What was found
IAW EA 5510-01843 CRACK INDICATION AT HORIZONTAL STABILIZER STATION 138.70, TWO PLACES, 10 & 18 INCHES FROM AFT SPAR, INBOARD ROW SIDES OF RIVETS. HORIZONTAL STABILIZER STATION 138.70, CRACK HAS BEEN REPAIRED IAW SRM 55-1 0-01 REPAIR 11. SEE TASK & WIPS PERFORMED IN FLEET CYCLE. DIP ISSUED TO ACCOMPLISH A DETAILED VISUAL & EXTERNAL INSPECTION EVERY 9,000 FLIGHT CYCLES WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL COMPONENT FLIGHT CYCLES IAW SRM 55-10-01 REPAIR 11 PG 218.