title-14-part-36-sec36-6

770

14 CFR Ch. I (1–1–24 Edition)

§ 36.6

these noise levels are or should be ac-
ceptable or unacceptable for operation
at, into, or out of, any airport.

[Doc. No. 9337, 34 FR 18364, Nov. 18, 1969, as
amended by Docket FAA–2015–3782, Amdt. 36–
31, 82 FR 46129, Oct. 4, 2017]

§ 36.6

Incorporation by reference.

(a) Certain material is incorporated

by reference into this part with the ap-
proval of the Director of the Federal
Register under 5 U.S.C. 552(a) and 1
CFR part 51. All approved material is
available for inspection at the loca-
tions in this paragraph (a) and may be
obtained from the sources detailed in
paragraphs (a)(1) through (12) of this
section.

(1) The U.S. Department of Transpor-

tation, Docket Operations, West Build-
ing Ground Floor, Room W12–140, 1200
New Jersey Avenue SE., Washington,
DC 20590.

(2) Federal Aviation Administration

New England Regional Headquarters,
12 New England Executive Park, Bur-
lington, MA 01801.

(3) Federal Aviation Administration

Eastern Region Headquarters, Federal
Building, John F. Kennedy Inter-
national Airport, Jamaica, NY 11430.

(4) Federal Aviation Administration

Southern Region Headquarters, 1701
Columbia Avenue, College Park, GA
30337.

(5) Federal Aviation Administration

Great Lakes Region Headquarters,
O’Hare Lake Office Center, 2300 East
Devon Avenue, Des Plaines, IL 60018.

(6) Federal Aviation Administration

Central Region Headquarters, Federal
Building, 601 East 12th Street, Kansas
City, MO 64106.

(7) Federal Aviation Administration

Southwest Region Headquarters, 2601
Meacham Boulevard, Fort Worth, TX
76137.

(8) Federal Aviation Administration

Northwest Mountain Region Head-
quarters, 1601 Lind Avenue SW,
Renton, WA 98055.

(9) Federal Aviation Administration

Western Pacific Region Headquarters,
15000 Aviation Boulevard, Hawthorne,
CA 92007.

(10) Federal Aviation Administration

Alaskan Region Headquarters, 222 West
7th Avenue, #14, Anchorage, AK 99513.

(11) Federal Aviation Administration

European Office Headquarters, 15 Rue
de la Loi, Third Floor, B–1040, Brussels,
Belgium.

(12) The National Archives and

Records Administration (NARA). For
information on the availability of this
information at NARA, call 202–741–6030
or go to

http://www.archives.gov/fed-

eral

register/code

federal

regulations/

ibr

locations.html.

(b) International Civil Aviation Orga-

nization (ICAO), Document Sales Unit,
999 University Street, Montreal, Que-
bec, H3C 5H7, Canada.

http://

www.icao.int/publications/Pages/de-
fault.aspx.

(1) International Standards and Rec-

ommended Practices, Annex 16 to the
Convention on International Civil
Aviation, Environmental Protection,
Volume I, Aircraft Noise, Third Edi-
tion, July 1993, Amendment 7 effective
March 21, 2002, IBR approved for
§ 36.1(f), and appendices A and B to part
36.

(2) International Standards and Rec-

ommended Practices, Annex 16 to the
Convention on International Civil
Aviation, Environmental Protection,
Volume I, Aircraft Noise, Seventh Edi-
tion, July 2014, Amendment 11–B, appli-
cable January 1, 2015, IBR approved for
§ 36.1(f) and appendices A and B to part
36.

Commission (IEC) 3 Rue de Varembe,
Case Postale 131, 1211 Geneva 20, Swit-
zerland,

http://www.iec.ch/standardsdev/

publications/?ref=menu.

(1) Publication No. 179, Precision

Level Sound Meters, (IEC 179) 1973, IBR
approved for appendix F to part 36.

(2) Publication No. 561, Electro-

acoustical Measuring Equipment for
Aircraft Noise Certification, first edi-
tion, 1976, (IEC 561), IBR approved for
appendices G and J to part 36.

(3) Publication No. 651, Sound Level

Meters, first edition, 1979, (IEC 651),
IBR approved for appendices G and J to
part 36.

(4) Publication No. 804, Integrating-

averaging Sound Level Meters, first
edition, 1985, (IEC 804), IBR approved
for appendix J to part 36.

(5) Publication No. 61094–3, Measure-

ment Microphones—Part 3: Primary
Method for Free-Field Calibration of

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Federal Aviation Administration, DOT

§ 36.7

Laboratory Standard Microphones by
the Reciprocity Technique, edition 1.0,
1995 (IEC 61094–3) IBR approved for ap-
pendix A to part 36.

(6) Publication No. 61094–4, Measure-

ment Microphones—Part 4: Specifica-
tions for Working Standard Micro-
phones, edition 1.0, 1995, (IEC 61094–4)
IBR approved for appendix A to part 36.

(7) Publication No. 61260,

Electroacoustics-Octave-Band and
Fractional-Octave-Band Filters, edi-
tion 1.0, 1995, (IEC 61260), IBR approved
for appendix A to part 36.

(8) Publication No, 60942,

Electroacoustics-Sound Calibrators,
edition 2.0, 1997, (IEC 60942) IBR ap-
proved for appendix A to part 36.

(d) Society of Automotive Engineers,

Inc. (SAE), 400 Commonwealth Drive,
Warrentown, PA 15096,

http://

www.sae.org/pubs/.

(1) ARP 866A, Standard Values at At-

mospheric Absorption as a Function of
Temperature and Humidity for use in
Evaluating Aircraft Flyover Noise,
March 15, 1975, IBR approved for appen-
dix H to part 36.

(2) [Reserved]

[Doc. No. FAA–2015–3782, Amdt. No. 36–31, 82
FR 46129, Oct. 4, 2017]

§ 36.7

Acoustical change: Transport

category large airplanes and jet air-
planes.

(a)

Applicability. This section applies

to all transport category large air-
planes and jet airplanes for which an
acoustical change approval is applied
for under § 21.93(b) of this chapter.

(b)

General requirements. Except as

otherwise specifically provided, for
each airplane covered by this section,
the acoustical change approval require-
ments are as follows:

(1) In showing compliance, noise lev-

els must be measured and evaluated in
accordance with the applicable proce-
dures and conditions prescribed in Ap-
pendix A of this part.

(2) Compliance with the noise limits

prescribed in section B36.5 of appendix
B must be shown in accordance with
the applicable provisions of sections
B36.7 and B36.8 of appendix B of this
part.

(c)

Stage 1 airplanes. For each Stage 1

airplane prior to the change in type de-
sign, in addition to the provisions of

paragraph (b) of this section, the fol-
lowing apply:

(1) If an airplane is a Stage 1 airplane

prior to the change in type design, it
may not, after the change in type de-
sign, exceed the noise levels created
prior to the change in type design. The
tradeoff provisions of section B36.6 of
appendix B of this part may not be
used to increase the Stage 1 noise lev-
els, unless the aircraft qualifies as a
Stage 2 airplane.

(2) In addition, for an airplane for

which application is made after Sep-
tember 17, 1971—

(i) There may be no reduction in

power or thrust below the highest air-
worthiness approved power or thrust,
during the tests conducted before and
after the change in type design; and

(ii) During the flyover and lateral

noise tests conducted before the change
in type design, the quietest airworthi-
ness approved configuration available
for the highest approved takeoff weight
must be used.

(d)

Stage 2 airplanes. If an airplane is

a Stage 2 airplane prior to the change
in type design, the following apply, in
addition to the provisions of paragraph
(b) of this section:

(1)

Airplanes with high bypass ratio jet

engines. For an airplane that has jet
engines with a bypass ratio of 2 or
more before a change in type design—

(i) The airplane, after the change in

type design, may not exceed either (A)
each Stage 3 noise limit by more than
3 EPNdB, or (B) each Stage 2 noise
limit, whichever is lower:

(ii) The tradeoff provisions of section

B36.6 of appendix B of this part may be
used in determining compliance under
this paragraph with respect to the
Stage 2 noise limit or to the Stage 3
plus 3 EPNdB noise limits, as applica-
ble; and

(iii) During the flyover and lateral

noise test conducted before the change
in type design, the quietest airworthi-
ness approved configuration available
for the highest approved takeoff weight
must be used.

(2)

Airplanes that do not have high by-

pass ratio jet engines. For an airplane
that does not have jet engines with a
bypass ratio of 2 or more before a
change in type design—