What was found
RT HORIZONTAL STAB RIB 4 FOUND CRACK AT 'T' SUPPORT ANGLE / REMOVED FWD 'T' SUPPORT ANGLE AT RT HOR STAB INSPAR RIB #4 STA 120.30 AS PER B737-7 SRM 51-40-02.LOCATED AND OPENED NEW FASTENER HOLES AT NEW 'T' SUPPORT ANGLE STA 120.30 INSPAR RIB #4; FWD AREA.. AS PER B737-7 SRM 51-40-05-OG-0;[06] CORRECTION TO STEP 3: TREATED AND PRIMED FASTENER HOLES AS PER B737-7 AMM 51-21-72-370-804; INSTALLED 'T' SUPPORT ANGLE AT INSPAR RIB #4 FWD AREA L/E STA 120.30; R/H HOR STAB AS PER BOEING DRAW. # 182A2401 AND B737-7 SRM 51-40-02-0G-0.