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Cabin and interiors

STC SA4099NM

FAA DRS lists SA4099NM as Current · Reissued, held by Sierra Industries Ltd., for Textron Aviation 501 and Textron Aviation 551. Recorded change: Installation of a replacement cabin door hinge assembly. Snapshot dated June 30, 2026.

FAA-listed holder
Sierra Industries Ltd.
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a replacement cabin door hinge assembly.

SA4099NM 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: Textron Aviation 501 and Textron Aviation 551. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Textron Aviation 501A27CETextron Aviation 551A27CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Textron Aviation 501 and Textron Aviation 551 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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