FAA - D.E.R. Systemic Support System
a Pullins Engineering Company
The team members associated with Pullins Engineering specialize in the following FAA-DER disciplines:
-Major Repairs, Major Alterations, STC's, PMA's, TSOA's, 14 CFR for Part: 23 / 25 / 27 / 29
We distribute our talents in such defined areas for the following responsibilities:
-Consultation, Design, Documentation, Integration, Engineering, Manufacturing, Marketing
We also provide complete and widespread customer service packages see below.
Typical Project -
For example, we could participate in some or all of the following?
1. Drawing sets with a GD&T structure applied for mfg.
2. Rapid Prototyping for fit/checking to aircraft
3. Marketing the product to potential distributors
Part 23 -
Airworthiness Standards: Normal, Utility, Aerobatic and Commuter Airplanes.
Our approval authority is granted by the United States Federal Aviation Administration (FAA) to manufacturer aircraft parts. A brief description of FAA Part 23 is as follows...:
Part 23 contains airworthiness standards for airplanes in the normal, utility, aerobatic, and commuter categories. It dictates the standards required for issuance and change of type certificates for airplanes in these categories. E.g., the maximum takeoff weight of an airplane in the normal, utility or aerobatic category cannot exceed 12,500 lb, while in the commuter category it cannot exceed 19,000 lb.
This part has a large number of regulations to ensure airworthiness in areas such as structural loads, airframe, performance, stability, controllability, and safety mechanisms, how the seats must be constructed, oxygen and air pressurization systems, fire prevention, escape hatches, flight management procedures, flight control communications, emergency landing procedures, and other limitations, as well as testing of all the systems of the aircraft. It also determines special aspects of aircraft performance such as stall speed (e.g., for single engine airplanes - not more than 61 knots), rate of climb (not less than 300 ft/min), take-off speed (not less than 1.2 x VS1), and weight of each pilot and passenger (170 lb for airplanes in the normal and commuter categories, and 190 lb for airplanes in the acrobatic and utility categories).
For example?: The Cessna 150, 170, 177, 180, 182, 185, 195, Cirrus SR20, Diamond DA-40 and Piper Pacer, Comanche, Apache, Seneca, Pawnee, Aztec, Cherokee, Warrior and Arrow are all well-known airplane types that were certificated to FAR Part 23.
General Description of the Approval Process -
In Short, PMA-holding engineers like us are permitted to design and make replacement parts for aircraft, even though they may not have been the original manufacturer of the aircraft.
Application for a PMA is usually a two-step process.
1st, the manufacturer-applicant must demonstrate to the FAA that it has a safe design for a part. The design must meet the requirements of the FAA's safety regulations and standards.
2nd, the application process is to seek FAA approval of the manufacturing quality assurance system (known as production approval). Production approval will be granted when the FAA is satisfied.