What was found
INSPECTION FOUND VISUALLY, A CRACK AT BS 525 IN STRINGER 27L DURING ROUTINE INSPECTION. THE STRINGER CRACK IS COMMON TO AN EXTERNAL REPAIR DOUBLER BETWEEN STRINGERS 26L AND 28L THAT HAS A REPETITIVE INSPECTION REQUIREMENT ACCOMPLISHED BY EO 4753A832. SEE FIG 1 FOR VIEWS OF DAMAGE. THIS WAS DOCUMENTED ON NRC FVY512036. (THE DAMAGE WAS REMOVED BY CUTTING THE STRINGER AT STA 550 AND REPLACING THE CRACKED SECTION WITH A NEW STRINGER SECTION FROM PRODUCTION SPLICE AT STA 520 TO REPAIR SPLICE AT STA 550. THE STRINGER AT STA 550 WAS SPLICED IAW 747-0/200/300, SRM 53-10-03, FIG 1 DETAILS I & III. SEE FIG 2 FOR DETAILS OF THE REPAIR.)