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  With over twenty-five years of Engineering Experience, APECS provides our customers with a wide variety of Engineering Support Services including; Repair Development, FAA-DER Services, FAA RS-DER Services, FAA-PMA Services, FAA-STC Services, Engineering Management Services, or any of a number of other Engineering Support Services.

Our Services are a tried and true way of Improving System Reliability and Developing Internal Cost Savings for any MRO.


APECS Engineers have familiarity with both the Operation and Performance characteristics of most Aircraft Systems.  As such we can devise and design Intelligent Repairs that both suit the needs of the client as well as providing them with Safe, Quality Alternatives to OEM Repairs, or as a way to Reclaim parts or components thought to be Beyond Economical Repair (BER) or Unrecoverable.

Some Components/Systems with Repairs Developed by APECS' Engineers include, but are not limited to:

>  Hydraulic System and Component Repairs such as Pump Mechanisms and Actuators
>  Pneumatic System and Component Repairs such as Valves, Air Starters and Actuators
>  Electro-Mechanical System and Component Repairs such as Control Mechanisms, etc.
>  Powerplant System and Component Repairs such as Ducting, Fuel/Oil Coolers, etc.
>  Propellers such as blade hubs, spinners, housings, and non-dynamic mechanical components
>  Oil System and Component Repairs such as Housings, Gears and etc.
>  Thrust Reverser System and Component Repairs including Cowlings, Actuators and Ducts
>  Landing Gear Repairs including Actuators, Supports, Trunnions and Struts

As an FAA-DER, APECS can also support your needs for developing non-OEM Product Improvements, Alterations, and Modifications to Piece-Parts as well as System Components. 


APECS has amassed a Consortium of Experienced and Well-Respected FAA-DERs whose wide range of expertise includes, but is not limited to:

>  Structures DERs
>  Cabin Safety/Mechanical DERs
>  Interiors DERs
>  Avionics/Electrical DERs
>  Powerplant DERs
>  Engine/APU DERs
>  Flammability DERs
>  Flight Test DERs

Additionally, as an accomplished and respected FAA-DER and RS-DER, our Chief Engineering Consultant, Mr. Peter Stonefield is capable of supporting MAJOR REPAIR/ALTERATION Data Development and Approval for a significant range of Title 14 CFR Part 23, 25, 27, & 29 Aircraft and Helicopter Engine, APU and Accessory Systems including, but not limited to; Power-plant Components ; APU Components; Oil and Fuel System Components, Most Electro-Mechanical System Components, Most Hydraulic Components, Most Pneumatic Components, Most Cabin Safety Components; and Landing Gear Components.  Additionally he has delegation for Propellers; blade hubs, spinners, housings, and all non-dynamic mechanical components.
  Mr. Stonefield's current FAA-DER Delegations (eCOA), includes:

Designated Engineering Representative - CONSULTANT
>  Delegated functions and authorized areas per FAA Order 8110.37E, Appendix 2

Propellers: Authorized regulation: 14 CFR Parts 23/25;
Chart F: C1; RS-DER; Major Repair Data for Propeller Components (blade hubs, spinners, housings, and all non-dynamic mechanical components).

Power Plant Installations: Authorized regulation: 14 CFR Parts 23/25/27/29
Chart B:  E1 – Auxiliary Power Unit, F1 – Engine Installation, F2 -- Fuel & Oil, F3 – Induction/Exhaust System, F6 – Ice Protection, F13 – Mechanical Control System, and Special: RS-DER; Major Repair Data for Power plant and APU Components (fuel, mechanical, pneumatic); Thrust Reverser Components (hydraulic, mechanical, pneumatic); air starters.

Cabin Safety / Mechanical: Authorized regulation: 14 CFR Parts 23/25/27/29;

Chart C1:  A1 -- Air Conditioning,  B1 -- Hydraulic, C1 – Ice Protection, D1 – Rain Protection, F1 -- Pneumatics, G1 – Wheels, Tires & Brakes, J1 -- Pressurization, L1 – Water System (Potable and Waste), and N1 -- Special: RS-DER and Major Repair for Landing Gear.


APECS supports several clients by acting as their Engineering Management both for their internal and external customers.  We provide Engineering Consulting and direction on a number of situations including Operational Specification Development, Engineering Manual Development and Liaison Engineering support with your clients worldwide. 

Our lengthy experience & broad ranging expertise are useful tools for any Technical Organization.
  Copyright 2016 by Asia-Pacific Engineering Consulting Services, LLC