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Engine and powerplant

STC SA622AL

FAA DRS lists SA622AL as Current · Reissued, held by STOL Aviation LLC c/o Tom Csatari, for Interstate Engineering & Type Design S-1B1 (Army L-6; XL-6). Recorded change: Modification of powerplant installation, fuselage (other than weld assembly), wing flaps, and tail wheel installation to conform to the designs of the corresponding installations, assemblies, and components of the Model S-1B2 airplane. Snapshot dated June 30, 2026.

FAA-listed holder
STOL Aviation LLC c/o Tom Csatari
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Modification of powerplant installation, fuselage (other than weld assembly), wing flaps, and tail wheel installation to conform to the designs of the corresponding installations, assemblies, and components of the Model S-1B2 airplane.

SA622AL 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: Interstate Engineering & Type Design S-1B1 (Army L-6; XL-6). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Interstate Engineering & Type Design S-1B1 (Army L-6; XL-6)A-754

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Interstate Engineering & Type Design S-1B1 (Army L-6; XL-6) 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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