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This certificate certifies that the change in the type design for the product meets the airworthiness requirements of the Civil Air Regulations.

How to fill out supplemental type certificate

How to fill out Supplemental Type Certificate

1. Begin by gathering all necessary information about the existing type certificate.
2. Identify the changes that require approval through the Supplemental Type Certificate (STC).
3. Prepare a detailed description of the modification or change.
4. Conduct necessary tests or analyses to demonstrate compliance with safety and performance standards.
5. Create appropriate documentation and drawings to illustrate the changes.
6. Complete the STC application form, including all required attachments.
7. Submit the application to the appropriate aviation regulatory authority for review.
8. Respond to any requests for additional information or clarifications from the regulatory body.
9. Await approval and receive the STC, ensuring to maintain compliance with any associated conditions.

Who needs Supplemental Type Certificate?

1. Aircraft manufacturers seeking to modify or enhance their aircraft designs.
2. Aftermarket companies developing new systems or components for existing aircraft.
3. Operators looking to install non-approved equipment or modifications.
4. Anyone involved in major alterations to aircraft requiring regulatory approval.

People Also Ask about

What is the difference between a supplemental type certificate and a 337?

An STC is an approval for a major alteration and major alterations requires a 337. If an item is a minor alteration it does not require an STC and a log book entry will do it.

How to get an STC approved?

An STC applicant submits a certification plan to the FAA that details the proposed alteration to a type-certified product and how that alteration will comply with the applicable FAA regulations and guidance material. The FAA reviews the certification plan and issues an STC project number if the plan is accepted.

What is considered a major repair in the FAA?

FAR 1 defines a Major repair as a repair that if improperly done, might appreciably affect weight, balance, structural strength, performance, powerplant operation, flight characteristics, or other qualities affecting airworthiness; or that is not done ing to accepted practices or cannot be done by elementary

What is considered a major alteration?

FAR 1 defines a major alteration as an alteration not listed in the aircraft, aircraft engine, or propeller specifications that might appreciably affect weight, balance, structural strength, performance, power plant operation, flight characteristics, or other qualities affecting airworthiness or that is not done

Is an STC always a major alteration?

Any STC is, by definition, a major alteration and also requires a 337 form.

What is a supplemental type certificate?

A supplemental type certificate ( STC ) is a type certificate ( TC ) issued when an applicant has received FAA approval to modify an aeronautical product from its original design.

What is the difference between TC and STC?

A supplemental type certificate ( STC ) is a type certificate ( TC ) issued when an applicant has received FAA approval to modify an aeronautical product from its original design.

Is an STC a major alteration?

“A Supplemental Type Certificate is an approval for a major alteration to a type certified product, i.e., an aircraft,” explained Ken Farsi, Managing Partner and President of Aerospace Design & Compliance, LLC and an FAA ODA.

For pdfFiller’s FAQs

What is Supplemental Type Certificate?

A Supplemental Type Certificate (STC) is a document issued by aviation authorities that approves a major modification or change to a type-certificated product, such as an aircraft or a component.

Who is required to file Supplemental Type Certificate?

Manufacturers or individuals who want to make major alterations or modifications to an already type-certificated aircraft or its components are required to file for a Supplemental Type Certificate.

How to fill out Supplemental Type Certificate?

To fill out a Supplemental Type Certificate, an applicant must complete the necessary forms provided by the aviation authority, detailing the modifications proposed, providing technical documentation, and demonstrating compliance with applicable regulations.

What is the purpose of Supplemental Type Certificate?

The purpose of a Supplemental Type Certificate is to ensure that any major alterations or modifications made to an aircraft or its components meet safety and regulatory standards before being approved for use.

What information must be reported on Supplemental Type Certificate?

The information that must be reported on a Supplemental Type Certificate includes details of the original type certificate, a description of the modifications, compliance with safety standards, engineering data, and any required testing results.