What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND HEAVY INTERGRANULAR CORROSION ON LONGERON 31R, FS 1340 TO FS 1360. MAINTENANCE REPAIRED PER UPS E.O. DC8-5310-7520-D.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE IN FOR C-CHECK, MAINTENANCE FOUND HEAVY INTERGRANULAR CORROSION ON LONGERON 31R, FS 1340 TO FS 1360. MAINTENANCE REPAIRED PER UPS E.O. DC8-5310-7520-D.