").