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Engine and powerplant

STC SA4-492

FAA DRS lists SA4-492 as Current · Reissued, held by FTG, Inc., for Boeing DC-4 and Boeing C54-DC. Recorded change: Installation of VIP P/N's 104-1-B and 104-1-C engine mount cores. Snapshot dated June 30, 2026.

FAA-listed holder
FTG, Inc.
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of VIP P/N's 104-1-B and 104-1-C engine mount cores.

SA4-492 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: Boeing DC-4 and Boeing C54-DC. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing DC-4A-762Boeing C54-DCA-762

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing DC-4 and Boeing C54-DC 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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