What was found
DURING C-SCAN INSPECTION, CRACK WAS FOUND ON R/H HORIZONTAL, 50" AT 24" TO 24.5" AFT OF FROT SPAR ON I/B SIDE OF RIB AT STA-138.7 0. VERIFIED BY HFEC. REF TO PEMCO NR 2695N442 REPAIRED LOWER SKIN ON R/H HORIZONTAL .50 AT 24" TO 24.5'' AFT OF FRONT SPAR ON I/B SIDE OF RIB AT STA-138.7 IAW B737-800 SRM 55-10-01 REPAIR II STEP 4 TABLE 204. ADD EMP:V915691 REQUIRED INSP THERSHOLD AT 56,000 TOT FLIGHT CYLCES,DVI INSP AT 9000 FLIGHT CYCLES AND EXTERNAL LOW FREQ EDDY CURRENT INSP AT 90 00 FLIGHT CYCLES. REPAIRED BY V 915691 AND V 722399 INSP BY Q 886, Q817. PLACED ON DIP FOR REQUIRED INSP THERSHOLD AT 56,000 TOTAL FLIGHT CYLCES,DVI INSP AT 9,000 FLIGHT CYCLES AND EXTERNAL LOW FREQ EDDY CURRENT INSP AT 9,000 FLIGHT CYCLES. TOMC-APPROVAL FROM SC1ELBYC COMMENT QC QC REVIEW RECORDS )