What was found
Top Side of W.W. (Nose) between STA 260-280 Intercostal at LBL 20 cracked. CORRECTIVE ACTION: Removed and Replaced per ECRA 481-53-170-2, B747 51-30-02, Pgs 1-3, & 21-32. Installed per B747 SRM 51-30-02 5-9 & 38-60, plus 51-10-06, Pgs 1-30