21.101-1 - Advisory Material for the Establishment of the Certification Basis of Changed Aeronautical Products (Cancelled)

Cancellation Notes
21.101-1
Date Cancelled
April 28, 2003
Date Issued
August 03, 2001
Responsible Office
AIR-110
Description

 

 

This advisory circular (AC) provides guidance for establishing the certification basis for changed aeronautical products and identifying the conditions under which it will be necessary to apply for a new type certificate. Title 14, Code of Federal Regulations (14 CFR) § 21.101 requires an applicant for a change to a type certificate to meet the latest requirements, except where the change is not significant, where areas of the product are not affected, where it would be impractical, or where it would not contribute materially to the level of safety of the changed product. Title 14 CFR § 21.19 identifies the conditions under which an applicant for a design change is required to make application for a new type certificate. This AC discusses and explains the criteria of 14 CFR §§ 21.19 and 21.101, and their application. It provides guidance as to the assessment of significant vs. not significant changes to the type certificated product. This document also provides guidance for the determination of substantial vs. significant changes.