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Engine and powerplant

STC SA1636WE

FAA DRS lists SA1636WE as Current · Reissued, held by Southwestern Aero Exchange Inc, for Textron Aviation D18C, Textron Aviation D18S, and Textron Aviation E18S, and 9 more aircraft configurations. Recorded change: Installation of AiResearch TPE 331 series engine, tricycle landing gear and ventral fin, extension of fuse- lage and related changes. Snapshot dated June 30, 2026.

FAA-listed holder
Southwestern Aero Exchange Inc
Aircraft configurations
12
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of AiResearch TPE 331 series engine, tricycle landing gear and ventral fin, extension of fuse- lage and related changes.

SA1636WE 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: Textron Aviation D18C, Textron Aviation D18S, and Textron Aviation E18S, and 9 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Textron Aviation D18CA-765Textron Aviation D18SA-765Textron Aviation E18SA-765Textron Aviation E18S-9700A-765Textron Aviation G18SA-765Textron Aviation H18A-765Textron Aviation C-45GA-765Textron Aviation TC-45GA-765Textron Aviation TC-45HA-765Textron Aviation C-45HA-765Textron Aviation TC-45JA-765Textron Aviation JRB-6A-765

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Textron Aviation D18C and Textron Aviation D18S, and 10 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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