Section 171.31

14 CFR Ch. I (1-1-19 Edition)

(2) At facilities within or immediately adjacent to controlled airspace,
there must be the ground-air communications required by paragraph (d)(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 (d) (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 (d)
(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 communications 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. 171-16, 56 FR 65664, Dec.
17, 1991]

Section 171.31 Maintenance and operations
requirements.
(a) The owner of the facility must establish an adequate maintenance system and provide qualified maintenance
personnel to maintain the facility at
the level attained at the time it was
commissioned. Each person who maintains a facility must meet at least the
Federal Communications Commission-s
licensing requirements and show that
he has the special knowledge and skills
needed to maintain the facility including proficiency in maintenance procedures and the use of specialized test
equipment.
(b) The owner must prepare, and obtain approval of, an operations and
maintenance manual that sets forth
mandatory procedures for operations,
preventive maintenance, and emergency maintenance, including instructions on each of the following:
(1) Physical security of the facility.

(2) Maintenance and operations by
authorized persons only.
(3) FCC licensing requirements for
operating and maintenance personnel.
(4) Posting of licenses and signs.
(5) Relations between the facility and
FAA air traffic control facilities, with
a description of the boundaries of controlled airspace over or near the facility, instructions for relaying air traffic
control instructions and information
(if applicable), and instructions for the
operation of an air traffic advisory
service if the facility is located outside
of controlled airspace.
(6) Notice to the Administrator of
any suspension of service.
(7) Detailed arrangements for maintenance flight inspection and servicing
stating the frequency of servicing.
(8) Air-ground communications, if
provided, expressly written or incorporating appropriate sections of FAA
manuals by reference.
(9) Keeping of station logs and other
technical reports, and the submission
of reports required by Section 171.33.
(10) Monitoring of the facility, at
least once each half hour, to assure
continuous operation.
(11) Inspections by United States personnel.
(12) Names, addresses, and telephone
numbers of persons to be notified in an
emergency.
(13) Shutdowns for routine maintenance and issue of  - Notices to Airmen - 
for routine or emergency shutdowns
(private use facilities may omit the
 - Notices to Airmen - ).
(14) Commissioning of the facility.
(15) An acceptable procedure for
amending or revising the manual.
(16) The following information concerning the facility:
(i) Location by latitude and longitude to the nearest second, and its
position with respect to airport layouts.
(ii) The type, make, and model of the
basic radio equipment that will provide
the service.
(iii) The station power emission and
frequency.
(iv) The hours of operation.
(v) Station identification call letters
and method of station identification,
whether by Morse code or recorded

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