What was found
(CAN) FS581 FRAME CORROSION BLENDS BTW STR17L - STR18L ORIGINAL MAT. THK. OF THIS FRAME IS .063 LOWEST REM. MAT. THK.AT ATTACH FLANGE IS .051 LOWEST REM. MAT. THK.AT WEB FLANGE IS .061 (TC# 20190429007)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) FS581 FRAME CORROSION BLENDS BTW STR17L - STR18L ORIGINAL MAT. THK. OF THIS FRAME IS .063 LOWEST REM. MAT. THK.AT ATTACH FLANGE IS .051 LOWEST REM. MAT. THK.AT WEB FLANGE IS .061 (TC# 20190429007)