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Field Approval Process Page
for guidance in obtaining a Field Approval.
Data Package Page
supporting documentation for data package
Drawings Page
 detailed drawings for mounting configs

There is a standardized procedure developed by the FAA for requesting approval of technical data. Given your own core capabilities you may already understand these procedures, however, the data package and drawings pages support information that you need.

Note: A Field Approval is not a regulation, it's a policy. Because it's a procedure and not a rule, no one is automatically entitled to a Field    Approval, however, with the proper data package presented to an Aviation Safety Inspector (ASI) you're likely to be granted one.

Your intension is to mount an STC approved FLIR camera on the exterior of an aircraft via a major/minor alteration to support the camera assembly. This can be accomplished with a field approval by gathering "approved data" by an FAA Designee (DER,  ODA) then presenting the data to an Aviation Safety Inspector (ASI) for approval. Every installation is different and approved on a case-by-case basis by the ASI and/or the Aircraft Certification Office (ACO) as deemed appropriate. Fig. 4-68 Job Aid allows field approvals for exterior mounted FLIR cameras other than obtaining an STC approval, see field approval process page above.
Source: AC 43-210A, 2.2.2

You must use approved technical data to accomplish a major alteration or repair on a product and approve the product for return to service. The steps involved in obtaining approval of "technical data" include the following:

(1) conduct research - determine weather "acceptable data" or "approved data" will be required for the alteration.
      "Acceptable data" means data acceptable to the FAA....... (i.e., an item that meets regulatory standards) for minor repairs/alterations.
      "Approved data" is data approved by the FAA......... (i.e., DER, ODA, DAR, ASI, ACO or AEG approved) for major repairs/alterations.

(2) determine the alteration classification - see figures 3-1 and 3-2, in the field approval process page.

(3) evaluate the data - after gathering and organizing the data you can prepare the data package components.

(4) contact your local FAA office and speak with an ASI who has field approval authority, and to meet to review the request.

(5) send the complete data package to the ASI where it will be determine if the field approval request is appropriate.

(6) the ASI will examine the data to see if it has been approved. If all the required data is approved, then further approval is not required.
      If any required technical data is not approved, then you can obtain approval from a DER, an ODA, or by requesting a field approval.

(7) perform the repair or alteration after the repair or alteration data is approved.

Note: Field approvals are a method by which the FAA approves "technical data" for a major repair/major alteration on a single aircraft.
However, the FAA inspector, if satisfied, can sign Block 3 that grants duplication of the data for the original Form 337 to be extended
to other identical aircraft.
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