Section 171.13
Section 171.13

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

Subpart B - Nondirectional Radio
Beacon Facilities

Reports.

The owner of each facility to which
this subpart applies shall make the following reports on forms furnished by
the FAA, at the times indicated, to the
FAA Regional office for the area in
which the facility is located:
(a) Record of meter readings and adjustments (Form FAA-198). To be filled out
by the owner with the equipment adjustments and meter readings as of the
time of commissioning, with one copy
to be kept in the permanent records of
the facility and two copies to the appropriate Regional office of the FAA.
The owner shall revise the form after
any major repair, modernization, or returning, to reflect an accurate record
of facility operation and adjustment.
(b) Facility maintenance log (FAA Form
6003-1). This form is a permanent
record of all equipment malfunctioning
met in maintaining the facility, including information on the kind of
work and adjustments made, equipment failures, causes (if determined),
and corrective action taken. The owner
shall keep the original of each report
at the facility and send a copy to the
appropriate Regional office of the FAA
at the end of the month in which it is
prepared.
(c) Radio equipment operation record
(Form FAA-418). To contain a complete
record of meter readings, recorded on
each scheduled visit to the facility.
The owner shall keep the original of
each month-s record at the facility and
send a copy of it to the appropriate Regional office of the FAA.
(d) [Reserved]
(e) VOR ground check error data
(Forms FAA-2396 and 2397). To contain
results of the monthly course accuracy
ground check in accordance with FAA
Handbook AF P 6790.9  - Maintenance
Instructions for VHF Omniranges - .
The owner shall keep the originals in
the facility and send a copy of each
form to the appropriate Regional office
of the FAA on a monthly basis.
(49 U.S.C. 1348)
[Doc. No. 5034, 29 FR 11337, Aug. 6, 1964, as
amended by Amdt. 171-5, 34 FR 15245, Sept.
30, 1969; Amdt. 171-10, 40 FR 36110, Aug. 19,
1975]

Section 171.21

Scope.

(a) This subpart sets forth minimum
requirements for the approval and operation of non-Federal, nondirectional
radio beacon facilities that are to be
involved in the approval of instrument
flight rules and air traffic control procedures related to those facilities.
(b) A nondirectional radio beacon
( - H -  facilities domestically - NDB facilities internationally) radiates a continuous carrier of approximately equal
intensity at all azimuths. The carrier
is modulated at 1020 cycles per second
for station identification purposes.
[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]

Section 171.23

Requests for IFR procedure.

(a) Each person who requests an IFR
procedure based on a nondirectional
radio beacon facility that he owns
must submit the following information
with that request:
(1) A description of the facility and
evidence that the equipment meets the
performance requirements of Section 171.27
and is installed in accordance with
Section 171.29.
(2) A proposed procedure for operating the facility.
(3) A proposed maintenance arrangement and a maintenance manual that
meets the requirements of Section 171.31.
(4) A statement of intention to meet
the requirements of this subpart.
(5) A showing that the facility has an
acceptable level of operational reliability and an acceptable standard of
performance. Previous equivalent operational experience with a facility with
identical design and operational characteristics will be considered in showing compliance with this subparagraph.
(b) After the FAA inspects and evaluates the facility, it advises the owner
of the results and of any required
changes in the facility or the maintenance manual or maintenance organization. The owner must then correct
the deficiencies, if any, and operate the

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