[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR21.97]

[Page 130]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 21--CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS--Table of Contents
 
                 Subpart D--Changes to Type Certificates
 
Sec. 21.97  Approval of major changes in type design.

    (a) In the case of a major change in type design, the applicant must 
submit substantiating data and necessary descriptive data for inclusion 
in the type design.
    (b) Approval of a major change in the type design of an aircraft 
engine is limited to the specific engine configuration upon which the 
change is made unless the applicant identifies in the necessary 
descriptive data for inclusion in the type design the other 
configurations of the same engine type for which approval is requested 
and shows that the change is compatible with the other configurations.

[Amdt. 21-40, 39 FR 35459, Oct. 1, 1974]