[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR91.403]

[Page 552]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 91_GENERAL OPERATING AND FLIGHT RULES--Table of Contents
 
     Subpart E_Maintenance, Preventive Maintenance, and Alterations
 
Sec. 91.403  General.

    (a) The owner or operator of an aircraft is primarily responsible 
for maintaining that aircraft in an airworthy condition, including 
compliance with part 39 of this chapter.
    (b) No person may perform maintenance, preventive maintenance, or 
alterations on an aircraft other than as prescribed in this subpart and 
other applicable regulations, including part 43 of this chapter.
    (c) No person may operate an aircraft for which a manufacturer's 
maintenance manual or instructions for continued airworthiness has been 
issued that contains an airworthiness limitations section unless the 
mandatory replacement times, inspection intervals, and related 
procedures specified in that section or alternative inspection intervals 
and related procedures set forth in an operations specification approved 
by the Administrator under part 121 or 135 of this chapter or in 
accordance with an inspection program approved under Sec. 91.409(e) 
have been complied with.
    (d) A person must not alter an aircraft based on a supplemental type 
certificate unless the owner or operator of the aircraft is the holder 
of the supplemental type certificate, or has written permission from the 
holder.

[Doc. No. 18334, 54 FR 34311, Aug. 18, 1989, as amended by Amdt. 91-267, 
66 FR 21066, Apr. 27, 2001; Amdt. 91-293, 71 FR 56005, Sept. 26, 2006]