What was found
EA 5510-01843 R/H STAB RIB AT 92.7 STIFFENER 4 CRACKED AT VERTIC AL WEB AND CRACK AT VERTICAL STIFFENER. REF TO PEMCO NR 2675N940 REPAIR R/H STAB RIB @ 92.7 VERTICAL STIFFENER #4 & ERTICAL WEB IAW B737-800 SRM55-10-09 REPAIR 4 TABLE 201 FIG 202B & REPAIR LOWER SKIN IAW B737-800 SRM55-10-01 REPAIR 11 TBL202,FIG 204B IAW TABLE 204, REPAIR 11 REQUIRES THREASHOLD INSPECTION @ 56000 TOTAL FLIGHT CYCLES DV INSP@ 9000FC AND EXTERNAL LOW FREQUENCY EDDU CURRENT @ 9000FC APPROVED FOR A DVI AND LFEC INSPECTIONS WITH A THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES AND REPEAT EVERY 9,000 FLIGHT CYCLES AFTER IN REFERENCE WITH SRM 55-10-01 REPAIR 11 PAGE 223 FIGURE 206, TABLE 204.