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Electrical systems

STC ST04736NY

FAA DRS lists ST04736NY as Current · Issued, held by Aerospace Design and Compliance LLC, for Textron Aviation 500, Textron Aviation 550, and Textron Aviation S550, and 4 more aircraft configurations. Recorded change: True Blue TS28 Emergency Battery Power Supply Replacement. Snapshot dated June 30, 2026.

FAA-listed holder
Aerospace Design and Compliance LLC
Aircraft configurations
7
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

True Blue TS28 Emergency Battery Power Supply Replacement.

ST04736NY 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 500, Textron Aviation 550, and Textron Aviation S550, and 4 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Textron Aviation 500A22CETextron Aviation 550A22CETextron Aviation S550A22CETextron Aviation 560A22CETextron Aviation 680T00012WITextron Aviation 680AT00012WITextron Aviation 700T00015WI

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Textron Aviation 500 and Textron Aviation 550, and 5 more aircraft configurations model, serial range, and configuration?
  2. 02Which load analysis, wiring changes, protection, and limitations 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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