When adapting the typical repairs shown in this manual to suit actual conditions, it may be necessary
to use different fasteners than those originally used. This may be due to non-availability of a particular
fastener, restricted access, or other difficulties. When replacing rivets, it is desirable to use rivets
identical to the type of rivet removed. Countersunk head rivets are to be replaced by rivets of the
same type and degree of countersink. When rivet holes become enlarged, deformed, or otherwise
damaged, several options are available.