As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERCOSTAL CORRODED BETWEEN STRINGER26 - 27L BETWEEN BS 501 AND 517. REMOVED AND INSTALLED NEW REPLACEMENT ANGLE FOR INTERCOSTAL ON S27-26L BETWEEN BS 501 - 517 IAW SRM 51-42-06-001-001-A01 AND DWG SH670-33399 REV -B. PERFORMED LEAK CHECK IAW SRM 51-23-03-001-001-A01. LEAK CHECK GOOD WITH NO DEFECTS NOTED. COMPLIED WITH TASK CARD 51-900-1002-SKY.