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821 

Federal Aviation Administration, DOT 

§ 171.31 

(2) At facilities within or imme-

diately adjacent to controlled airspace, 
there must be the ground-air commu-
nications required by paragraph (d)(1) 
of this section and reliable communica-
tions (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 sec-
tion 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 fac-
tor, the requirements of paragraphs (d) 
(1) and (2) of this section may be re-
duced 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 commu-
nicate with aircraft during the pro-
posed 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] 

§ 171.31 Maintenance and operations 

requirements. 

(a) The owner of the facility must es-

tablish an adequate maintenance sys-
tem and provide qualified maintenance 
personnel to maintain the facility at 
the level attained at the time it was 
commissioned. Each person who main-
tains 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 includ-
ing proficiency in maintenance proce-
dures and the use of specialized test 
equipment. 

(b) The owner must prepare, and ob-

tain approval of, an operations and 
maintenance manual that sets forth 
mandatory procedures for operations, 
preventive maintenance, and emer-
gency maintenance, including instruc-
tions 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 con-
trolled airspace over or near the facil-
ity, 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 main-

tenance flight inspection and servicing 
stating the frequency of servicing. 

(8) Air-ground communications, if 

provided, expressly written or incor-
porating appropriate sections of FAA 
manuals by reference. 

(9) Keeping of station logs and other 

technical reports, and the submission 
of reports required by § 171.33. 

(10) Monitoring of the facility, at 

least once each half hour, to assure 
continuous operation. 

(11) Inspections by United States per-

sonnel. 

(12) Names, addresses, and telephone 

numbers of persons to be notified in an 
emergency. 

(13) Shutdowns for routine mainte-

nance 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 con-

cerning the facility: 

(i) Location by latitude and lon-

gitude to the nearest second, and its 
position with respect to airport lay-
outs. 

(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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822 

14 CFR Ch. I (1–1–24 Edition) 

§ 171.33 

voice announcement, and the time 
spacing of the identification. 

(c) If the owner desires to modify the 

facility, he must submit the proposal 
to the FAA and meet applicable re-
quirements of the FCC. 

(d) The owner’s maintenance per-

sonnel must participate in initial in-
spections made by the FAA. In the case 
of subsequent inspections, the owner or 
his representative shall participate. 

(e) The owner shall provide a stock of 

spare parts, including vacuum tubes, of 
such a quantity to make possible the 
prompt replacement of components 
that fail or deteriorate in service. 

(f) The owner shall close the facility 

upon receiving two successive pilot re-
ports of its malfunctioning. 

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

§ 171.33 Reports. 

The owner of each facility to which 

this subpart applies shall make the fol-
lowing reports, at the times indicated, 
to the FAA Regional office for the area 
in which the facility is located: 

(a) 

Record of meter readings and adjust-

ments 

(

Form FAA–198

). To be filled out 

by the owner or his maintenance rep-
resentative with the equipment adjust-
ments 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 ap-
propriate Regional Office of the FAA. 
The owner shall revise the form after 
any major repair, modernization, or re-
turning, to reflect an accurate record 
of facility operation and adjustment. 

(b) 

Facility maintenance log 

(

FAA Form 

6030–1

). This form is a permanent 

record of all equipment malfunctioning 
met in maintaining the facility, in-
cluding information on the kind of 
work and adjustments made, equip-
ment 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 Re-
gional Office of the FAA. 

[Doc. No. 5034, 29 FR 11337, Aug. 6, 1964, as 
amended by Amdt. 171–10, 40 FR 36110, Aug. 
19, 1975] 

Subpart C—Instrument Landing 

System (ILS) Facilities 

§ 171.41 Scope. 

This subpart sets forth minimum re-

quirements for the approval and oper-
ation of non-Federal Instrument Land-
ing System (ILS) Facilities that are to 
be involved in the approval of instru-
ment flight rules and air traffic 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] 

§ 171.43 Requests for IFR procedure. 

(a) Each person who requests an IFR 

procedure based on an ILS 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 § 171.47 
and is installed in accordance with 
§ 171.49. 

(2) A proposed procedure for oper-

ating the facility. 

(3) A proposed maintenance organiza-

tion and a maintenance manual that 
meets the requirements of § 171.51. 

(4) A statement of intent 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 subparagraph. 

(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