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Engine and powerplant

STC SA1666NM

FAA DRS lists SA1666NM as Current · Reissued, held by Franklin Aircraft Engines Inc., for Univair Aircraft 108-2 and Univair Aircraft 108-3. Recorded change: Installation of a Franklin 6A-335-B or 6A-335-B1 engine, McCauley 2A31C/84S-4 to -8 propeller, spinner and associated systems. Modification includes installation of a 40 amp alternator, Model SFA 5582. Snapshot dated June 30, 2026.

FAA-listed holder
Franklin Aircraft Engines Inc.
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a Franklin 6A-335-B or 6A-335-B1 engine, McCauley 2A31C/84S-4 to -8 propeller, spinner and associated systems. Modification includes installation of a 40 amp alternator, Model SFA 5582.

SA1666NM 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: Univair Aircraft 108-2 and Univair Aircraft 108-3. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Univair Aircraft 108-2A-767Univair Aircraft 108-3A-767

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Univair Aircraft 108-2 and Univair Aircraft 108-3 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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