What was found
(B737-53-3-0711) MAIN CABIN UNDER FLOORBOARD AT STA 328, APPROX RBL 10 HAS SURFACE CORROSION ON LATERAL I-BEAM TOP SURFACE AS MA RKED. TRANSCRIBED FROM HAECO GSO NRC# 9288423 CORROSION ON LATERAL I-BEAM TOP SURFACE AT STA 328 RBL10 WAS EV DAMAGE IS FOUND TO BE OUT OF LIMITS. DVI FOUND NO FURTHER DAMAGE ALUATED AND BLENDED AS REQ IAW B737-900ER SRM 53-10-51-1A-1 FIG NOTED IAW B737-900ER SRM 51-10-04-0G-0 STEP 2.A. DAMAGED WAS REP 105 DETAIL C. MATERIAL LOSS .015 AFTER DAMAGE REMOVAL. ORIGINAL AIRED AS REQ IAW B737-900ER SRM 53-10-51-2R-8 REPAIR 8 FIG 205 C THICKNESS OF .1250 PER B737-900ER SRM 53-10-51-01-2 TABLE 8. ATEGORY A REPAIR. HAECO GSO MECH V934319 INSP QC V900606