Sec. 25.605 - Fabrication methods.
(a) The methods of fabrication used must
produce a consistently sound structure. If a fabrication process (such as
gluing, spot welding, or heat treating) requires close control to reach
this objective, the process must be performed under an approved process
(b) Each new aircraft fabrication method
must be substantiated by a test program.
[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as
amended by Amdt. 25-46, 43 FR 50595, Oct. 30, 1978]