917
Federal Aviation Administration, DOT
§ 36.1103
§ 36.803
Noise evaluation and calcula-
tion.
The noise measurement data required
under § 36.801 and obtained under ap-
pendix 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 § 36.801 and obtained under ap-
pendix 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 FAA-
approved equivalent procedure.
[Doc. No. 26910, 57 FR 42854, Sept. 16, 1992]
§ 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 re-
stricted category is made on or after
March 6, 1986.
(b) For helicopters covered by this
section, except as provided in para-
graph (c) or (d)(2) of this section, it
must be shown either:
(1) For those helicopters dem-
onstrating compliance under appendix
H of this part, the noise levels of the
helicopter are no greater than the ap-
plicable limits prescribed under section
H36.305 of appendix H of this part, or
(2) For helicopters demonstrating
compliance under appendix J of this
part, the noise level of the helicopter is
no greater than the limit prescribed
under section J36.305 of appendix J of
this part.
(c) For helicopters for which applica-
tion 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 ac-
cepted 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 dem-
onstrated under appendix J of this
part. Subsequent civil versions of any
such helicopter must meet the Stage 2
requirements.
(d) Helicopters in the primary cat-
egory:
(1) Except as provided in paragraph
(d)(2) of this section, for a helicopter
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]
Subparts I–J [Reserved]
Subpart K—Tiltrotors
S
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
VerDate Mar<15>2010
10:12 Mar 18, 2014
Jkt 232046
PO 00000
Frm 00927
Fmt 8010
Sfmt 8010
Y:\SGML\232046.XXX
232046
pmangrum on DSK3VPTVN1PROD with CFR