What was found
KEEL BEAM, SEC 44, AFT STA 900, FITTING BEHIND 139AL PANEL HAS EVIDEN OF CORROSION AROUND NUTPLATE HOLE. DOT 23-023.REMOVED CORROSION ON THE CHANNEL OF KEEL BEAM, AFT STA 900, FITTING BEHIND 139AL PANEL, AROUND NUTPLATE HOLE IAW B757 SRM 51-10-02.REMOVED CHANNEL OF KEEL BEAM, AFT STA 900, FITTING BEHIND 139AL PANEL IAW B757 SRM 51-40-02-0G-0.LOCATED AND DRILLED NEW CHANNEL ATKEEL BEAM SECC 44 AFT STA 900, IAW B757-200PF SRM 51-40-05-0G-0.TREATED AND PRIMED NEW CHANNEL IAW B757-200 SRM 51-20-01.INSTALLED NEW PART AT KEEL BEAM, SECC 44 AFT STA 900 IAW B757-200 SRM 51-40-02-0G