FAA Advisory Circular 43.13-1B
Acceptable Methods, Techniques, and Practices
Aircraft Inspection and Repair
AC 43.13-1B | 6. Corrosion, Inspection, and Protection | 6. Corrosion Removal Procedures | 6-91. Corrosion Control Work Procedures
9/8/98
AC 43.13-1B
h. Protect surrounding areas when
welding, grinding, or drilling, to prevent con
tamination with residue from these operations.
In those areas where protective covering can
not be used, remove the residue by cleaning.
i. Severely corroded screws, bolts, and
washers should be replaced. When a protec
tive coating, such as a cadmium plating on
bolts, or screws, is damaged, immediately ap
ply an appropriate protective finish to prevent
additional corrosion damage.
6-92.6-112. [RESERVED.]
Par 6-91
Page 6-19 (and 6-20)