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Get the free Supplemental Type Certificate - rgl faa

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This document certifies that the specified changes in the design for a specific aircraft meet airworthiness requirements as established by the Federal Aviation Administration.
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How to fill out supplemental type certificate

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How to fill out Supplemental Type Certificate

01
Gather necessary documentation, including aircraft specifications, design details, and regulatory requirements.
02
Complete the application form for the Supplemental Type Certificate (STC) from the relevant aviation authority.
03
Prepare detailed engineering data that demonstrates compliance with safety and performance standards.
04
Submit the application along with all supporting documents and pay any applicable fees.
05
Respond to any requests for additional information from the aviation authority during the review process.
06
Once approved, receive the STC and ensure it is maintained with the aircraft documentation.

Who needs Supplemental Type Certificate?

01
Aircraft manufacturers looking to modify a previously certified aircraft.
02
Maintenance organizations that want to implement design changes or upgrades to existing aircraft.
03
Owners of aircraft who wish to make alterations that affect the aircraft's type design.
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People Also Ask about

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

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A Supplemental Type Certificate (STC) is an FAA document that approves a major change in the type design of a previously approved aircraft, engine, or propeller.
Aircraft manufacturers, modifiers, and repair stations that wish to make significant alterations or modifications to an aircraft’s design must file for an STC.
To fill out an STC, applicants must submit a completed application form to the FAA, including detailed technical data, compliance statements, and any supporting documentation that demonstrates the modification meets regulatory requirements.
The purpose of an STC is to provide a formal process for approving changes to the design of an aircraft, ensuring safety and compliance with regulatory standards.
The information that must be reported includes the applicant's details, description of the change, technical data demonstrating compliance, and any necessary drawings or specifications related to the modification.
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