What was found
MAIN CABIN AFT WET AREA CORROSION AT FLOOR BEAM UPPER SURFACE STA 986.5 LBL 43'<[01] REMOVED CORROSION AT MAIN CABIN AFT WET AREA FLOOR BEAM UPPER SURFACE STA 986.5 LBL 43' REF 53-70-51-1A-1. ACCOMPLISHED INSPECTIONIAW B737 NDT PART 4 51-00-00 PROC. 3. MIN THICKNESS .121';<BR>EQUIP: OLYMPUS 27MG CAL DUE: 4/24 B/C 172139.ORIGINAL THICKNESS: 0.150'; REMAINING MATERIAL 0.121'; MATERIAL LOSS: 0.029'. WORK WILL BE ACCOMPLISHED ON EA M-21-153-00612 WITH CUSTOMER NUMBER TTG8Q00LNQQW;[02] VERIFIED STEP 1