14CFR vol3 part171 - 80 pages

Page 1 -   PAGE

170-3, 66 FR 21067, Apr. 27, 2001; Docket FAA-
2017-0733, Amdt. 170-4, 82 FR 34400, July 25,
2017]
Subpart B - Airport Traffic Control
(b) An airport meets the establishment criteria when it sati...
(c) The satisfaction of all the criteria
Section 170.15
Section 170.11 Scope.
Section 170.13 Airport Traffic Control Tower
(a) The following criteria along with
Subpart C [Reserved]
PART 171 - NON-FEDERAL
Subpart A - VOR Facilities
171.1 Scope.
171.3 Requests for IFR procedure.
171.5 Minimum requirements for approval.
171.7 Performance requirements.
171.9 Installation requirements.
171.11 Maintenance and operations requirements.
171.13 Reports.
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Section 171.1
14 CFR Ch. I (1-1-19 Edition)
Subpart B - Nondirectional Radio Beacon
171.211 Maintenance and operations requirements.
171.213 Reports.
171.21 Scope.
171.23 Requests for IFR procedure.
171.25 Minimum requirements for approval.
171.27 Performance requirements.
171.29 Installation requirements.
171.31 Maintenance and operations requirements.
171.33 Reports.
Subpart C - Instrument Landing System
171.41 Scope.
171.43 Requests for IFR procedure.
171.45 Minimum requirements for approval.
171.47 Performance requirements.
171.49 Installation requirements.
171.51 Maintenance and operations requirements.
171.53 Reports.
Subpart D - True Lights
...

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Section 171.7
1966; Amdt. 171-7, 35 FR 12711, Aug. 11, 1970]
Section 171.3
(a) Each person who requests an IFR
(b) After the FAA inspects and evaluates the facility, it ad...
1970]
Section 171.5 Minimum requirements for approval.
(a) The following are the minimum
(b) If the applicant for approval
(a) of this section, the FAA commissions the facility as a p...
24, 1970]
Section 171.7
(a) The VOR must perform in accordance with the  - Internati...
(b) Ground inspection consists of an
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Section 171.9
14 CFR Ch. I (1-1-19 Edition)
(c) The monitor is checked periodically, during the in-servi...
(d) Flight tests to determine the facility-s adequacy for op...
(e) After January 1, 1975, the owner of
3.3.5.7 of Annex 10 to the Convention on
1970; Amdt. 171-9, 38 FR 28557, Oct. 15, 1973]
Section 171.9 Installation requirements.
(a) The facility must be installed according to accepted goo...
(b) The facility must have a reliable
(c) Dual transmitting equipment
(d) There must be a means for determining, from the ground, ...
(e) A facility intended for use as an
1970; Amdt. 171-16, 56 FR 65664, Dec. 17, 1991]
Section 171.11 Maintenance and operations
(a) The owner of the facility must establish an adequate mai...
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Section 171.11
(b) The owner must prepare, and obtain FAA approval of, an o...
(i) Location by latitude and longitude to the nearest second...
(v) Station identification call letters
(c) The owner shall make a ground
(d) If the owner desires to modify the
(e) The owner-s maintenance personnel must participate in in...
(f) Whenever it is required by the
(g) The owner shall provide all approved test instruments ne...
(h) The owner shall close the facility
1966]
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Section 171.13
Section 171.13
14 CFR Ch. I (1-1-19 Edition)
Subpart B - Nondirectional Radio
(a) Record of meter readings and adjustments (Form FAA-198)....
(b) Facility maintenance log (FAA Form
6003-1). This form is a permanent
(c) Radio equipment operation record
(d) [Reserved]
(e) VOR ground check error data
30, 1969; Amdt. 171-10, 40 FR 36110, Aug. 19,
1975]
Section 171.21
(a) This subpart sets forth minimum
(b) A nondirectional radio beacon
1966; Amdt. 171-7, 35 FR 12711, Aug. 11, 1970]
Section 171.23
(a) Each person who requests an IFR
Section 171.29.
(b) After the FAA inspects and evaluates the facility, it ad...
08:20 May 17, 2019
...

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Section 171.29
1970]
Section 171.25 Minimum requirements for approval.
(a) The following are the minimum
(b) If the applicant for approval
(a) of this section, the FAA commissions the facility as a p...
24, 1970]
Section 171.27 Performance requirements.
(a) The facility must meet the performance requirements set ...
3.4 -  (Annex 10 to the Convention on
(b) The facility must perform in accordance with recognized ...
(c) Ground inspection consists of an
(d) Flight tests to determine the facility-s adequacy for op...
1970]
Section 171.29
(a) The facility must be installed according to accepted goo...
(b) The facility must have a reliable
(c) Dual transmitting equipment may
(d) A facility intended for use as an
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...

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Section 171.31
14 CFR Ch. I (1-1-19 Edition)
17, 1991]
Section 171.31 Maintenance and operations
(a) The owner of the facility must establish an adequate mai...
(b) The owner must prepare, and obtain approval of, an opera...
(i) Location by latitude and longitude to the nearest second...
(v) Station identification call letters
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Section 171.43
(c) If the owner desires to modify the
(d) The owner-s maintenance personnel must participate in in...
(e) The owner shall provide a stock of
(f) The owner shall close the facility
1966]
Section 171.33 Reports.
(a) Record of meter readings and adjustments (Form FAA-198)....
(b) Facility maintenance log (FAA Form
6030-1). This form is a permanent
(c) Radio equipment operation record
19, 1975]
Subpart C - Instrument Landing
Section 171.41
1966; Amdt. 171-7, 35 FR 12711, Aug. 11, 1970]
Section 171.43
(a) Each person who requests an IFR
Section 171.49.
(b) After the FAA inspects and evaluates the facility, it ad...
08:20 May 17, 2019
...

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Section 171.45
14 CFR Ch. I (1-1-19 Edition)
1970]
Section 171.45 Minimum requirements for approval.
(a) The following are the minimum
(b) If the applicant for approval
(a) of this section, the FAA commissions the facility as a p...
24, 1970]
Section 171.47 Performance requirements.
(a) The Instrument Landing System
(b) Ground inspection consists of an
(c) The monitor is checked periodically, during the in-servi...
6750.1 and AF P 6750.2  - Maintenance Instructions for ILS L...
(d) Flight tests to determine the facility-s adequacy for op...
1973]
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Section 171.49
Section 171.51
(a) The facility must be of a permanent nature, located, con...
(b) The facility must have a reliable
(c) A determination by the Administrator as to whether a fac...
(d) There must be a means for determining, from the ground, ...
(e) The facility must have, or be supplemented by (depending...
(e)(1) and (e)(2) of this section may be
24, 1970; Amdt. 171-16, 56 FR 65664, Dec. 17,
1991]
Section 171.51 Maintenance and operations
(a) The owner of the facility must establish an adequate mai...
(b) The owner must prepare, and obtain approval of, an opera...
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Section 171.53
14 CFR Ch. I (1-1-19 Edition)
(i) Facility component locations with
(v) Station identification call letters
(c) The owner shall make a ground
(d) If the owner desires to modify the
(e)  - The owner-s maintenance personnel must participate in...
(f) Whenever it is required by the
(g) The owner shall provide FAA approved test instruments ne...
(h) The owner shall close the facility
1966]
Section 171.53
(a) Record of meter readings and adjustments (Form FAA-198)....
(b) Facility maintenance log (FormFAA
6030-1). This form is a permanent
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Section 171.75
(c) Radio equipment operation record
30, 1969; Amdt. 171-10, 40 FR 36110, Aug. 19,
1975]
Subpart D - True Lights
Section 171.61 Air
(a) Except as provided in paragraph
(b) of this section, each air navigation
(b) Paragraph (a) of this section does
Subpart E - General
Section 171.71 Materials incorporated by reference.
Section 171.73
25, 1989]
Section 171.75
(a) Requests for approval of facilities
(b) The following requests must be
25, 1989]
Subpart F - Simplified Directional
11, 1970, unless otherwise noted.
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Section 171.101
14 CFR Ch. I (1-1-19 Edition)
Section 171.101 Scope.
Section 171.103 Requests for IFR procedure.
(a) Each person who requests an IFR
Section 171.111, and is installed in accordance
(b) After the Federal Aviation Administration inspects and e...
Section 171.105 Minimum requirements for
(a) The following are the minimum
Section 171.113.
(b) If the applicant for approval
(a) of this section, the FAA commissions the facility as a p...
Section 171.107
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Section 171.109
Section 171.109 Performance requirements.
(a) The Simplified Directional Facility must perform in acco...
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Section 171.109
14 CFR Ch. I (1-1-19 Edition)
6Section. When an operational advantage can
(i) The channel must be on the same
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Section 171.111
(b) It must be shown during ground
(c) The monitor must be checked periodically during the in-s...
Section 171.111(j).
(d) The monitor system must provide
Section 171.111(j) occur, within the time periods specified ...
(e) Flight inspection to determine
(f) Flight inspection tolerances specified in section 217 of...
(i) Front course. (a) Course structure
(b) Point A to Point A-1 - linear decrease from not more tha...
(c) Point A-1 to Missed Approach
(d) Monitor tolerances: width Section17 percent of nominal; ...
18 miles from runway threshold to 4
(b) Monitor tolerances: width - Section17
1973]
Section 171.111 Ground standards and tolerances.
(a) Frequency. (1) The SDF must operate on odd tenths or odd...
1020 Hz within Section50 Hz.
90 Hz tone must not exceed 10 percent.
150 Hz tone must not exceed 10 percent.
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Section 171.113
14 CFR Ch. I (1-1-19 Edition)
(b) Power output. The normal carrier
Section 171.109(a)(6) when reduced by 3 dB to
(c) VSWR. (1) The VSWR of carrier
1.
(d) Insulation resistance. The insulation resistance of all ...
(e) Depth of modulation. (1) The depth
5 percent to 15 percent.
(f) Course sector width. The standard
(g) Course alignment. Course alignment
Section 171.109(a)(8).
(h) Back course alignment and width. If
(i) Clearance. Clearance must be as
(j) Monitor standards and tolerances.
(j)(6) of this section.
(k) Mean time between failures. The
(l) Course alignment stability. Drift of
1973]
Section 171.113 Installation requirements.
(a) The facility must be installed according to accepted goo...
...

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Section 171.115
(c) The facility must have a reliable
(d) A determination by the Federal
(e) There must be a means for determining, from the ground, ...
(f) The facility must have the following ground-air or landl...
(g) At those locations where two separate SDF facilities ser...
(h) At those locations where, in order
(i) Provisions for maintenance and
(j) Where an operational advantage
17, 1991]
Section 171.115 Maintenance and operations
(a) The owner of the facility shall establish an adequate ma...
(b) The SDF must be designed and
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Section 171.115
14 CFR Ch. I (1-1-19 Edition)
(c) The owner must prepare, and obtain approval of, and each...
(i) Facility component locations with
(v) Station identification call letters
(d) The owner shall make a ground
(e) If the owner desires to modify the
(f) The owner-s maintenance personnel shall participate in i...
(g) Whenever it is required by the
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Section 171.153
(h) The owner shall provide Federal
(i) The owner shall close the facility
Section 171.117
(a) Record of meter readings and adjustments (Form FAA-198)....
(b) Facility maintenance log (FAA
(c) Radio equipment operation record
19, 1975]
Subpart G - Distance Measuring
11, 1970, unless otherwise noted.
Section 171.151
Section 171.153
(a) Each person who requests an IFR
Section 171.159.
(b) After the Federal Aviation Administration inspects and e...
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Section 171.155
14 CFR Ch. I (1-1-19 Edition)
Section 171.155 Minimum requirements for
(a) The following are the minimum
Section 171.157.
Section 171.159.
Section 171.163, and must agree to allow the
(b) If the applicant for approval
(a) of this section, the Federal Aviation
Section 171.157 Performance requirements.
(a) The DME must meet the performance requirements set forth...
(b) It must be shown during ground
(c) The monitor must be checked periodically, during the in-...
Section 171.161(b).
(d) Flight inspection to determine
1985]
Section 171.159
(a) The facility must be installed according to accepted goo...
(b) The facility must have a reliable
(c) Dual transmitting equipment
(d) There must be a means for determining from the ground, t...
...

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Section 171.161
17, 1991]
Section 171.161 Maintenance and operations
(a) The owner of the facility shall establish an adequate ma...
(b) The owner must prepare and obtain Federal Aviation Admin...
(i) Location by latitude and longitude to the nearest second...
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Section 171.163
14 CFR Ch. I (1-1-19 Edition)
(v) Station identification call letters
(c) The owner shall make a monthly
(d) If the owner desires to modify the
(e) The owner-s maintenance personnel shall participate in i...
(f) Whenever it is required by the
(g) The owner shall provide a stock of
(h) The owner shall provide FAA-approved test instruments ne...
(i) The owner shall shut down the facility (i.e., cease radi...
Section 171.163 Reports.
(a) Record of meter readings and adjustments (Form FAA-198)....
(b) Facility maintenance log (FAA
(c) Radio equipment operation record
19, 1975]
Subpart H - VHF Marker Beacons
11, 1970, unless otherwise noted.
Section 171.201
(a) This subpart sets forth minimum
(b) [Reserved]
Section 171.203
...

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Section 171.207
Section 171.209.
(b) After the Federal Aviation Administration inspects and e...
Section 171.205 Minimum requirements for
(a) The following are the minimum
Section 171.207.
Section 171.209.
Section 171.213, and agree to allow the Federal
(b) If the applicant for approval
(a) of this section, the Federal Aviation
Section 171.207
(a) VHF Marker Beacons must meet
(b) The facility must perform in accordance with recognized ...
(c) It must be shown during ground
(d) Flight inspection to determine
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Section 171.209
14 CFR Ch. I (1-1-19 Edition)
Section 171.209 Installation requirements.
(a) The facility must be installed according to accepted goo...
(b) The facility must have a reliable
(c) Dual transmitting equipment may
(d) At facilities within or immediately adjacent to controll...
17, 1991]
Section 171.211 Maintenance and operations
(a) The owner of the facility shall establish an adequate ma...
(b) The owner must prepare, and obtain approval of, and each...
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Section 171.253
(i) Location by latitude and longitude to the nearest second...
(v) Station identification call letters
(c) If the owner desires to modify the
(d) The owner-s maintenance personnel shall participate in i...
(e) The owner shall provide a stock of
(f) The owner shall shut down the facility by ceasing radiat...
Section 171.213 Reports.
(a) Record of meter readings and adjustments (Form FAA-198)....
(b) Facility maintenance log (FAA
(c) Radio equipment operation record
19, 1975]
19, 1975, unless otherwise noted.
Section 171.251 Scope.
Section 171.253 Definitions.
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Section 171.253
14 CFR Ch. I (1-1-19 Edition)
3500 feet from the runway threshold.
171.263, 171.265, and 171.267.
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Section 171.255
Section 171.259
(a) Each person who requests an IFR
171.261, 171.263, 171.265, 171.267, and
171.269, and is installed in accordance
(b) After the FAA inspects and evaluates the ISMLS facility,...
Section 171.257 Minimum
(a) The following are the minimum
Section 171.271.
(b) If the applicant for approval
(a) of this section, the FAA approves
Section 171.259 Performance
(a) The ISMLS consists of the following basic components:
(b) The electronic ground equipments
(c) ISMLS ground equipment must
120 V nominal value, 102 V to 138 V (Section1 V).*
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Section 171.259
14 CFR Ch. I (1-1-19 Edition)
208 V nominal value, 177 V to 239 V (Section2 V).*
240 V nominal value, 204 V to 276 V (Section0.2
(d) The ISMLS must perform in accordance with the following ...
(a)(2) of this section which form part of
(e) The signal format and pairing of
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Section 171.261
Section 171.261 Localizer performance requirements.
(a) The localizer antenna system
(b) On runways where limited terrain
97 of this chapter is applicable.
(c) At locations where two separate
(d) The radiation from the localizer
(e) All horizontal angles employed in
(f) The ISMLS course sector angle
(g) The ISMLS localizer must operate
(h) The emission from the localizer
(i) The localizer must provide signals
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Section 171.261
14 CFR Ch. I (1-1-19 Edition)
1.750 of the established glide path angle
(q).
(j) Except as provided in paragraph
(k) of this section, in all parts of the
(i) of this section, the peak field
(k) The minimum peak field strength
100 feet (30 meters) above the horizontal plane containing t...
(l) Above 16 degrees, the ISMLS localizer signals must be re...
(m) Bends in the course line may not
0.031.
0.031 at ISMLS point  - A -  decreasing at linear rate to
0.015 at ISMLS point  - B - .
0.015.
(n) The amplitudes referred to in
(o) The radio frequency carrier must
(p) The mean course line must be adjusted
(q) The nominal displacement sensitivity within the half cou...
0.00145 DDM/meter (0.00044DDM/foot).
(r) The lateral displacement sensitivity must be adjusted an...
...

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Section 171.265
Section 171.263 Localizer automatic monitor
(a) The ISMLS localizer equipment
17 percent from nominal value for the
(b) Within 10 seconds of the occurrence of any of the condit...
Section 171.265 Glide path performance requirements.
(a) The glide slope antenna system
(b) The radiation from the glide path
90 Hz tone predominating above the
1.752q. As used in this section theta (q),
(c) The glide path equipment must be
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Section 171.265
14 CFR Ch. I (1-1-19 Edition)
(d) The downward extended straight
(e) The glide path equipment must
(f) The emission from the glide path
(g) The glide path equipment must
(h) To provide the coverage for glide
(i) Bends in the glide path may not
0.035.
(j) Guidance modulation must be impressed on the microwave c...
150 Hz tone base. The modulation impressed on each beam must...
(k) The nominal depth of modulation
(l) The following tolerances apply to
90 Hz tone may not exceed 10 percent.
150 Hz tone may not exceed 10 percent.
(m) At every half cycle of the combined 90 Hz and 150 Hz wav...
(n) The nominal angular displacement sensitivity must corres...
0.12q. The glide path angular displacement sensitivity must ...
(o) The DDM below the ISMLS glide
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...

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Section 171.271
1975]
Section 171.267 Glide path automatic monitor system.
(a) The ISMLS glide path equipment
0.075q.
0.0875 is realized to less than 0.75q from
(b) At glide path facilities where the
0.75q from the horizontal.
(c) Within 10 seconds of the occurrence of any of the condit...
Section 171.269 Marker beacon performance
Section 171.271 Installation requirements.
(a) The ISMLS facility must be permanent in nature, located,...
(a) and (c) of Section 171.261.
(b) The ISMLS facility must have a
(c) The ISMLS facility must have a
(d) There must be a means for determining, from the ground, ...
(e) The facility must have, or be supplemented by, ground-ai...
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Section 171.273
14 CFR Ch. I (1-1-19 Edition)
(f) Except where no operationally
17, 1991]
Section 171.273 Maintenance and operations
(a) The owner of the facility must establish an adequate mai...
(b) In the event of out-of-tolerance
(c) The owner must prepare, and obtain approval of, an opera...
(i) Facility component locations with
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Section 171.275
(v) Station identification call letters
(d) The owner or his maintenance
(e) Modifications to an ISMLS facility may be made only afte...
(f) The owner or the owner-s maintenance representative must...
(g) Whenever it is required by the
(h) The owner or his maintenance
(i) FAA approved test instruments
(j) The mean corrective maintenance
(k) The mean time between failures
(l) Inspection consists of an examination of the ISMLS equip...
(m) Monitoring of the ISMLS radiated signal must ensure a hi...
Section 171.275 Reports.
(a) Facility Equipment Performance and
198 data after any major repair, modernization, or retuning ...
(b) Facility Maintenance Log (FAA
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Section 171.301
14 CFR Ch. I (1-1-19 Edition)
(c) Technical Performance Record (FAA
Subpart J - Microwave Landing
Section 171.301 Scope.
Section 171.303 Definitions.
0.5 radian/sec and 10 radians/sec for elevation data.
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Section 171.307
Section 171.305
(a) Each person who requests an IFR
171.311, 171.313, 171.315, 171.317, 171.319,
(b) FAA inspects and evaluates the
Section 171.307 Minimum
(a) The following are the minimum
171.311, 171.313, 171.315, 171.317, 171.319,
Section 171.327 and agree to allow the FAA to
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Section 171.309
14 CFR Ch. I (1-1-19 Edition)
(b) [Reserved]
Section 171.309 General requirements.
(a) An MLS constructed to meet the
(a) (1), (2), (3), and (4) of this section
(b) In addition to the equipment required in paragraph (a) o...
(c) MLS ground equipment must be
240 volt, 60 Hz, 3-wire single phase AC
120 VAC nominal value - 102 V to 138 V (Section1
240 VAC nominal value - 204 V to 276 V (Section2
60 Hz AC line frequency - 57 Hz to 63 Hz (Section0.2
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Section 171.311
(a) Frequency assignment. The ground
300 KHz apart with center frequencies
1a. The operating radio frequencies of
(d) The transmitter frequencies of an
(e) The DME component listed in
(f) The marker beacon components
Section 171.311 Signal format requirements.
5031.0
...

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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
17Y ....................
17Z ....................
18X ....................
18W ...................
18Y ....................
18Z ....................
19X ....................
19Y ....................
19Z ....................
20X ....................
20W ...................
20Y ....................
20Z ....................
21X ....................
21Y ....................
21Z ....................
22X ....................
22W ...................
22Y ....................
...

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Section 171.311
29X ....................
29Y ....................
29Z ....................
30X ....................
30W ...................
30Y ....................
30Z ....................
31X ....................
31Y ....................
31Z ....................
32X ....................
32W ...................
32Y ....................
32Z ....................
33X ....................
33Y ....................
33Z ....................
34X ....................
34W ...................
34Y ....................
...

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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
47Z ....................
48X ....................
48W ...................
48Y ....................
48Z ....................
49X ....................
49Y ....................
49Z ....................
50X ....................
50W ...................
50Y ....................
50Z ....................
51X ....................
51Y ....................
51Z ....................
52X ....................
52W ...................
52Y ....................
52Z ....................
...

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Section 171.311
73X ....................
74X ....................
75X ....................
76X ....................
77X ....................
78X ....................
79X ....................
80X ....................
80Y ....................
80Z ....................
81X ....................
81Y ....................
81Z ....................
82X ....................
82Y ....................
82Z ....................
83X ....................
83Y ....................
83Z ....................
84X ....................
...

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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
97X ....................
97Y ....................
97Z ....................
98X ....................
98Y ....................
98Z ....................
99X ....................
99Y ....................
99Z ....................
100X ..................
100Y ..................
100Z ..................
101X ..................
101Y ..................
101Z ..................
102X ..................
102Y ..................
102Z ..................
103X ..................
...

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Section 171.311
118Z ..................
119X ..................
119Y ..................
119Z ..................
120X ..................
120Y ..................
121X ..................
121Y ..................
122X ..................
122Y ..................
123X ..................
123Y ..................
124X ..................
125X ..................
126X ..................
117.20
117.25
117.30
117.35
117.40
...

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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
(d) Radio frequency signal spectrum.
600 meters (2000 feet) does not exceed
(e) Synchronization. Synchronization
(f) Transmission rates. Angle guidance
13 Section0.5
39 Section1.5
6.5 Section0.25
1 39
1 The higher rate is recommended for azimuth scanning antenn...
2 Refer to Table 8a.
3 Refer to Table 8c.
(g) Transmission sequences. Sequences
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Section 171.311
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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
(h) TDM cycle. The time periods between angle transmission s...
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Section 171.311
08:20 May 17, 2019
(i) Function Formats (General). Each

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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
(i) Digital codes. The coding used in
1.600
1 Applies to all functions transmitted.
2 Reference time for receiver synchronization
Section 171.311(c)(1) and must be transmitted
171.317.
(i) Preamble. Must be in accordance
15.625 kHz
15.625 kHz
0.832
0.896
...

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Section 171.311
0.48 second. The duration between dots
15.625
1.600
1.664
2.048
2.176
2.304
2.432
2.560
8.760
9.060
...

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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
10 microseconds.
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Section 171.311
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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
15.625
1 The
13,000
9,000
3,500
9,000
6,800
4,800
3,350
4,800
1.600
2.752
2.880
3.100
...

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Section 171.311
15.615
5.900
(i) Preamble. Must be in accordance
(j) Basic Data word requirements. Basic
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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
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Section 171.311
100m
100m
...

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Section 171.311
14 CFR Ch. I (1-1-19 Edition)
359Section).
1Section 1Section
30)
...

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Section 171.311
0 = Function not radiated, or radiated in test mode (not rel...
1 = Function radiated in normal mode (for Back Azimuth,
0 DME transponder inoperative or not available.
0 Only IA mode or DME/N available.
0 FA mode, Standard 1, available.
1 FA mode, Standard 2, available.
4 seconds or less throughout the Back Azimuth coverage.
0 = Function not radiated, or radiated in test mode (not rel...
1 = Function radiated in normal mode.
5) using bits b1 through b6.
(k) Residual radiation. The residual
(l) Symmetrical scanning. The TO and
(m) Auxiliary data - (1) Addresses.
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Section 171.313
14 CFR Ch. I (1-1-19 Edition)
7c.
(i) Approach azimuth antenna offset
(v) Approach elevation antenna offset
(x) Back azimuth antenna offset shall
Section 171.313 Azimuth
(a) Approach azimuth coverage requirements. The approach azi...
1.
2.
3.
4.
5.
6.
7.
8.
08:20 May 17, 2019
...

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Section 171.313
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
...

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Section 171.313
14 CFR Ch. I (1-1-19 Edition)
0.01Section
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Section 171.313
40 degrees. When intervening obstacles
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Section 171.313
14 CFR Ch. I (1-1-19 Edition)
14 nm beyond Section40Section.
(i) A conical surface originating 2.5
(i)
(i) Transmitter power degradation
1Section
(b) Siting requirements. The approach
1.5Section
2Section
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(c) On runways where limited terrain
(d) Antenna coordinates. The scanning
(e) Approach azimuth accuracy. (1) The
3Section

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Section 171.313
(i) With distance along the runway
2.0 at the Section60 degree azimuth angles for
(f) Approach azimuth antenna characteristics are as follows:
1 Includes errors due to ground and airborne equipment and
2 The system PFN component must not exceed Section3.5 meters
3 The mean (bias) error component contributed by the
4 The system control motion noise must not exceed 0.1 degree...
5 The airborne subsystem angular errors are provided for inf...
(i) Dynamic sidelobe levels. With the
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Section 171.313
14 CFR Ch. I (1-1-19 Edition)
(g) Back azimuth coverage requirements. The back azimuth equ...
08:20 May 17, 2019

Page 69 -   PAGE

Section 171.313
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Section 171.313
14 CFR Ch. I (1-1-19 Edition)
(i) A horizontal surface 2.5 meters (8
(i) A conical surface originating 2.5
(i) Transmitter power degradation
(h) Back azimuth siting. The back azimuth equipment antenna ...
(i) Back azimuth antenna coordinates.
(j) Back azimuth accuracy. The requirements specified in Sec...
(k) Back azimuth antenna characteristics. The requirements s...
Section 171.313(f) apply.
(l) Scanning conventions. Figure 12
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Section 171.313
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Section 171.315
14 CFR Ch. I (1-1-19 Edition)
(m) False guidance. False courses
1, 2, 4 or 5.
171.313(g)(4) for a period of more than
(b) Radiation of the following
Section 171.315 Azimuth monitor system requirements.
(a) The approach azimuth or back
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Section 171.317
(c) The period during which erroneous guidance information i...
Section 171.317 Approach elevation performance requirements.
(a) Elevation coverage requirements.
(i) A surface which is the locus of
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Section 171.317
14 CFR Ch. I (1-1-19 Edition)
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Section 171.317
(i) Transmitter power degradation
(b) Elevation siting requirements. The
8260.34 (Glide Slope Threshold Crossing
8260.34.
(c) Antenna coordinates. The scanning
(d) Elevation accuracy. (1) The accuracies shown in Table 13...
(i) With distance along the runway
1Section0.050
1 Includes errors due to ground and airborne equipment and
2 The system PFN component must not exceed Section0.087 degr...
3 The mean (bias) error component contributed by the
4 The airborne subsystem angular errors are provided for inf...
(v) Maximum angular limits. the
(e) Elevation antenna characteristics
Section 171.309(d) without the use of internal
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Section 171.319
14 CFR Ch. I (1-1-19 Edition)
7.5Section. Multipath and drift effects are excluded from th...
(i) Dynamic sidelobe levels. With the
(f) False guidance. False courses
Section 171.319 Approach elevation monitor
(a) The monitor system must act to
Section 171.317(d) for a period of more than
100 feet.
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Section 171.323
(b) The period during which erroneous guidance information i...
Section 171.321 DME and marker beacon performance requiremen...
(a) The DME equipment must meet
10 to ICAO. It is available from ICAO,
(b) MLS marker beacon equipment
Section 171.323 Fabrication and installation
(a) The MLS facility must be permanent and must be located, ...
(b) The MLS facility components
(c) An approved monitoring capability must be provided which...
(d) The mean corrective maintenance
(e) The mean-time-between-failures
(f) The MLS facility must have a reliable source of suitable...
(g) The MLS facility must have a
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Section 171.325
14 CFR Ch. I (1-1-19 Edition)
(h) There must be a means for determining, from the ground, ...
(i) The facility must have, or be supplemented by, ground, a...
(j) The location of the phase center
(k) The latitude, longitude and mean
17, 1991]
Section 171.325 Maintenance and operations
(a) The owner of the facility must establish an adequate mai...
(b) In the event of out-of-tolerance
(c) The owner must prepare, and obtain approval of, an opera...
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Section 171.325
(i) Facility component locations with
(v) Station identification call letters
(d) The owner or his maintenance
(e) The only modifications permitted
(f) The owner or the owner-s maintenance representative must...
(g) The owner must ensure the availability of a sufficient s...
(h) FAA approved test instruments
(i) Inspection consists of an examination of the MLS equipme...
(j) Monitoring of the MLS radiated
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Section 171.327
Section 171.327
14 CFR Ch. I (1-1-19 Edition)
(a) Facility Equipment Performance Section
198 data after any major repair, modernization, or retuning ...
(b) Facility Maintenance Log (FAA
(c) Technical Performance Record (FAA
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