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Cabin and interiors

STC ST10818SC

FAA DRS lists ST10818SC as Current · Issued, held by Cavanaugh Air Museum Inc, for McDonnell Douglas DC3C-S1C3G. Recorded change: ONE ONLY STC, SN 20401: Supplemental Type Certificate (STC) for reduction of an in flight cabin seating arrangement accommodating a maximum of 16 passengers on DOUGLAS Model DC3C-S1C3G, Serial Number 20401. Snapshot dated June 30, 2026.

FAA-listed holder
Cavanaugh Air Museum Inc
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

ONE ONLY STC, SN 20401: Supplemental Type Certificate (STC) for reduction of an in flight cabin seating arrangement accommodating a maximum of 16 passengers on DOUGLAS Model DC3C-S1C3G, Serial Number 20401.

ST10818SC 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: McDonnell Douglas DC3C-S1C3G. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

McDonnell Douglas DC3C-S1C3GA-669

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact McDonnell Douglas DC3C-S1C3G 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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