"Form 337 Field Approvals for Major Alterations"  Whether to file a form 337 Field Approval for a Major Alteration is one of the things that can turn into a big problem for you as the aircraft owner if the IA or Repair Station you are using is not familiar with;

• How the Form 337  works.
• When to use it; was the work performed a Major Alteration or a Minor Alteration?
• Does the work performed conform to Type Design? Type design is defined in FAR 21.31.

Navigating the FAA documentation process is daunting!   It can take a few days if presented correctly to many months of rejection and resubmission.  Having dealt with the FAA Field Approval process for over 40 years, we can assist in the appropriate documentation submission to seriously limit rejections.  This includes new panels with state-of-the-art components without PMA or STC approval. This includes such items as new Annunciators, Angle-of-Attack systems, etc.  When you are installing components requiring FAA Field Approval you must adhere to required documents such as;

• Electrical Load Analysis
• Weight and Balance
• Supplemental Flight Manuals
• Wiring Schematics covering the newly-installed components for Troubleshooting. 

These are all documents required by the Instructions for Continued Airworthiness (“ICA”). Navigating through these documents is where we can make your life easier and less costly.