title-14-part-36-sec36-1581

777

Federal Aviation Administration, DOT

§ 36.1581

for which application for a type certifi-
cate in the primary category is made,
and that was not previously certifi-
cated under appendix H of this part,
compliance with appendix H of this
part must be shown.

(2) For a helicopter that:
(i) Has a normal or transport type

certificate issued under this chapter,

(ii) Has a standard airworthiness cer-

tificate issued under this chapter,

(iii) Has not undergone an acoustical

change from its type design,

(iv) Has not previously been certifi-

cated under appendix H of this part,
and

(v) For which application for conver-

sion to the primary category is made,
no further showing of compliance with
this part is required.

[Doc. No. 26910, 57 FR 42855, Sept. 16, 1992, as
amended by Amdt. 36–30, 79 FR 12045, Mar. 4,
2014]

Subparts I–J

[

Reserved

]

Subpart K—Tiltrotors

OURCE

: 78 FR 1139, Jan. 8, 2013, unless oth-

erwise noted.

§ 36.1101

Noise measurement and eval-

uation.

For tiltrotors, the noise generated

must be measured and evaluated under
Appendix K of this part, or under an
approved equivalent procedure.

§ 36.1103

Noise limits.

(a) Compliance with the maximum

noise levels prescribed in Appendix K
of this part must be shown for a
tiltrotor for which the application for
the issuance of a type certificate is
made on or after March 11, 2013.

(b) To demonstrate compliance with

this part, noise levels may not exceed
the noise limits listed in Appendix K,
Section K4, Noise Limits of this part.
Appendix K of this part (or an approved
equivalent procedure) must also be
used to evaluate and demonstrate com-
pliance with the approved test proce-
dures, and at the applicable noise
measurement points.

Subparts L–N

[

Reserved

]

Subpart O—Documentation, Op-

erating Limitations and Infor-
mation

§ 36.1501

Procedures, noise levels and

other information.

(a) All procedures, weights, configu-

rations, and other information or data
employed for obtaining the certified
noise levels prescribed by this part, in-
cluding equivalent procedures used for
flight, testing, and analysis, must be
developed and approved. Noise levels
achieved during type certification
must be included in the approved air-
plane (rotorcraft) flight manual.

(b) Where supplemental test data are

approved for modification or extension
of an existing flight data base, such as
acoustic data from engine static tests
used in the certification of acoustical
changes, the test procedures, physical
configuration, and other information
and procedures that are employed for
obtaining the supplemental data must
be developed and approved.

[Amdt. 36–15, 53 FR 16366, May 6, 1988]

§ 36.1581

Manuals, markings, and plac-

ards.

(a) If an Airplane Flight Manual or

Rotorcraft Flight Manual is approved,
the approved portion of the Airplane
Flight Manual or Rotorcraft Flight
Manual must contain the following in-
formation, in addition to that specified
under § 36.1583 of this part. If an Air-
plane Flight Manual or Rotorcraft
Flight Manual is not approved, the pro-
cedures and information must be fur-
nished in any combination of approved
manual material, markings, and plac-
ards.

(1) For transport category large air-

planes and jet airplanes, the noise level
information must be one value for each
flyover, lateral, and approach as de-
fined and required by appendix B of
this part, along with the maximum
takeoff weight, maximum landing
weight, and configuration.

(2) For propeller driven small air-

planes, the noise level information
must be one value for takeoff as de-
fined and required by appendix G of
this part, along with the maximum
takeoff weight and configuration.

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778

14 CFR Ch. I (1–1–24 Edition)

§ 36.1583

(3) For rotorcraft, the noise level in-

formation must be one value for each
takeoff, flyover, and approach as de-
fined and required by appendix H of
this part, or one value for flyover as
defined and required by appendix J of
this part, at the maximum takeoff
weight and configuration.

(b) If supplemental operational noise

level information is included in the ap-
proved portion of the Airplane Flight
Manual, it must be segregated, identi-
fied as information in addition to the
certificated noise levels, and clearly
distinguished from the information re-
quired under § 36.1581(a).

furnished near the listed noise levels:

No determination has been made by the Fed-
eral Aviation Administration that the noise
levels of this aircraft are or should be ac-
ceptable or unacceptable for operation at,
into, or out of, any airport.

(d) For transport category large air-

planes and jet airplanes, for which the
weight used in meeting the takeoff or
landing noise requirements of this part
is less than the maximum weight es-
tablished under the applicable air-
worthiness requirements, those lesser
weights must be furnished, as oper-
ating limitations in the operating limi-
tations section of the Airplane Flight
Manual. Further, the maximum takeoff
weight must not exceed the takeoff
weight that is most critical from a
takeoff noise standpoint.

(e) For propeller driven small air-

planes and for propeller-driven, com-
muter category airplanes for which the
weight used in meeting the flyover
noise requirements of this part is less
than the maximum weight by an
amount exceeding the amount of fuel
needed to conduct the test, that lesser
weight must be furnished, as an oper-
ating limitation, in the operating limi-
tations section of an approved Airplane
Flight Manual, in approved manual
material, or on an approved placard.

(f) For primary, normal, transport,

and restricted category helicopters, if
the weight used in meeting the takeoff,
flyover, or approach noise require-
ments of appendix H of this part, or the
weight used in meeting the flyover
noise requirement of appendix J of this
part, is less than the certificated max-
imum takeoff weight established under

either § 27.25(a) or § 29.25(a) of this chap-
ter, that lesser weight must be fur-
nished as an operating limitation in
the operating limitations section of the
Rotorcraft Flight Manual, in FAA-ap-
proved manual material, or on an FAA-
approved placard.

(g) Except as provided in paragraphs

(d), (e), and (f) of this section, no oper-
ating limitations are furnished under
this part.

[Doc. No. 13243, 40 FR 1035, Jan. 6, 1975]

DITORIAL

OTE

: For F

EDERAL

EGISTER

ci-

tations affecting § 36.1581, see the List of CFR
Sections Affected, which appears in the
Finding Aids section of the printed volume
and at

www.govinfo.gov.

§ 36.1583

Noncomplying agricultural

and fire fighting airplanes.

(a) This section applies to propeller-

driven, small airplanes that—

(1) Are designed for ‘‘agricultural air-

craft operations’’ (as defined in § 137.3
of this chapter, effective on January 1,
1966) or for dispensing fire fighting ma-
terials; and

(2) Have not been shown to comply

with the noise levels prescribed under
appendix F of this part—

(i) For which application is made for

the original issue of a standard air-
worthiness certificate and that do not
have any flight time before January 1,
1980; or

(ii) For which application is made for

an acoustical change approval, for air-
planes which have a standard air-
worthiness certificate after the change
in the type design, and that do not
have any flight time in the changed
configuration before January 1, 1980.

(b) For airplanes covered by this sec-

tion an operating limitation reading as
follows must be furnished in the man-
ner prescribed in § 36.1581:

Noise abatement: This airplane has not

been shown to comply with the noise limits
in FAR Part 36 and must be operated in ac-
cordance with the noise operating limitation
prescribed under FAR § 91.815.

[Amdt. 36–11, 45 FR 67066, Oct. 9, 1980. Redes-
ignated by Amdt. 36–14, 53 FR 3540, Feb. 5,
1988; Amdt. 36–18, 54 FR 34330, Aug. 18, 1989]