Section 36.801

14 CFR Ch. I (1-1-19 Edition)

Subpart G [Reserved]
Subpart H - Helicopters
SOURCE: Amdt. 36-14, 53 FR 3540, Feb. 5,
1988; 53 FR 7728, Mar. 10, 1988, unless otherwise noted.

Section 36.801 Noise measurement.
For primary, normal, transport, or
restricted category helicopters for
which certification is sought under appendix H of this part, the noise generated by the helicopter must be measured at the noise measuring points and
under the test conditions prescribed in
part B of appendix H of this part, or
under an FAA-approved equivalent procedure. For those primary, normal,
transport, and restricted category helicopters having a maximum certificated
takeoff weight of not more than 7,000
pounds for which compliance with appendix J of this part is demonstrated,
the noise generated by the helicopter
must be measured at the noise measuring point and under the test conditions prescribed in part B of appendix J
of this part, or an FAA-approved equivalent procedure.
[Doc. No. 26910, 57 FR 42854, Sept. 16, 1992, as
amended by Amdt. 36-25, 69 FR 31234, June 2,
2004]

Section 36.803 Noise evaluation and calculation.
The noise measurement data required
under Section 36.801 and obtained under appendix H of this part must be corrected
to the reference conditions contained
in part A of appendix H of this part,
and evaluated under the procedures of
part C of appendix H of this part, or an
FAA-approved equivalent procedure.
The noise measurement data required
under Section 36.801 and obtained under appendix J of this part must be corrected
to the reference conditions contained
in part A of appendix J of this part, and
evaluated under the procedures of part
C of appendix J of this part, or an FAAapproved equivalent procedure.

spaschal on DSK3GDR082PROD with CFR

[Doc. No. 26910, 57 FR 42854, Sept. 16, 1992]

Section 36.805 Noise limits.
(a) Compliance with the noise levels
prescribed under part D of appendix H
of this part, or under part D of appen-

dix J of this part, must be shown for
helicopters for which application for
issuance of a type certificate in the
primary, normal, transport, or restricted category is made on or after
March 6, 1986.
(b) For helicopters covered by this
section, except as provided in paragraph (c) or (d)(2) of this section, it
must be shown either:
(1) When an application for issuance
of a type certificate in the primary,
normal, transport, or restricted category is made on and after March 6,
1986 and before May 5, 2014, that the
noise levels of the helicopter are no
greater than the Stage 2 noise limits
prescribed in either section H36.305 of
appendix H of this part or section
J36.305 of appendix J of this part, as applicable; or
(2) When an application for issuance
of a type certificate in the primary,
normal, transport, or restricted category is made on or after May 5, 2014,
that the noise levels of the helicopter
are no greater than the Stage 3 noise
limits prescribed in either section
H36.305 of appendix H of this part, or
section J36.305 of appendix J of this
part, as applicable.
(c) For helicopters for which application for issuance of an original type
certificate in the primary, normal,
transport, or restricted category is
made on or after March 6, 1986, and
which the FAA finds to be the first
civil version of a helicopter that was
designed and constructed for, and accepted for operational use by, an
Armed Force of the United States or
the U.S. Coast Guard on or before
March 6, 1986, it must be shown that
the noise levels of the helicopter are no
greater than the noise limits for a
change in type design as specified in
section H36.305(a)(1)(ii) of appendix H of
this part for compliance demonstrated
under appendix H of this part, or as
specified in section J36.305 of appendix
J of this part for compliance demonstrated under appendix J of this
part. Subsequent civil versions of any
such helicopter must meet the Stage 2
requirements.
(d) Helicopters in the primary category:
(1) Except as provided in paragraph
(d)(2) of this section, for a helicopter

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