What was found
DURING ROUTINE CPCP INSPECTION FOUND LEVEL 2 CORROSION, CORROSION ON THE SKIN AFT OF STA 2220 BETWEEN STRINGER 46R-47R AND STRINGER 45R-46R IN AFT CARGO COMPARTMENT. REMOVED CORROSION IAW B747 SRM 51-10-01. SKIN IS OUT OF LIMITS IAW B747 SRM 53-10-01. MATERIAL LOSS BETWEEN S46R AND S47R, .068 INCH IAW B747 SRM 53-30-01 AND 53-30-02. MATERIAL LOSS BETWEEN S45R AND S46R .057 INCH IAW B747 SRM 53-30-01 AND 53-30-02 ID MATERIAL 2024T3 .100 IAW SRM 53-30-03. REPAIRED, CORROSION TASK CARD NUMBER C53-125-01-2. NON-ROUTINE TASK CARD NUMBER B0083-16-N-00808.