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Other aircraft modifications

STC SA4087SW

FAA DRS lists SA4087SW as Current · Reissued, held by Brittain Industries, Inc, for Miscellaneous Miscellaneous. Recorded change: Installation of Brittain BI-817 directional gyro coupler. Snapshot dated June 30, 2026.

FAA-listed holder
Brittain Industries, Inc
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Brittain BI-817 directional gyro coupler.

SA4087SW identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Miscellaneous Miscellaneous. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Miscellaneous MiscellaneousMiscellaneous

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Miscellaneous Miscellaneous model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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