756 

14 CFR Ch. I (1–1–14 Edition) 

§§ 91.423–91.499 

(2) Each change made as required by 

airworthiness directives; and 

(3) Each change made in compliance 

with manufacturer’s service bulletins, 
if the entry is specifically requested in 
that bulletin. 

(c) For the purposes of this section, a 

rebuilt engine is a used engine that has 
been completely disassembled, in-
spected, repaired as necessary, reas-
sembled, tested, and approved in the 
same manner and to the same toler-
ances and limits as a new engine with 
either new or used parts. However, all 
parts used in it must conform to the 
production drawing tolerances and lim-
its for new parts or be of approved 
oversized or undersized dimensions for 
a new engine. 

§§ 91.423–91.499

[Reserved] 

Subpart F—Large and Turbine- 

Powered Multiengine Air-
planes and Fractional Owner-
ship Program Aircraft 

S

OURCE

: Doc. No. 18334, 54 FR 34314, Aug. 

18, 1989, unless otherwise noted. 

§ 91.501

Applicability. 

(a) This subpart prescribes operating 

rules, in addition to those prescribed in 
other subparts of this part, governing 
the operation of large airplanes of U.S. 
registry, turbojet-powered multiengine 
civil airplanes of U.S. registry, and 
fractional ownership program aircraft 
of U.S. registry that are operating 
under subpart K of this part in oper-
ations not involving common carriage. 
The operating rules in this subpart do 
not apply to those aircraft when they 
are required to be operated under parts 
121, 125, 129, 135, and 137 of this chapter. 
(Section 91.409 prescribes an inspection 
program for large and for turbine-pow-
ered (turbojet and turboprop) multien-
gine airplanes and turbine-powered 
rotorcraft of U.S. registry when they 
are operated under this part or part 129 
or 137.) 

(b) Operations that may be conducted 

under the rules in this subpart instead 
of those in parts 121, 129, 135, and 137 of 
this chapter when common carriage is 
not involved, include— 

(1) Ferry or training flights; 

(2) Aerial work operations such as 

aerial photography or survey, or pipe-
line patrol, but not including fire fight-
ing operations; 

(3) Flights for the demonstration of 

an airplane to prospective customers 
when no charge is made except for 
those specified in paragraph (d) of this 
section; 

(4) Flights conducted by the operator 

of an airplane for his personal trans-
portation, or the transportation of his 
guests when no charge, assessment, or 
fee is made for the transportation; 

(5) Carriage of officials, employees, 

guests, and property of a company on 
an airplane operated by that company, 
or the parent or a subsidiary of the 
company or a subsidiary of the parent, 
when the carriage is within the scope 
of, and incidental to, the business of 
the company (other than transpor-
tation by air) and no charge, assess-
ment or fee is made for the carriage in 
excess of the cost of owning, operating, 
and maintaining the airplane, except 
that no charge of any kind may be 
made for the carriage of a guest of a 
company, when the carriage is not 
within the scope of, and incidental to, 
the business of that company; 

(6) The carriage of company officials, 

employees, and guests of the company 
on an airplane operated under a time 
sharing, interchange, or joint owner-
ship agreement as defined in paragraph 
(c) of this section; 

(7) The carriage of property (other 

than mail) on an airplane operated by 
a person in the furtherance of a busi-
ness or employment (other than trans-
portation by air) when the carriage is 
within the scope of, and incidental to, 
that business or employment and no 
charge, assessment, or fee is made for 
the carriage other than those specified 
in paragraph (d) of this section; 

(8) The carriage on an airplane of an 

athletic team, sports group, choral 
group, or similar group having a com-
mon purpose or objective when there is 
no charge, assessment, or fee of any 
kind made by any person for that car-
riage; and 

(9) The carriage of persons on an air-

plane operated by a person in the fur-
therance of a business other than 
transportation by air for the purpose of 
selling them land, goods, or property, 

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