885
Federal Aviation Administration, DOT
Pt. 33, App. B
(8) Information describing the order and
method of removing the engine and its parts
and replacing parts, with any necessary pre-
cautions to be taken. Instructions for proper
ground handling, crating, and shipping must
also be included.
(9) A list of the tools and equipment nec-
essary for maintenance and directions as to
their method of use.
(b)
Engine Overhaul Manual or Section. (1)
Disassembly information including the order
and method of disassembly for overhaul.
(2) Cleaning and inspection instructions
that cover the materials and apparatus to be
used and methods and precautions to be
taken during overhaul. Methods of overhaul
inspection must also be included.
(3) Details of all fits and clearances rel-
evant to overhaul.
(4) Details of repair methods for worn or
otherwise substandard parts and components
along with the information necessary to de-
termine when replacement is necessary.
(5) The order and method of assembly at
overhaul.
(6) Instructions for testing after overhaul.
(7) Instructions for storage preparation, in-
cluding any storage limits.
(8) A list of tools needed for overhaul.
(c)
ETOPS Requirements. For an applicant
seeking eligibility for an engine to be in-
stalled on an airplane approved for ETOPS,
the Instructions for Continued Airworthiness
must include procedures for engine condition
monitoring. The engine condition moni-
toring procedures must be able to determine
prior to flight, whether an engine is capable
of providing, within approved engine oper-
ating limits, maximum continuous power or
thrust, bleed air, and power extraction re-
quired for a relevant engine inoperative di-
version. For an engine to be installed on a
two-engine airplane approved for ETOPS, the
engine condition monitoring procedures
must be validated before ETOPS eligibility
is granted.
A33.4
airworthiness limitations section
The Instructions for Continued Airworthi-
ness must contain a section titled Airworthi-
ness Limitations that is segregated and
clearly distinguishable from the rest of the
manual.
(a) For all engines:
(1) The Airworthiness Limitations section
must set forth each mandatory replacement
time, inspection interval, and related proce-
dure required for type certification. If the In-
structions for Continued Airworthiness con-
sist of multiple documents, the section re-
quired under this paragraph must be in-
cluded in the principal manual.
(2) This section must contain a legible
statement in a prominent location that
reads: ‘‘The Airworthiness Limitations sec-
tion is FAA approved and specifies mainte-
nance required under §§ 43.16 and 91.403 of
Title 14 of the Code of Federal Regulations
unless an alternative program has been FAA
approved.’’
(b) For rotorcraft engines having 30-second
OEI and 2-minute OEI ratings:
(1) The Airworthiness Limitations section
must also prescribe the mandatory post-
flight inspections and maintenance actions
associated with any use of either 30-second
OEI or 2-minute OEI ratings.
(2) The applicant must validate the ade-
quacy of the inspections and maintenance
actions required under paragraph (b)(1) of
this section A33.4.
(3) The applicant must establish an in-serv-
ice engine evaluation program to ensure the
continued adequacy of the instructions for
mandatory post-flight inspections and main-
tenance actions prescribed under paragraph
(b)(1) of this section A33.4 and of the data for
§ 33.5(b)(4) pertaining to power availability.
The program must include service engine
tests or equivalent service engine test expe-
rience on engines of similar design and eval-
uations of service usage of the 30-second OEI
or 2-minute OEI ratings.
[Amdt. 33–9, 45 FR 60181, Sept. 11, 1980, as
amended by Amdt. 33–13, 54 FR 34330, Aug. 18,
1989; Amdt. 33–21, 72 FR 1878, Jan. 16, 2007;
Amdt. 33–25, 73 FR 48124, Aug. 18, 2008]
A
PPENDIX
B
TO
P
ART
33—C
ERTIFICATION
S
TANDARD
A
TMOSPHERIC
C
ON
-
CENTRATIONS OF
R
AIN AND
H
AIL
Figure B1, Table B1, Table B2, Table B3,
and Table B4 specify the atmospheric con-
centrations and size distributions of rain and
hail for establishing certification, in accord-
ance with the requirements of § 33.78(a)(2). In
conducting tests, normally by spraying liq-
uid water to simulate rain conditions and by
delivering hail fabricated from ice to simu-
late hail conditions, the use of water drop-
lets and hail having shapes, sizes and dis-
tributions of sizes other than those defined
in this appendix B, or the use of a single size
or shape for each water droplet or hail, can
be accepted, provided that applicant shows
that the substitution does not reduce the se-
verity of the test.
VerDate Mar<15>2010
10:12 Mar 18, 2014
Jkt 232046
PO 00000
Frm 00895
Fmt 8010
Sfmt 8002
Y:\SGML\232046.XXX
232046
pmangrum on DSK3VPTVN1PROD with CFR