What was found
DURING THE ACCOMPLISHMENT OF 737-AE-53-837_P1-OP-UP NAC TASK CARD, IT WAS FOUND AT STA. 727F, THE FLOOR BEAM WITH SEVERAL CORROSION SPOTS BETWEEN LBL 60 AND RBL 60, SPECIFICALLY ON UPPER CHORD, UPPER AND LOWER SURFACES. SINCE THE MENTIONED FLOOR BEAM IS AFFECTED BY CARGO CONVERSION AS SHOWN IN AEI DWG AE8811. AEI WAS CONTACTED ASKING FOR REPAIR INSTRUCTIONS AND FINAL APPROVAL. THE CONDITION REPORTED WAS REPAIRED IAW AEI EO24870 (NAC EO 737-53-0402 REV. IR DTD 08/04/2025) AND APPROVED UNDER 8110-3.