Re: Amending Test and Computation PMA (Parts Manufacturing Approval)
By amending do you mean a Major or Minor Change? If it is a minor change than the package would be whatever your ACO requires. If it is a major change than you would want the data that would support the delta change.
Per the regs:
? 21.319 Design changes.
(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.
I would also recommend reviewing Order 8120.22 Chapter 4 (this replaces Order 8120.2 refereing in the PMA Order 8110.42C)