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FAA Certification & Aerospace Engineering Services
Propulsion
Certification
From Every Angle
Prime Propulsion delivers DER-led FAA certification consulting across the full scope of propulsion engineering — commercial manufacturing, aircraft modification, engine test, and defense programs. One firm. One specialty. Complete certification authority.
Pratt & Whitney · FAA · U.S. Air Force · Three-perspective expertise
Active DER · Parts 23, 25 & 33 delegations · 30+ approvals per year
Commercial & defense · ACAT 1D program experience
30+
FAA Approvals Per Year
Commercial & Defense
3
FAA DER Delegation
Parts 23 · 25 · 33
5
Core Service Areas
PMA · STC · Defense · Test Cell · Repair
100%
DER-Led Engagements
No Handoff Queues
Our Services
FAA Certification
& Engineering Services
Every service is led by our in-house DER. You get direct access to the engineer whose name is on the approval — not a project manager who coordinates with one.
DER Authority
In-House DER
Delegations
Our Designated Engineering Representative holds active FAA delegations in Parts 23, 25, and 33 — covering the full range of fixed-wing aircraft and propulsion certification. Every project includes the DER engineering approval that closes the loop with the FAA. No external coordination. No handoff delays.
The Certification Letter of Authorization (CLOA) documents the specific scope of our DER's authority under each Part. These are available for download:
14 CFR Part 23
Normal Category Airplanes
Airworthiness standards for normal category aircraft. Primary application: fuel system modifications, engine installations, and powerplant system integration on piston and turboprop platforms.
14 CFR Part 25
Transport Category Airplanes
Airworthiness standards for transport category aircraft. Primary application: fuel system design and modifications on commercial transport platforms. Highest regulatory standard for fixed-wing aircraft.
14 CFR Part 33
Aircraft Engines
Airworthiness standards for aircraft engines — our primary specialty. Covers turbine engine design, testing, and modification. Applied in conjunction with AC 33-8 and related guidance for PMA, STC, and repair specification programs.
Who We Work With
Built for Manufacturers
Who Move Fast
Prime Propulsion is sized for organizations that need senior DER attention and direct access — without the overhead and handoff queues of a large certification firm.
Aerospace OEMs & Tier 2/3 Suppliers
Small to mid-size manufacturers developing new parts or modifications who need in-house DER capability without the cost of building it internally. Direct access to the DER, not a project manager.
MRO Operators
Maintenance facilities with proven proprietary repair processes looking to convert them into FAA-approved PMA products — or seeking DER approval support for repair specification programs.
Defense Contractors & Program Offices
Primes, Tier 1/2 defense suppliers, and program offices requiring propulsion engineering support on dual-use systems or defense acquisition programs — backed by ACAT 1D government experience.
Aftermarket Parts Manufacturers
Companies entering the aviation aftermarket for the first time, or expanding their PMA portfolio. We handle the entire certification path — from compliance plan through FAA approval.
International Manufacturers
Non-U.S. aerospace manufacturers seeking FAA certification for U.S. market access — whether for commercial PMA parts, STC modifications, or engine components on dual-use platforms.
Engine Overhaul Facilities
Turbine engine overhaul shops requiring test cell correlation documentation, repair specification development, or DER support for component approvals under Part 33.
Get Started
Not Sure Which
Service You
Need?
Start with a free 30-minute consultation. Tell us what you're trying to achieve — a part you want approved, a modification you're developing, a defense program you're supporting — and we'll identify the right path and give you a clear scope before you commit to anything.
CALL DIRECT
(404) 918-1584
EMAIL
info@primepropulsion.com
OFFICE
Fort Walton Beach, FL
SERVICE AREA
U.S. National . International
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