[Code of Federal Regulations]

[Title 14, Volume 3]

[Revised as of January 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 14CFR171.9]



[Page 217]

 

                     TITLE 14--AERONAUTICS AND SPACE

 

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 

                               (CONTINUED)

 

PART 171_NON-FEDERAL NAVIGATION FACILITIES--Table of Contents

 

                        Subpart A_VOR Facilities

 

Sec. 171.9  Installation requirements.



    (a) The facility must be installed according to accepted good 

engineering practices, applicable electric and safety codes, and the 

installation must meet at least the Federal Communication Commission's 

licensing requirements.

    (b) The facility must have a reliable source of suitable primary 

power, either from a power distribution system or locally generated, 

with a supplemental standby system, if needed.

    (c) Dual transmitting equipment with automatic changeover is 

preferred and may be required to support certain IFR procedures.

    (d) There must be a means for determining, from the ground, the 

performance of the equipment, including the antenna, initially and 

periodically.

    (e) A facility intended for use as an instrument approach aid for an 

airport must have or be supplemented by (depending on circumstances) the 

following ground-air or landline communications services:

    (1) At facilities outside of and not immediately adjacent to 

controlled airspace, there must be ground-air communications from the 

airport served by the facility. Separate communications channels are 

acceptable.

    (2) At facilities within or immediately adjacent to controlled 

airspace, there must be the ground-air communications required by 

paragraph (e)(1) of this section and reliable communications (at least a 

landline telephone) from the airport to the nearest FAA air traffic 

control or communication facility.



Paragraphs (e) (1) and (2) of this section are not mandatory at airports 

where an adjacent FAA facility can communicate with aircraft on the 

ground at the airport and during the entire proposed instrument approach 

procedure. In addition, at low traffic density airports within or 

immediately adjacent to controlled airspace and where extensive delays 

are not a factor, the requirements of paragraphs (e) (1) and (2) of this 

section may be reduced to reliable communications (at least a landline 

telephone) from the airport to the nearest FAA air traffic control or 

communication facility, if an adjacent FAA facility can communicate with 

aircraft during the proposed instrument approach procedure, at least 

down to the minimum en route altitude for the controlled airspace area.



[Doc. No. 5034, 29 FR 11337, Aug. 6, 1964, as amended by Amdt. 171-7, 35 

FR 12711, Aug. 11, 1970; Amdt. 171-16, 56 FR 65664, Dec. 17, 1991]