What was found
DURING A C-CHECK INSPECTION, THE FOLLOWING WAS FOUND; LT MAIN LANDING GEAR W/W STATION 920, KEELBEAM LT TEE EXTRUSION WITH 3 INCH CRACK. REPAIRED KEEL WEB STIFFENER AT STA 920 IN ACCORDANCE WITH BOEING MESSAGE INW-SCL-04-00005H, DATED 02 MARCH 04, DC8 SRM 51-2-1, TR 51-130. ISSUED FAA FORM 8110-3 APPROVING THIS REPAIR. ALSO N/R 1437; REPAIRED FUSELAGE KEEL LOWER TEE CAPS IN ACCORDANCE WITH BOEING MESSAGE INW-SCL-04-00005H, DATED 02-MAR-04, DRWAING NUMBER 5754125 & ROD SKETCH 04-02-19-001. ISSUED FAA FORM 8110-3 APPROVING THIS REPAIR. PERFORMED CLOSE VISUAL INSPECTION FOR CRACK PROPAGATION AT "C" CHECK INTERVALS.