What was found
AFT CABIN UNDERFLOOR COMPARTMENT, IN WET AREA JUST AFT OF STATION 68 FRAME HAS SURFACE CORROSION GROUNDED - YES. REMOVED AND REPLACED BEAM # D53472197200 AT FRAME STA 68-70 Y765 IAW A319 SRM 51-42-11, 53-41-03-A, DWG 18-D5374-72040 & 51-22-00. REMOVED CORR ORG .150 REMAIN .100 LOSS OF .050. FOUND OUT OF LIMITS IAW A319 SRM 53-41-41.