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Cabin and interiors

STC SA554WE

FAA DRS lists SA554WE as Current · Reissued, held by SOUTHWESTERN AERO EXCHANGE INC., for Raytheon Aircraft D18S, Raytheon Aircraft D18C, and Raytheon Aircraft C-45G, and 4 more aircraft configurations. Recorded change: Installation of square topped stair cabin door. Snapshot dated June 30, 2026.

FAA-listed holder
SOUTHWESTERN AERO EXCHANGE INC.
Aircraft configurations
7
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of square topped stair cabin door.

SA554WE 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: Raytheon Aircraft D18S, Raytheon Aircraft D18C, and Raytheon Aircraft C-45G, and 4 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Raytheon Aircraft D18SA-765Raytheon Aircraft D18CA-765Raytheon Aircraft C-45GA-765Raytheon Aircraft TC-45GA-765Raytheon Aircraft C-45HA-765Raytheon Aircraft TC-45HA-765Raytheon Aircraft UC-45J (SNB-5)A-765

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Raytheon Aircraft D18S and Raytheon Aircraft D18C, and 5 more aircraft configurations model, serial range, and configuration?
  2. 02Which layout, materials, flammability evidence, and weight changes 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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