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Engine and powerplant

STC SA4-493

FAA DRS lists SA4-493 as Current · Reissued, held by FTG, Inc., for General Dynamics PBY-5A (Army OA-10A) and Catalina Aircraft Trust 28-5ACF. Recorded change: Installation of VIP P/N 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 104-1-C engine mount cores.

SA4-493 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: General Dynamics PBY-5A (Army OA-10A) and Catalina Aircraft Trust 28-5ACF. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

General Dynamics PBY-5A (Army OA-10A)2-548
Catalina Aircraft Trust 28-5ACFTC 785

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact General Dynamics PBY-5A (Army OA-10A) and Catalina Aircraft Trust 28-5ACF 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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