What was found
LEFT HORIZONTAL STAB LOWER SKIN IS CRACKED @ STA 147.90. (MARKED). GROUNDED - YES. REMOVED EXISTING REPAIR DOUBLER. REPAIRED LH HORIZONTAL STAB LWR SKIN WITH NEW REPAIR DOUBLER IAW B737-800 SRM 55-10-01-2R-11, REPAIR 11. THIS REPAIR 11 IS A CATEGORY B REPAIR & REQURIES INSPECTIONS AS FOLLOW, INSPECTION THRESHOLD 56,000 TOTAL FLIGHT CYCLES, REPEAT INSPECTION DVI INTERVALS OF 9000 FLIGHT CYCLES & EXTERNAL LOW FREQUENCY EDDY CURRENT INTERVAL OF 9000 FLIGHT CYCLES.