First and foremost, you need a quality manual for a PMA certification. The link below is the quality manual for Sky Workhorse LLC
PMA Checklist
Data Package
Drawings 🛫
Compliance Checklist
Test Report and Computations 🛫
Reverse Engineering Report 🛫
Safety Assessment
Manufacturing Inspection and Test Procedures 🛫
Manufacturing Test Results 🛫
Airworthiness Limitations
Life Assessment
Airworthiness Directives or service difficulties
Continued Operational Safety Plan
Maintenance Instructions and Instructions for Continued Airworthiness
Article Marking 🛫
Test Plans with a draft conformity request when warranted
Evidence of installation eligibility 🛫
DER 8110-3 forms
A separate statement of compliance upon completion of regulatory showings
First Article 🛫
List of proposed designees and ACO concurrences
Unnumbered draft PMA Supplement (MS Word format) 🛫