3-39. FUEL TANK AND SIGHT GLASS (cont)
CLEANING, INSPECTION, AND REPAIR
Steam clean exterior of fuel tank (6) and remove dirt and grease.
Purge Interior of fuel tank.
Check that pipes, connections, and vent valves are tight and do not leak.
Repair leaks by welding, sanding and painting as required.
Check that sight glass is not cracked or broken.
Replace damaged parts as required.