What was found
FS 349.00 SKIN IS CORRODED ON BELLY SIDE FWD OF AVIONICS DOOR CUTOUT. REMOVED FRAME AND FLOOR SUPPORT AT F.S. 333 IAW SRM 51-42-06 AND 51-42-21. INSTALLED NEW SERVICEABLE FRAME AT FS 333 BETWEEN STR 23L AND 23R. REINSTALLED AVIONICS BAY FLOOR SUPPORT IAW SRM 51-42-06 AND 51-42-21. REQUIRES PAINT AND CORROSION INHIBITING COMPOUND. PAINT AND CORROSION INHIBITING COMPOUND APPLIED TO AREA COMMON TO FRAME 333 IAW SRM 51-21-11 AND SRM 51-21-16. PRESSURIZATION CHECK DUE. LEAK CHECK GOOD IAW AMM 21-23-00-863-801