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Cabin and interiors

STC ST03221AT

FAA DRS lists ST03221AT as Current · Issued, held by Seal Dymanics Inc., for Boeing 757-200 Series and Boeing 757-200CB Series. Recorded change: Installation of a passenger cabin Lanyard Support System for Overhead Air Conditioning Ducts. Snapshot dated June 30, 2026.

FAA-listed holder
Seal Dymanics Inc.
Aircraft configurations
2
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of a passenger cabin Lanyard Support System for Overhead Air Conditioning Ducts.

ST03221AT 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: Boeing 757-200 Series and Boeing 757-200CB Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 757-200 SeriesA2NMBoeing 757-200CB SeriesA2NM

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 757-200 Series and Boeing 757-200CB Series 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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