STC SA5640NM-D
FAA DRS lists SA5640NM-D as Current · Reissued, held by United Airlines Inc, for Boeing 747-400 Series. Recorded change: Extend business class into C-Zone section, changing seat count from 18F/68C/350Y to 18F/80C/320Y. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Extend business class into C-Zone section, changing seat count from 18F/68C/350Y to 18F/80C/320Y.
SA5640NM-D 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 747-400 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Boeing 747-400 Series model, serial range, and configuration?
- 02Which layout, materials, flammability evidence, and weight changes apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related cabin and interiors STCs
Modification of an Executive Interior Arrangement including Cabin Double Seats, Divans, Oxygen System, Emergency Lighting, and Emergency Equipment in accordance with Jet Aviation Master Data List 05-299G001 Revision D, dated July 22, 2011 and FAA Approved Jet Aviation Airplane Flight Manual Supplement 05-169M001, Revision NC, dated July 29, 2011, or later FAA approved revisions.
FAA holder: Jet Aviation St. Louis Inc.
Removal of cabin door for flight.
FAA holder: Heliplane Aircraft Corporation International
Installation of an Upper Deck Galley; Zone D, Cart Stow Unit and Zone E, Cart Stow Unit.
FAA holder: AIM Aviation Inc
Manufacture of Cabin Floor Protectors in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97123, no revision, dated August 15, 1997, and installation per Report No. AA-97122, no revision, dated August 15, 1997, or later FAA approved revisions.
FAA holder: Bell Helicopter Textron Inc.