What was found
CORROSION ON FLOOR STRUCTURE AT L4 DOOR BETWEEN BS 1640 TO 1681. FABRICATED AND INSTALLED 2 EACH INTERCOSTAL WEBS 21.75 X 3.5 X 1.8 INCHES FROM 7075-T6 .071" IAW B757 SRM 51-30-01, 51-40-05 AND 51-40-02.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CORROSION ON FLOOR STRUCTURE AT L4 DOOR BETWEEN BS 1640 TO 1681. FABRICATED AND INSTALLED 2 EACH INTERCOSTAL WEBS 21.75 X 3.5 X 1.8 INCHES FROM 7075-T6 .071" IAW B757 SRM 51-30-01, 51-40-05 AND 51-40-02.