What was found
(CAN) DURING ABC STRUCTURAL INSPECTION MAINTENANCE NOTICED A 0.500" CRACK FOUND ON LT FRAME BS 288 AT STRINGER 11L LOCATION. REFERENCE "A" CHECK ITEM #37, FIGURE 27. "A HIGH FREQUENCY CURRENT SURFACE SCAN (EDDY CURRENT) WAS CARRIED OUT ON REPAIR OF STATION 288 FRAME AT WING BOX ATTACHMENT RIB AFTER DAMAGE WAS CUT OUT. NO FURTHER DEFECTS FOUND." REPAIRS CARRIED OUT IAW CAS ENGINEERING B1900-53-002. TUB FITTING INSTALLED WET WITH PS870 USING ALL LOCK FASTENER PINS AND COLLARS. ALL EFFECTED AREA PREPED/EPOXY PRIMED IAW AMM 20-08-00.