What was found
SHIP 684 WHILE IN FOR THE 2KU WIFI MODIFICATION AND DURING THE RADOME INSTALLATION PER GOGO DRAWING REV. C AT FS 620 BETWEEN S-3L AND S-4L, MTC FOUND AN EXISTING INSULATION RETAINING STUD HOLE IN THE LOCATION WHERE THE TEE CLIP EXTRUSION IS TO BE INSTALLED TO THE FRAME AND MOUNTED TO THE #3 LH INTERCOSTAL. THE GOGO DRAWING REQUIRES FOUR (QTY 4) 3/16 HOLES TO BE USED FOR ATTACHING THE CLIP TO THE FRAME. CORRECTIVE ACTION: REF ERA 563979-14AD REV A. UPDATED FROM MINOR TO MAJOR (0325598)