What was found
MEC LT TUNNEL, BETWEEN FLOORBEAMS @ STA 246 & 266.5, LBL 50 CRACKED WEB. MEC LT TUNNEL BERWEEN FLOORBEAMS @ STA 246 AND 266 LBL 50 CRACKED WEB PART# 141T5602-6 INSTALLED REF B767 SRM 51-40-02-0G ALSO IAW BOEING DRAWING 141T5602. THIS IS A MAJOR REPAIR.