What was found
DURING ROUTINE MAINTENANCE, CORROSION WAS DISCOVERED ON FORWARD CARGO O2 BOX CUTOUT AT FRAME 23+6, STR 20R. R & R REPLACED STRINGER, PN 170-67342-001.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING ROUTINE MAINTENANCE, CORROSION WAS DISCOVERED ON FORWARD CARGO O2 BOX CUTOUT AT FRAME 23+6, STR 20R. R & R REPLACED STRINGER, PN 170-67342-001.