As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GROUNDED FOR C-CHECK-24. IN COMPLIANCE OF TASK CARD ATI-20-073-00-01, ALC DOOR HAS LIGHT CORROSION AT INTERIOR PANEL MOUNTING SCREW LOCATIONS. REPLACED SKIN ON ALC DOOR IAW B767 51-40-02 PAR 4 BOEING DWG 140T2640 AND DOC 47404FAB02.