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816 

14 CFR Ch. I (1–1–24 Edition) 

§ 171.3 

of instrument flight rules and air traf-
fic control procedures related to those 
facilities. 

[Doc. No. 5034, 29 FR 11337, Aug. 6, 1964, as 
amended by Amdt. 171–2, 31 FR 5408, Apr. 6, 
1966; Amdt. 171–7, 35 FR 12711, Aug. 11, 1970] 

§ 171.3 Requests for IFR procedure. 

(a) Each person who requests an IFR 

procedure based on a VOR facility that 
he owns must submit the following in-
formation with that request: 

(1) A description of the facility and 

evidence that the equipment meets the 
performance requirements of § 171.7 and 
is installed in accordance with § 171.9. 

(2) A proposed procedure for oper-

ating the facility. 

(3) A proposed maintenance organiza-

tion and maintenance manual that 
meets the requirements of § 171.11. 

(4) A statement of intention to meet 

the requirements of this subpart. 

(5) A showing that the facility has an 

acceptable level of operational reli-
ability and an acceptable standard of 
performance. Previous equivalent oper-
ational experience with a facility with 
identical design and operational char-
acteristics will be considered in show-
ing compliance with this paragraph. 

(b) After the FAA inspects and evalu-

ates the facility, it advises the owner 
of the results and of any required 
changes in the facility or the mainte-
nance manual or maintenance organi-
zation. The owner must then correct 
the deficiencies, if any, and operate the 
facility for an in-service evaluation by 
the FAA. 

[Doc. No. 5034, 29 FR 11337, Aug. 6, 1964, as 
amended by Amdt. 171–7, 35 FR 12711, Aug. 11, 
1970] 

§ 171.5 Minimum requirements for ap-

proval. 

(a) The following are the minimum 

requirements that must be met before 
the FAA will approve an IFR procedure 
for a non-Federal VOR: 

(1) The facility’s performance, as de-

termined by air and ground inspection, 
must meet the requirements of § 171.7. 

(2) The installation of the equipment 

must meet the requirements of § 171.9. 

(3) The owner must agree to operate 

and maintain the facility in accord- 
ance with § 171.11. 

(4) The owner must agree to furnish 

periodic reports, as set forth in § 171.13, 
and must agree to allow the FAA to in-
spect the facility and its operation 
whenever necessary. 

(5) The owner must assure the FAA 

that he will not withdraw the facility 
from service without the permission of 
the FAA. 

(6) The owner must bear all costs of 

meeting the requirements of this sec-
tion and of any flight or ground inspec-
tions made before the facility is com-
missioned, except that the Federal 
Aviation Administration may bear cer-
tain of these costs subject to budgetary 
limitations and policy established by 
the Administrator. 

(b) If the applicant for approval 

meets the requirements of paragraph 
(a) of this section, the FAA commis-
sions the facility as a prerequisite to 
its approval for use in an IFR proce-
dure. The approval is withdrawn at any 
time the facility does not continue to 
meet those requirements. 

[Doc. No. 5034, 29 FR 11337, Aug. 6, 1964, as 
amended by Amdt. 171–6, 35 FR 10288, June 
24, 1970] 

§ 171.7 Performance requirements. 

(a) The VOR must perform in accord-

ance with the ‘‘International Stand-
ards and Recommended Practices, 
Aeronautical Telecommunications,’’ 
Part I, paragraph 3.3 (Annex 10 to the 
Convention on International Civil 
Aviation), except that part of para-
graph 3.3.2.1 specifying a radio fre-
quency tolerance of 0.005 percent, and 
that part of paragraph 3.3.7 requiring 
removal of only the bearing informa-
tion. In place thereof, the frequency 
tolerance of the radio frequency carrier 
must not exceed plus or minus 0.002 
percent, and all radiation must be re-
moved during the specified deviations 
from established conditions and during 
periods of monitor failure. 

(b) Ground inspection consists of an 

examination of the design features of 
the equipment to determine that there 
will not be conditions that will allow 
unsafe operations because of compo-
nent failure or deterioration.