What was found
CORROSION WAS FOUND ON THE EXTERNAL FUSELAGE SKIN BS 794 - 807 AND 747-767, BETWEEN STRINGERS 27R - 27L. THE SKIN WAS REPAIRED IAW ER/A:565484-14, REV:ORIGINAL, AND ETI-37-18-337 REV:3, ER/A:565488-14, REV ORIGINAL, AND ETI-37-18-338, REV 7.