Federal Aviation Administration, DOT

Section 36.1581

for which application for a type certificate in the primary category is made,
and that was not previously certificated 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 certificate issued under this chapter,
(iii) Has not undergone an acoustical
change from its type design,
(iv) Has not previously been certificated under appendix H of this part,
and
(v) For which application for conversion 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

Section 36.1101 Noise measurement and evaluation.
For tiltrotors, the noise generated
must be measured and evaluated under
Appendix K of this part, or under an
approved equivalent procedure.

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Section 36.1501 Procedures, noise levels and
other information.
(a) All procedures, weights, configurations, and other information or data
employed for obtaining the certified
noise levels prescribed by this part, including 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 airplane (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]

SOURCE: 78 FR 1139, Jan. 8, 2013, unless otherwise noted.

Section 36.1103

Subpart O - Documentation, Operating Limitations and Information

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 compliance with the approved test procedures, and at the applicable noise
measurement points.

Subparts L-N [Reserved]

Section 36.1581 Manuals, markings, and placards.
(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 information, in addition to that specified
under Section 36.1583 of this part. If an Airplane Flight Manual or Rotorcraft
Flight Manual is not approved, the procedures and information must be furnished in any combination of approved
manual material, markings, and placards.
(1) For transport category large airplanes and jet airplanes, the noise level
information must be one value for each
flyover, lateral, and approach as defined and required by appendix B of
this part, along with the maximum
takeoff weight, maximum landing
weight, and configuration.
(2) For propeller driven small airplanes, the noise level information
must be one value for takeoff as defined and required by appendix G of
this part, along with the maximum
takeoff weight and configuration.

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