What was found
DURING KEEL BEAM INSPECTION PER ATI TASK S53-052-02, EXFOLIATION CORROSION IDENTIFIED AT PANEL 149BL, SEC 45, FS 999. AIRCRAFT GROUNDED FOR REPAIR. DAMAGE MEASURED AT 1.5 X 9/16. TOTAL BLEND OUT MEASURED 2.375 (L) X 1.125 (W) AND DEEPEST BLEND POINT MEASURED 0.0625. (D). BLEND OUT/INTERIM REAIR ACCOMPLISHED IAW B767-200 SRMP 53-50-12 AND ATI ENGINEERING ORDER 53-767-6968. PERMANENT REPAIR TO INCLUDE SHOT PEEN REWORK TO AFFECTED KEEL BEEM NO LATER THAN NEXT SCHEDULED HEAVY MAINTENANCE CHECK SCHEDULED MARCH 2020. AIRCRAFT RELEASED TO SERVICE