What was found
RT HORIZ. LWR SKIN HAS A CRACK AT STA 147, 9 IN. AFT OF FRONT SPAR. GROUNDED - YES. REPAIRED CRACK ON RT HORIZ. LOWER SKIN AT STA 147 9" AFT OF FRONT SPARIAW SRM 55 10 01 2R 11, PG 3 STEP 4 THIS IS A CAT. B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLT. CYCLES WITH AN INSPECTION INTERVAL OF 9,000 FLT. CYCLES, A/C TOTAL FLT. CYCLES AT TIME OF REPAIR IS 11,695 PER SRM 55 10 01 2R 11, PG 7 STEP 5.