§ 21.319. Design changes.
101 words·~1 min read·
/us/cfr/t14/s§ 21.319·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)Classification of design changes.
(1)A “minor change” to the design of an article produced under a PMA is one that has no appreciable effect on the approval basis.
(2)A “major change” to the design of an article produced under a PMA is any change that is not minor.
(b)Approval of design changes.
(1)Minor changes to the basic design of a PMA may be approved using a method acceptable to the FAA.
(2)The PMA holder must obtain FAA approval of any major change before including it in the design of an article produced under a PMA.