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Cabin and interiors

STC SA2-250

FAA DRS lists SA2-250 as Current · Reissued, held by Signature Flight Support Corporation, for Lockheed Martin Aeronautics 18. Recorded change: Alter cabin windows on R.H. side of fuselage. Snapshot dated June 30, 2026.

FAA-listed holder
Signature Flight Support Corporation
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Alter cabin windows on R.H. side of fuselage.

SA2-250 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: Lockheed Martin Aeronautics 18. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Lockheed Martin Aeronautics 18A-723

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Lockheed Martin Aeronautics 18 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?

Related cabin and interiors STCs

ST00934LA-DCabin and interiors

Modifies the aircraft to remove two rows (eighteen seat places) of Recaro TSO-C127 seats from the forward economy class zone. The class dividers between business and economy classes will be relocated aft by 30/31 inches (outboard/inboard). The business class seats are increased in pitch from 48 to 55 inches (excluding rows 8 and 9). The six crew rest seats and curtain located within the economy class area will be relocated aft with the dividers. The remaining economy class seat rows forward of door three will be increased in pitch from 31 to either 34 or 35 inches. The remaining economy seats will not be affected. The final airplane seat configuration count will be 12F/49B/197Y. The installation is in accordance with DAS-1-WE Approved United Air Lines Master Document List No. 00934, dated December 12, 2000, or later FAA approved revisions. STC amended to relocate seat row 8 to increase the seat pitch between seat rows 8 and 9 from 48 inches to 53 inches. Also replaces the existing First Class/Business Class divider with a class divider that will provide sufficient distance to the new location of seat row 8. The final aircraft seat configuration count will be 12F/49B/197Y. The installation is in accordance with DAS-1-WE Approved United Air Lines Master Document List No. 00934, Revision A, dated February 19, 2001, or later approved revisions.

FAA holder: United Airlines Inc

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ST00935LA-DCabin and interiors

This modification consists of the following: The boarding music player at door 1 left will be removed and new controls will be added at door 2 left attendant panel. Passenger seats in B, C, D-Zone and Upper Deck will be re-pitched resulting in seat count from 368 to 347. The installation is in accordance with DAS-1-WE Approved United Air Lines Master Drawing List No. 00935 dated January 15, 2001, or later FAA approved revisions.

FAA holder: United Airlines Inc

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ST00936LA-DCabin and interiors

The modification changes the passenger seating capacity to forty-one passenger seats for the CRAF Aeromedical Evacuation Interior Configuration #1 and forty-five seats for Configuration #2. Modifies the aircraft interior through the removal of specific seats and monuments not required per the final configuration, and rearranges PSU's accordingly. The alteration will install system close outs and two electrical power provisions at the forward bulkhead of the forward cargo compartment. The installation is in accordance with DAS-100219-NM United Air Lines Master Document List No. 00936, Revision D, dated January 26, 2006 or later FAA approved revisions.

FAA holder: United Airlines Inc

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