FAA Advisory Circular 43.13-1B
Acceptable Methods, Techniques, and Practices
Aircraft Inspection and Repair
AC 43.13-1B | 6. Corrosion, Inspection, and Protection | 13. Corrosion Proofing of Land Planes Converted to Sea Planes | 6-208. Recommended Precautions
AC 43.13-1B
f. Place bags of potassium or sodium di
chromate in the bottom of floats and boat hulls
to inhibit corrosion.
g. Prevent the entry of water by sealing,
as completely as possible, all openings in
wings, fuselage, control-surface members,
openings for control cables, tail-wheel wells,
etc.
6-209.6-219. [RESERVED.]
9/8/98
Page 6-42
Par 6-208