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Other aircraft modifications

STC SH3677SW

FAA DRS lists SH3677SW as Current · Reissued, held by RSG Products, for Bell Helicopter Textron 412. Recorded change: Installation of Motorola Syntar 9000 FM Radios. Snapshot dated June 30, 2026.

FAA-listed holder
RSG Products
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Motorola Syntar 9000 FM Radios.

SH3677SW 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: Bell Helicopter Textron 412. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Bell Helicopter Textron 412H4SW

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Bell Helicopter Textron 412 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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