916
14 CFR Ch. I (1–1–14 Edition)
§ 36.501
Subpart E [Reserved]
Subpart F—Propeller Driven Small
Airplanes and Propeller-Driv-
en, Commuter Category Air-
planes
§ 36.501
Noise limits.
(a) Compliance with this subpart
must be shown for—
(1) Propeller driven small airplanes
for which application for the issuance
of a new, amended, or supplemental
type certificate in the normal, utility,
acrobatic, transport, or restricted cat-
egory is made on or after October 10,
1973; and propeller-driven, commuter
category airplanes for which applica-
tion for the issuance of a type certifi-
cate in the commuter category is made
on or after January 15, 1987.
(2) Propeller driven small airplanes
and propeller-driven, commuter cat-
egory airplanes for which application is
made for the original issuance of a
standard airworthiness certificate or
restricted category airworthiness cer-
tificate, and that have not had any
flight time before January 1, 1980 (re-
gardless of date of application).
(3) Airplanes in the primary cat-
egory:
(i) Except as provided in paragraph
(a)(3)(ii) of this section, for an airplane
for which application for a type certifi-
cate in the primary category is made,
and that was not previously certifi-
cated under appendix F of this part,
compliance with appendix G of this
part must be shown.
(ii) For an airplane in the normal,
utility or acrobatic category that (A)
has a type certificate issued under this
chapter, (B) has a standard airworthi-
ness certificate issued under this chap-
ter, (C) has not undergone an acous-
tical change from its type design, (D)
has not previously been certificated
under appendix F or G of this part, and
(E) for which application for conver-
sion to the primary category is made,
no further showing of compliance with
this part is required.
(b) For aircraft covered by this sub-
part for which certification tests are
completed before December 22, 1988,
compliance must be shown with noise
levels as measured and prescribed in
Parts B and C of appendix F, or under
approved equivalent procedures. It
must be shown that the noise level of
the airplane is no greater than the ap-
plicable limit set in Part D of appendix
F.
(c) For aircraft covered by this sub-
part for which certification tests are
not completed before December 22, 1988,
compliance must be shown with noise
levels as measured and prescribed in
Parts B and C of appendix G, or under
approved equivalent procedures. It
must be shown that the noise level of
the airplane is no greater than the ap-
plicable limits set in Part D of appen-
dix G.
[Doc. No. 13243, 40 FR 1034, Jan. 6, 1975, as
amended by Amdt. 36–13, 52 FR 1836, Jan. 15,
1987; Amdt. 36–16, 53 FR 47400, Nov. 22, 1988;
Amdt. 36–19, 57 FR 41369, Sept. 9, 1992]
Subpart G [Reserved]
Subpart H—Helicopters
S
OURCE
: Amdt. 36–14, 53 FR 3540, Feb. 5,
1988; 53 FR 7728, Mar. 10, 1988, unless other-
wise noted.
§ 36.801
Noise measurement.
For primary, normal, transport, or
restricted category helicopters for
which certification is sought under ap-
pendix H of this part, the noise gen-
erated by the helicopter must be meas-
ured 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 pro-
cedure. For those primary, normal,
transport, and restricted category heli-
copters having a maximum certificated
takeoff weight of not more than 7,000
pounds for which compliance with ap-
pendix J of this part is demonstrated,
the noise generated by the helicopter
must be measured at the noise meas-
uring point and under the test condi-
tions prescribed in part B of appendix J
of this part, or an FAA-approved equiv-
alent procedure.
[Doc. No. 26910, 57 FR 42854, Sept. 16, 1992, as
amended by Amdt. 36–25, 69 FR 31234, June 2,
2004]
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