Pricing & Surcharge Updates Spares, Exchange, and Maintenance Service Plan invoices may include a price increase and/or surcharge as a result of increases in global supply chain costs. Repair surcharges will be applied at checkout. Read more
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Supplemental Type Certificate Catalog

Discover Honeywell Aerospace’s range of STCs to enable Aftermarket Retrofits, Modifications and Upgrades (RMU) for Civilian Aircraft

A Supplemental Type Certificate (STC) is a document issued when an applicant has received approval from the Federal Aviation Administration (FAA) to modify an aircraft from the original design. The STC, which incorporates by reference the related Type Certificate (TC), approves not only the modification, but how the modification affects the original design. The STC and its related information (drawings, data, specifications) are the property of the STC holder.

If you have any questions about STC, RTU or the order form, please contact the Honeywell Aerospace STC team here: STCRTU@honeywell.com.