As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION FOUND A 1.25 INCH CRACK IN FORWARD VENT BOX FORWARD MOUNT TANG WHERE IT MOUNTS TO TOP OF RIB AT W.S. 656.50, LT WING FUEL TANK ACCESS PLATE CUT OUT NR 7217. ANGLES, FILLERS AND COVER PLATES WERE FABRICATED AND INSTALLED IAW BOEING SERVICE BULLETIN 727-57A159.