Special Conditions: Airbus Helicopters Model H160B Helicopter; Use of 30-Minute All Engines Operating Power Rating, 20264-20266 [2021-07978]
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Federal Register / Vol. 86, No. 73 / Monday, April 19, 2021 / Rules and Regulations
considers FICUs with assets less than
$100 million to be small entities.40
As discussed previously, consistent
with the APA,41 the Board has
determined for good cause that general
notice and opportunity for public
comment is unnecessary, and therefore
the Board is not issuing a notice of
proposed rulemaking. Rules that are
exempt from notice and comment
procedures are also exempt from the
RFA requirements, including
conducting a regulatory flexibility
analysis, when among other things the
agency for good cause finds that notice
and public procedure are impracticable,
unnecessary, or contrary to the public
interest. Accordingly, the Board has
concluded that the RFA’s requirements
relating to initial and final regulatory
flexibility analysis do not apply.
Nevertheless, the Board seeks
comment on whether, and the extent to
which, the interim final rule would
affect a significant number of small
entities.
List of Subjects in 12 CFR Part 702
PART 702—CAPITAL ADEQUACY
1. The authority citation for part 702
continues to read as follows:
■
Authority: 12 U.S.C. 1766(a), 1790d.
2. In § 702.201, revise and republish
the introductory text of paragraph (b)(2)
to read as follows:
■
§ 702.201 Prompt corrective action for
‘‘adequately capitalized’’ credit unions.
*
*
*
*
*
(b) * * *
(2) Notwithstanding paragraph (a) of
this section, starting on April 19, 2021
and ending on March 31, 2022, for a
credit union that is adequately
capitalized:
*
*
*
*
*
■ 3. In § 702.206, revise and republish
paragraph (c)(4) to read as follows:
Net worth restoration plans.
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*
*
*
*
*
(c) * * *
(4) Notwithstanding paragraphs (c)(1),
(2), and (3) of this section, the Board
may permit a credit union that is
40 NCUA
IRPS 15–1. 80 FR 57512 (Sept. 24, 2015).
U.S.C. 553(b)(3)(B).
16:00 Apr 16, 2021
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 29
[Docket No. FAA–2021–0241; Special
Conditions No. 29–053–SC]
Special Conditions: Airbus Helicopters
Model H160B Helicopter; Use of 30Minute All Engines Operating Power
Rating
These special conditions are
issued for the Airbus Helicopters
(Airbus) Model H160B helicopter. This
model helicopter will have a novel or
unusual design feature associated with
a 30-minute all engines operating (AEO)
power rating. The applicable
airworthiness regulations do not contain
adequate or appropriate safety standards
for this design feature. These special
conditions contain the additional safety
standards that the Administrator
considers necessary to establish a level
of safety equivalent to that established
by the existing airworthiness standards.
DATES:
Effective date: The effective date of
these special conditions is May 4, 2021.
Comment due date: The FAA must
receive your comments by May 19,
2021.
ADDRESSES: Send comments identified
by docket number FAA–2021–0241
using any of the following methods:
• Federal eRegulations Portal: Go to
https://www.regulations.gov and follow
the online instructions for sending your
comments electronically.
• Mail: Send comments to Docket
Operations, M–30, U.S. Department of
Transportation (DOT), 1200 New Jersey
Avenue SE, Room W12–140, West
Building Ground Floor, Washington, DC
20590–0001.
• Hand Delivery of Courier: Take
comments to Docket Operations in
SUMMARY:
For the reasons set forth in the
preamble, the Board amends 12 CFR
part 702 as follows:
VerDate Sep<11>2014
BILLING CODE 7535–01–P
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final special conditions; request
for comments.
By the NCUA Board.
Melane Conyers-Ausbrooks,
Secretary of the Board.
41 5
[FR Doc. 2021–08027 Filed 4–16–21; 8:45 am]
AGENCY:
Credit unions, Reporting and
recordkeeping requirements.
§ 702.206
undercapitalized to submit to the
Regional Director a streamlined NWRP
plan attesting that its reduction in
capital was caused by share growth and
that such share growth is a temporary
condition due to the COVID–19
pandemic. A streamlined NWRP plan is
permitted between April 19, 2021 and
March 31, 2022.
*
*
*
*
*
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Room W12–140 of the West Building
Ground Floor at 1200 New Jersey
Avenue SE, Washington, DC, between 9
a.m., and 5 p.m., Monday through
Friday, except Federal holidays.
• Fax: Fax comments to Docket
Operations at 202–493–2251.
Privacy: Except for Confidential
Business Information (CBI) as described
in the following paragraph, and other
information as described in 14 CFR
1.35, the FAA will post all comments it
receives, without change, to https://
regulations.gov, including any personal
information the commenter provides.
Using the search function of the docket
website, anyone can find and read the
electronic form of all comments
received into any FAA docket,
including the name of the individual
sending the comment (or signing the
comment for an association, business,
labor union, etc.). DOT’s complete
Privacy Act Statement can be found in
the Federal Register published on April
11, 2000 (65 FR 19477–19478), as well
as at https://DocketsInfo.dot.gov.
Confidential Business Information:
CBI is commercial or financial
information that is both customarily and
actually treated as private by its owner.
Under the Freedom of Information Act
(FOIA) (5 U.S.C. 552), CBI is exempt
from public disclosure. If your
comments responsive to these special
conditions contain commercial or
financial information that is customarily
treated as private, that you actually treat
as private, and that is relevant or
responsive to these special conditions, it
is important that you clearly designate
the submitted comments as CBI. Please
mark each page of your submission
containing CBI as ‘‘PROPIN’’. The FAA
will treat such marked submissions as
confidential under the FOIA, and they
will not be placed in the public docket
of these special conditions. Submissions
containing CBI should be sent to Rao
Edupuganti, Dynamic System Section,
AIR–627, Technical Innovation Policy
Branch, Policy and Innovation Division,
Aircraft Certification Service, 10101
Hillwood Parkway, Fort Worth, TX
76177; telephone (817) 222–5110; email
Rao.Edupuganti@faa.gov. Any
commentary that the FAA receives
which is not specifically designated as
CBI will be placed in the public docket
for this rulemaking.
Docket: Background documents or
comments received may be read at
https://www.regulations.gov at any time.
Follow the online instructions for
accessing the docket, or go to the Docket
Operations in Room W12–140 of the
West Building Ground Floor at 1200
New Jersey Avenue SE, Washington,
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Federal Register / Vol. 86, No. 73 / Monday, April 19, 2021 / Rules and Regulations
DC, between 9 a.m., and 5 p.m., Monday
through Friday, except Federal holidays.
Rao
Edupuganti, Dynamic System Section,
AIR–627, Technical Innovation Policy
Branch, Policy and Innovation Division,
Aircraft Certification Service, 10101
Hillwood Parkway, Fort Worth, TX
76177; telephone (817) 222–5110; email
Rao.Edupuganti@faa.gov.
FOR FURTHER INFORMATION CONTACT:
SUPPLEMENTARY INFORMATION:
Reason for No Prior Notice and
Comment Before Adoption
The FAA has determined, in
accordance with 5 U.S.C. 553(b)(3)(B)
and 553(d)(3), that notice and
opportunity for prior public comment
hereon are unnecessary because
substantially identical special
conditions have been previously subject
to the public comment process in
several prior instances, such that the
FAA is satisfied that new comments are
unlikely. For the same reason, the FAA
finds that good cause exists for adopting
these special conditions upon issuance.
The FAA is requesting comments to
allow interested persons to submit
views that may not have been submitted
in response to the prior opportunities
for comment.
Special
conditions No.
Company and helicopter
model
No. 29–049–
SC 1.
No. 29–037–
SC 2.
Leonardo S.p.A., Model
AW169.
Airbus Helicopters Deutschland GmbH Model MBB–
BK117 D–2.
AgustaWestland Model
AW189.
Sikorsky Aircraft Corporation
Model S–92A.
Sikorsky Model S76C.
No. 29–034–
SC 3.
No. 29–011–
SC 4.
No. 29–004–
SC 5.
1 85
FR
FR
3 79 FR
4 67 FR
5 63 FR
2 79
34493,
78694,
54889,
65871,
32972,
June 5, 2020.
December 31, 2014.
September 15, 2014.
October 29, 2002.
June 17, 1998.
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Comments Invited
While the FAA did not precede these
special conditions with a notice of
proposed special conditions, the FAA
invites you to send any written relevant
data, views, or arguments about this
final special condition. Send your
comments to an address listed under
ADDRESSES. Include ‘‘Docket No. FAA–
2021–0241; Special Conditions No. 29–
053–SC’’ at the beginning of your
comments. The most helpful comments
reference a specific portion of the
special conditions, explain the reason
for any recommended change, and
include supporting data.
VerDate Sep<11>2014
16:00 Apr 16, 2021
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The FAA will consider all comments
received by the closing date for
comments. The FAA may change these
special conditions based on the
comments received.
Background
On November 7, 2014, Airbus applied
for FAA type certification validation of
the Model H160B helicopter. Airbus
applied for an extension on November
1, 2016, which is also the date of the
updated type certification basis.
The Airbus Model H160B is a 14 CFR
part 29 transport category, twin
turboshaft engine helicopter. The Airbus
Model H160B helicopter has a
maximum takeoff weight of 13,436 lbs.
It can hold a maximum of 12 passengers
and 2 crew on board. The Airbus Model
H160B helicopter is a new part 29
helicopter characterized by the
integration of composite materials in its
airframe construction, five main rotor
blades (i.e., blue edge technology), a
Fenestron tail rotor, and a Helionix
flight deck.
Airbus proposes that the Model
H160B helicopter include the use of a
novel and unusual design feature,
which is a 30-minute AEO power rating.
The 30-minute AEO power rating is
generally intended to be used for
hovering at increased power for search
and rescue missions. Title 14 CFR 1.1
defines ‘‘rated takeoff power’’ as limited
in use to no more than 5 minutes for
takeoff operation. The use of takeoff
power for 30 minutes will require
special airworthiness standards, known
as special conditions, to address the use
of this 30-minute AEO rating and its
effects on the rotorcraft. These special
conditions will add requirements to the
existing airworthiness standards in 14
CFR 29.1049 (Hovering cooling test
procedures), 29.1305 (Powerplant
instruments), and 29.1521 (Powerplant
limitations).
Type Certification Basis
Under the provisions of 14 CFR 21.17,
Airbus must show that the Model
H160B helicopter meets applicable
provisions of the regulations as listed
below. The Airbus Model H160B type
certification basis date is November 1,
2016.
1. 14 CFR part 29, Amendments 29–
1 through 29–55, dated January 31,
2012.
2. Equivalent Safety Findings:
(a) Sections 29.1305, 29.1309,
29.1549, Engine Training Mode.
(b) Sections 29.1305, 29.1321(a),
29.135l(d)(l), and 29.1435, Part Time
Display of Vehicle Parameters.
(c) Sections 29.1301, 29.1305,
29.1309, 29.1321, 29.1549, Substitution
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of Power Index Indicator for required
powerplant instruments.
(d) Sections 29.l545(b)(4), 29.l549(b),
Airspeed and Powerplant indication
green marking.
(e) Section 29.1555(c)(l), Usable fuel
capacity marking.
(f) Section 29.807(c), Passenger
emergency exits—other than side of
fuselage.
In addition, the certification basis
includes certain equivalent safety
findings that are not relevant to these
proposed special conditions.
In addition to the applicable
airworthiness regulations and special
conditions, the Airbus Model H160B
helicopter must comply with the noise
certification requirements of 14 CFR
part 36, and the FAA must issue a
finding of regulatory adequacy under
section 611 of Public Law 92–574, the
‘‘Noise Control Act of 1972.’’
Regulatory Basis for Special Conditions
The Administrator has determined
that the applicable airworthiness
regulations (that is, 14 CFR part 29) do
not contain adequate or appropriate
safety standards for the Airbus Model
H160B helicopter because of a novel or
unusual design feature. Therefore,
special conditions are prescribed under
the provisions of § 21.16.
The FAA issues special conditions, as
defined in § 11.19, in accordance with
§ 11.38, and they become part of the
type certification basis under
§ 21.17(a)(2).
Special conditions are initially
applicable to the model for which they
are issued. Should the type certificate
for that model be amended later to
include any other model that
incorporates the same or similar novel
or unusual design feature, the special
conditions would also apply to the other
model under § 21.101.
Novel or Unusual Design Features
The Airbus Model H160B helicopter
will incorporate the following novel or
unusual design feature:
A 30-minute AEO power rating.
Discussion
The following is a summary of the
final special conditions:
(a) In addition to the requirements of
§ 29.1049, the aircraft cooling effects
due to the use of the 30-minute AEO
power rating versus the Takeoff (fiveminute) rating must be accounted for in
the testing.
(b) In addition to the requirements of
§ 29.1305, since this new 30-minute
AEO power rating has a time limit
associated with its use, the pilot must
have the means to identify:
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Federal Register / Vol. 86, No. 73 / Monday, April 19, 2021 / Rules and Regulations
(1) When the rated engine power level
is achieved,
(2) when the event begins,
(3) when the time interval expires,
and
(4) when the cumulative time in one
flight is reached.
(c) In addition to the requirements of
§ 29.1521, this new 30-minute AEO
power rating must be limited to not
more than 30 minutes per use and not
more than a 50 minute cumulative time
per flight. This new rating will allow the
use of power above maximum
continuous power (MCP) up to 30
minutes.
(d) Furthermore, the rotorcraft flight
manual for the Airbus Model H160B
helicopter must include limitations on
the use of the 30-minute AEO power
rating, which state that continuous use
above MCP up to take-off power is
limited to 30 minutes.
Applicability
As discussed above, these special
conditions are applicable to the Airbus
Model H160B helicopter. Should Airbus
apply at a later date for a change to the
type certificate to include another
model incorporating the same novel or
unusual design feature, these special
conditions would apply to that model as
well.
Conclusion
This action affects only a certain
novel or unusual design feature on the
Airbus Model H160B helicopter. It is
not a rule of general applicability.
List of Subjects in 14 CFR Part 29
Aircraft, Aviation safety, Reporting
and recordkeeping requirements.
The authority citation for these
special conditions is as follows:
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Authority: 49 U.S.C. 106(f), 106(g), 40113,
44701–44702, 44704.
The Special Conditions
D Accordingly, pursuant to the
authority delegated to me by the
Administrator, the following special
conditions are issued as part of the type
certification basis for the Airbus
Helicopters Model H160B helicopter.
Unless stated otherwise, all
requirements in §§ 29.1049, 29.1305,
and 29.1521 remain unchanged.
1. Section 29.1049, Hovering cooling
test procedures. In addition to the
requirements of this section, for
rotorcraft with a 30-minute all engines
operating (AEO) power rating, the
hovering cooling provisions at the 30minute AEO power rating must be
shown—
a. At maximum weight or at the
greatest weight at which the rotorcraft
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16:00 Apr 16, 2021
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can hover (if less), at sea level, with the
power required to hover but not more
than the 30-minute power, in the
ground effect in still air, until at least
five minutes after the occurrence of the
highest temperature recorded, or until
the continuous time limit of the 30minute AEO power rating if the highest
temperature recorded is not stabilized
before.
b. At maximum weight and at the
altitude resulting in zero rate of climb
for this configuration, until at least five
minutes after the occurrence of the
highest temperature recorded, or until
the continuous time limit of the 30minute AEO power rating if the highest
temperature recorded is not stabilized
before.
2. Section 29.1305 Powerplant
instruments, at Amendment 29–40. In
addition to the requirements of this
section, for rotorcraft with a 30-minute
AEO power rating, a means must be
provided to alert the pilot when the
engine is at the 30-minute power level,
when the event begins, when the time
interval expires, and when the
cumulative time in one flight is reached.
3. Section 29.1521 Powerplant
limitations, at Amendment 29–41. In
addition to the requirements of this
section, the use of the 30-minute AEO
power rating must be limited to not
more than 30 minutes per use and not
more than a 50 minute cumulative time
per flight. The use of the 30-minute
power must also be limited by:
a. The maximum rotational speed
which may not be greater than—
(1) The maximum value determined
by the rotor design; or
(2) The maximum value shown during
the type tests;
b. The maximum allowable turbine
inlet or turbine outlet gas temperature.
c. The maximum allowable power or
torque for each engine, considering the
power input limitations of the
transmission with all engines operating;
d. The time limit for the use of the
power corresponding to the limitations
established in this section, subparagraphs a. through c. of this section;
and
e. The maximum allowable engine
and transmission oil temperatures.
Issued in Kansas City, Missouri on April
14, 2021.
Patrick R. Mullen,
Manager, Technical Innovation Policy
Branch, Policy and Innovation Division,
Aircraft Certification Service.
[FR Doc. 2021–07978 Filed 4–16–21; 8:45 am]
BILLING CODE 4910–13–P
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2021–0313; Project
Identifier MCAI–2021–00348–T; Amendment
39–21516; AD 2021–09–03]
RIN 2120–AA64
Airworthiness Directives; Airbus
Canada Limited Partnership (Type
Certificate Previously Held by C Series
Aircraft Limited Partnership (CSALP);
Bombardier, Inc.) Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; request for
comments.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for certain
Airbus Canada Limited Partnership
Model BD–500–1A10 and BD–500–
1A11 airplanes. This AD was prompted
by reports of the failure of emergency
locator transmitter (ELT) antennas. This
AD requires repetitive replacements of
the ELT antenna and repetitive
inspections for damage of the exterior
fuselage skin around the ELT antenna
attachment area, as specified in a
Transport Canada Civil Aviation (TCCA)
AD, which is incorporated by reference.
The FAA is issuing this AD to address
the unsafe condition on these products.
DATES: This AD becomes effective May
4, 2021.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of May 4, 2021.
The FAA must receive comments on
this AD by June 3, 2021.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue SE, Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal
holidays.
For material incorporated by reference
(IBR) in this AD, contact TCCA,
Transport Canada National Aircraft
Certification, 159 Cleopatra Drive,
Nepean, Ontario K1A 0N5, Canada;
telephone 888–663–3639; email ADSUMMARY:
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]]>Agencies
[Federal Register Volume 86, Number 73 (Monday, April 19, 2021)]
[Rules and Regulations]
[Pages 20264-20266]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-07978]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 29
[Docket No. FAA-2021-0241; Special Conditions No. 29-053-SC]
Special Conditions: Airbus Helicopters Model H160B Helicopter;
Use of 30-Minute All Engines Operating Power Rating
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final special conditions; request for comments.
-----------------------------------------------------------------------
SUMMARY: These special conditions are issued for the Airbus Helicopters
(Airbus) Model H160B helicopter. This model helicopter will have a
novel or unusual design feature associated with a 30-minute all engines
operating (AEO) power rating. The applicable airworthiness regulations
do not contain adequate or appropriate safety standards for this design
feature. These special conditions contain the additional safety
standards that the Administrator considers necessary to establish a
level of safety equivalent to that established by the existing
airworthiness standards.
DATES:
Effective date: The effective date of these special conditions is
May 4, 2021.
Comment due date: The FAA must receive your comments by May 19,
2021.
ADDRESSES: Send comments identified by docket number FAA-2021-0241
using any of the following methods:
Federal eRegulations Portal: Go to https://www.regulations.gov and follow the online instructions for sending your
comments electronically.
Mail: Send comments to Docket Operations, M-30, U.S.
Department of Transportation (DOT), 1200 New Jersey Avenue SE, Room
W12-140, West Building Ground Floor, Washington, DC 20590-0001.
Hand Delivery of Courier: Take comments to Docket
Operations in Room W12-140 of the West Building Ground Floor at 1200
New Jersey Avenue SE, Washington, DC, between 9 a.m., and 5 p.m.,
Monday through Friday, except Federal holidays.
Fax: Fax comments to Docket Operations at 202-493-2251.
Privacy: Except for Confidential Business Information (CBI) as
described in the following paragraph, and other information as
described in 14 CFR 1.35, the FAA will post all comments it receives,
without change, to https://regulations.gov, including any personal
information the commenter provides. Using the search function of the
docket website, anyone can find and read the electronic form of all
comments received into any FAA docket, including the name of the
individual sending the comment (or signing the comment for an
association, business, labor union, etc.). DOT's complete Privacy Act
Statement can be found in the Federal Register published on April 11,
2000 (65 FR 19477-19478), as well as at https://DocketsInfo.dot.gov.
Confidential Business Information: CBI is commercial or financial
information that is both customarily and actually treated as private by
its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552),
CBI is exempt from public disclosure. If your comments responsive to
these special conditions contain commercial or financial information
that is customarily treated as private, that you actually treat as
private, and that is relevant or responsive to these special
conditions, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN''. The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of these special conditions. Submissions containing CBI should
be sent to Rao Edupuganti, Dynamic System Section, AIR-627, Technical
Innovation Policy Branch, Policy and Innovation Division, Aircraft
Certification Service, 10101 Hillwood Parkway, Fort Worth, TX 76177;
telephone (817) 222-5110; email [email protected]. Any commentary
that the FAA receives which is not specifically designated as CBI will
be placed in the public docket for this rulemaking.
Docket: Background documents or comments received may be read at
https://www.regulations.gov at any time. Follow the online instructions
for accessing the docket, or go to the Docket Operations in Room W12-
140 of the West Building Ground Floor at 1200 New Jersey Avenue SE,
Washington,
[[Page 20265]]
DC, between 9 a.m., and 5 p.m., Monday through Friday, except Federal
holidays.
FOR FURTHER INFORMATION CONTACT: Rao Edupuganti, Dynamic System
Section, AIR-627, Technical Innovation Policy Branch, Policy and
Innovation Division, Aircraft Certification Service, 10101 Hillwood
Parkway, Fort Worth, TX 76177; telephone (817) 222-5110; email
[email protected].
SUPPLEMENTARY INFORMATION:
Reason for No Prior Notice and Comment Before Adoption
The FAA has determined, in accordance with 5 U.S.C. 553(b)(3)(B)
and 553(d)(3), that notice and opportunity for prior public comment
hereon are unnecessary because substantially identical special
conditions have been previously subject to the public comment process
in several prior instances, such that the FAA is satisfied that new
comments are unlikely. For the same reason, the FAA finds that good
cause exists for adopting these special conditions upon issuance. The
FAA is requesting comments to allow interested persons to submit views
that may not have been submitted in response to the prior opportunities
for comment.
------------------------------------------------------------------------
Special conditions No. Company and helicopter model
------------------------------------------------------------------------
No. 29-049-SC \1\......................... Leonardo S.p.A., Model
AW169.
No. 29-037-SC \2\......................... Airbus Helicopters
Deutschland GmbH Model MBB-
BK117 D-2.
No. 29-034-SC \3\......................... AgustaWestland Model AW189.
No. 29-011-SC \4\......................... Sikorsky Aircraft
Corporation Model S-92A.
No. 29-004-SC \5\......................... Sikorsky Model S76C.
------------------------------------------------------------------------
\1\ 85 FR 34493, June 5, 2020.
\2\ 79 FR 78694, December 31, 2014.
\3\ 79 FR 54889, September 15, 2014.
\4\ 67 FR 65871, October 29, 2002.
\5\ 63 FR 32972, June 17, 1998.
Comments Invited
While the FAA did not precede these special conditions with a
notice of proposed special conditions, the FAA invites you to send any
written relevant data, views, or arguments about this final special
condition. Send your comments to an address listed under ADDRESSES.
Include ``Docket No. FAA-2021-0241; Special Conditions No. 29-053-SC''
at the beginning of your comments. The most helpful comments reference
a specific portion of the special conditions, explain the reason for
any recommended change, and include supporting data.
The FAA will consider all comments received by the closing date for
comments. The FAA may change these special conditions based on the
comments received.
Background
On November 7, 2014, Airbus applied for FAA type certification
validation of the Model H160B helicopter. Airbus applied for an
extension on November 1, 2016, which is also the date of the updated
type certification basis.
The Airbus Model H160B is a 14 CFR part 29 transport category, twin
turboshaft engine helicopter. The Airbus Model H160B helicopter has a
maximum takeoff weight of 13,436 lbs. It can hold a maximum of 12
passengers and 2 crew on board. The Airbus Model H160B helicopter is a
new part 29 helicopter characterized by the integration of composite
materials in its airframe construction, five main rotor blades (i.e.,
blue edge technology), a Fenestron tail rotor, and a Helionix flight
deck.
Airbus proposes that the Model H160B helicopter include the use of
a novel and unusual design feature, which is a 30-minute AEO power
rating. The 30-minute AEO power rating is generally intended to be used
for hovering at increased power for search and rescue missions. Title
14 CFR 1.1 defines ``rated takeoff power'' as limited in use to no more
than 5 minutes for takeoff operation. The use of takeoff power for 30
minutes will require special airworthiness standards, known as special
conditions, to address the use of this 30-minute AEO rating and its
effects on the rotorcraft. These special conditions will add
requirements to the existing airworthiness standards in 14 CFR 29.1049
(Hovering cooling test procedures), 29.1305 (Powerplant instruments),
and 29.1521 (Powerplant limitations).
Type Certification Basis
Under the provisions of 14 CFR 21.17, Airbus must show that the
Model H160B helicopter meets applicable provisions of the regulations
as listed below. The Airbus Model H160B type certification basis date
is November 1, 2016.
1. 14 CFR part 29, Amendments 29-1 through 29-55, dated January 31,
2012.
2. Equivalent Safety Findings:
(a) Sections 29.1305, 29.1309, 29.1549, Engine Training Mode.
(b) Sections 29.1305, 29.1321(a), 29.135l(d)(l), and 29.1435, Part
Time Display of Vehicle Parameters.
(c) Sections 29.1301, 29.1305, 29.1309, 29.1321, 29.1549,
Substitution of Power Index Indicator for required powerplant
instruments.
(d) Sections 29.l545(b)(4), 29.l549(b), Airspeed and Powerplant
indication green marking.
(e) Section 29.1555(c)(l), Usable fuel capacity marking.
(f) Section 29.807(c), Passenger emergency exits--other than side
of fuselage.
In addition, the certification basis includes certain equivalent
safety findings that are not relevant to these proposed special
conditions.
In addition to the applicable airworthiness regulations and special
conditions, the Airbus Model H160B helicopter must comply with the
noise certification requirements of 14 CFR part 36, and the FAA must
issue a finding of regulatory adequacy under section 611 of Public Law
92-574, the ``Noise Control Act of 1972.''
Regulatory Basis for Special Conditions
The Administrator has determined that the applicable airworthiness
regulations (that is, 14 CFR part 29) do not contain adequate or
appropriate safety standards for the Airbus Model H160B helicopter
because of a novel or unusual design feature. Therefore, special
conditions are prescribed under the provisions of Sec. 21.16.
The FAA issues special conditions, as defined in Sec. 11.19, in
accordance with Sec. 11.38, and they become part of the type
certification basis under Sec. 21.17(a)(2).
Special conditions are initially applicable to the model for which
they are issued. Should the type certificate for that model be amended
later to include any other model that incorporates the same or similar
novel or unusual design feature, the special conditions would also
apply to the other model under Sec. 21.101.
Novel or Unusual Design Features
The Airbus Model H160B helicopter will incorporate the following
novel or unusual design feature:
A 30-minute AEO power rating.
Discussion
The following is a summary of the final special conditions:
(a) In addition to the requirements of Sec. 29.1049, the aircraft
cooling effects due to the use of the 30-minute AEO power rating versus
the Takeoff (five-minute) rating must be accounted for in the testing.
(b) In addition to the requirements of Sec. 29.1305, since this
new 30-minute AEO power rating has a time limit associated with its
use, the pilot must have the means to identify:
[[Page 20266]]
(1) When the rated engine power level is achieved,
(2) when the event begins,
(3) when the time interval expires, and
(4) when the cumulative time in one flight is reached.
(c) In addition to the requirements of Sec. 29.1521, this new 30-
minute AEO power rating must be limited to not more than 30 minutes per
use and not more than a 50 minute cumulative time per flight. This new
rating will allow the use of power above maximum continuous power (MCP)
up to 30 minutes.
(d) Furthermore, the rotorcraft flight manual for the Airbus Model
H160B helicopter must include limitations on the use of the 30-minute
AEO power rating, which state that continuous use above MCP up to take-
off power is limited to 30 minutes.
Applicability
As discussed above, these special conditions are applicable to the
Airbus Model H160B helicopter. Should Airbus apply at a later date for
a change to the type certificate to include another model incorporating
the same novel or unusual design feature, these special conditions
would apply to that model as well.
Conclusion
This action affects only a certain novel or unusual design feature
on the Airbus Model H160B helicopter. It is not a rule of general
applicability.
List of Subjects in 14 CFR Part 29
Aircraft, Aviation safety, Reporting and recordkeeping
requirements.
The authority citation for these special conditions is as follows:
Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704.
The Special Conditions
[ssquf] Accordingly, pursuant to the authority delegated to me by
the Administrator, the following special conditions are issued as part
of the type certification basis for the Airbus Helicopters Model H160B
helicopter. Unless stated otherwise, all requirements in Sec. Sec.
29.1049, 29.1305, and 29.1521 remain unchanged.
1. Section 29.1049, Hovering cooling test procedures. In addition
to the requirements of this section, for rotorcraft with a 30-minute
all engines operating (AEO) power rating, the hovering cooling
provisions at the 30-minute AEO power rating must be shown--
a. At maximum weight or at the greatest weight at which the
rotorcraft can hover (if less), at sea level, with the power required
to hover but not more than the 30-minute power, in the ground effect in
still air, until at least five minutes after the occurrence of the
highest temperature recorded, or until the continuous time limit of the
30-minute AEO power rating if the highest temperature recorded is not
stabilized before.
b. At maximum weight and at the altitude resulting in zero rate of
climb for this configuration, until at least five minutes after the
occurrence of the highest temperature recorded, or until the continuous
time limit of the 30-minute AEO power rating if the highest temperature
recorded is not stabilized before.
2. Section 29.1305 Powerplant instruments, at Amendment 29-40. In
addition to the requirements of this section, for rotorcraft with a 30-
minute AEO power rating, a means must be provided to alert the pilot
when the engine is at the 30-minute power level, when the event begins,
when the time interval expires, and when the cumulative time in one
flight is reached.
3. Section 29.1521 Powerplant limitations, at Amendment 29-41. In
addition to the requirements of this section, the use of the 30-minute
AEO power rating must be limited to not more than 30 minutes per use
and not more than a 50 minute cumulative time per flight. The use of
the 30-minute power must also be limited by:
a. The maximum rotational speed which may not be greater than--
(1) The maximum value determined by the rotor design; or
(2) The maximum value shown during the type tests;
b. The maximum allowable turbine inlet or turbine outlet gas
temperature.
c. The maximum allowable power or torque for each engine,
considering the power input limitations of the transmission with all
engines operating;
d. The time limit for the use of the power corresponding to the
limitations established in this section, sub-paragraphs a. through c.
of this section; and
e. The maximum allowable engine and transmission oil temperatures.
Issued in Kansas City, Missouri on April 14, 2021.
Patrick R. Mullen,
Manager, Technical Innovation Policy Branch, Policy and Innovation
Division, Aircraft Certification Service.
[FR Doc. 2021-07978 Filed 4-16-21; 8:45 am]
BILLING CODE 4910-13-P
