What was found
DURING A MAINTENANCE VISIT FOUND CRACK, AFT PRESSURE BULKHEAD AT STA 1766, I/B AREA BETWEEN LONGERONS 10 RIGHT AND LONGERON 11 RIGHT, A 2.75 CRACK BETWEEN BL 24.750T LEFT AND BL 27.250 LEFT. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8. REPAIRED CRACK IAW DC8 SRM 53-2-5 AND IAW FAA APPROVED TENNESSEE TECHNICAL SERVICES DER ENGINEERING SKETCH NR EO-99-109 WITH APPROVED 8110-3 DATED 08-05-99.