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Engine and powerplant

STC SA1904WE

FAA DRS lists SA1904WE as Current · Amended, held by FTG, Inc., for Twin Commander Aircraft 520, Textron Aviation B50, and Textron Aviation C50, and 8 more aircraft configurations. Recorded change: Installation of Vibration Isolation Products (VIP) engine mount P/N VIP-50804-10 on various aircraft as shown on FAA Approved Model List (AML) No. SA1904WE. Snapshot dated June 30, 2026.

FAA-listed holder
FTG, Inc.
Aircraft configurations
11
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of Vibration Isolation Products (VIP) engine mount P/N VIP-50804-10 on various aircraft as shown on FAA Approved Model List (AML) No. SA1904WE.

SA1904WE 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: Twin Commander Aircraft 520, Textron Aviation B50, and Textron Aviation C50, and 8 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Twin Commander Aircraft 5206A1Textron Aviation B505A4Textron Aviation C505A4Textron Aviation D505A4Textron Aviation D50A5A4Textron Aviation D50B5A4Textron Aviation D50C5A4Textron Aviation D50E5A4Frakes Aviation G-44A-734
Frakes Aviation G-44AA-734
Frakes Aviation SCAN Type 30A-734

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Twin Commander Aircraft 520 and Textron Aviation B50, and 9 more aircraft configurations model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data 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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