Flap drive pin install 13.

This is the lineup of drills used:
** 1/8" centerdrill bit, (drilled perhaps 1/4")
** 3/32" medium length drill bit
** 1/4" medium length drill bit
** 3/8" fiberglass drill bit, (drilled perhaps 1/8" to prevent the final 10.2mm drill bit from tearing the outside plies of fiberglass).
** 10.2mm drill bit
Y10-12-04