[Federal Register Volume 85, Number 109 (Friday, June 5, 2020)]
[Rules and Regulations]
[Pages 34493-34495]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-10421]
========================================================================
Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.
========================================================================
Federal Register / Vol. 85, No. 109 / Friday, June 5, 2020 / Rules
and Regulations
[[Page 34493]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 29
[Docket No. FAA-2020-0495; Special Conditions No. 29-049-SC]
Special Conditions: Leonardo S.p.A. (Leonardo), Model AW169; Use
of 30-Minute All Engines Operating (AEO) Power Rating
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final special conditions; request for comments.
-----------------------------------------------------------------------
SUMMARY: These special conditions are issued for the Leonardo Model
AW169 helicopter. This model helicopter will have the 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: The effective date of these special conditions is June 22, 2020.
The FAA must receive your comments by July 6, 2020.
ADDRESSES: Send comments identified by docket number FAA-2020-0495
using any of the following methods:
Federal eRegulations Portal: Go to http://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: The FAA will post all comments it receives, without
change, to http://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 http://DocketsInfo.dot.gov.
Docket: Background documents or comments received may be read at
http://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, DC, between 9 a.m., and 5 p.m., Monday through Friday,
except Federal holidays.
FOR FURTHER INFORMATION CONTACT: Rao Edupuganti, Regulations and Policy
Section, AIR-681, Rotorcraft Standards Branch, Policy & Innovation
Division, Aircraft Certification Service, 10101 Hillwood Parkway, Fort
Worth, Texas 76177; telephone (817) 222-4389; facsimile (817) 222-5961.
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 number Company and helicopter model
------------------------------------------------------------------------
No. 29-037-SC \1\...................... Airbus Helicopters Deutschland
GmbH Model MBB-BK117 D-2.
No. 29-034-SC \2\...................... AgustaWestland Model AW189.
No. 29-011-SC \3\...................... Sikorsky Aircraft Corporation
Model S-92A.
No. 29-004-SC \4\...................... Sikorsky Model S76C.
------------------------------------------------------------------------
\1\ 79 FR 78694, December, 31, 2014.
\2\ 79 FR 54889, September 15, 2014.
\3\ 67 FR 65871, October 29, 2002.
\4\ 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 interested
people to take part in this rulemaking by sending written comments,
data, or views. 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 will consider comments filed late if it is possible
to do so without incurring expense or delay. The FAA may change these
special conditions based on the comments received.
Background
On August 20, 2019, Leonardo applied for FAA validation of its
change to Type Certificate (TC) No. R00007RD for a 30-minute AEO power
rating for the Model AW169 helicopter. The Model AW169 is a Transport
Category, twin engine helicopter designed for civil operations. This
model has a 10 seat capacity and is type certificated as a Category A
rotorcraft under instrument flight rules for both single and dual pilot
configurations. It is powered by two Pratt & Whitney Canada Model
PW210A engines.
Leonardo proposes that the Model AW169 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. 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
[[Page 34494]]
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), Sec. 29.1305 (Powerplant
instruments), and Sec. 29.1521 (Powerplant limitations).
Type Certification Basis
Under 14 CFR 21.101, Leonardo must show that the Model AW169
helicopter, as changed, continues to meet the applicable provisions of
the regulations incorporated by reference in TC No. R00007RD or the
applicable regulations in effect on the date of application for the
change. The regulations incorporated by reference in the TC are
commonly referred to as the ``original type certification basis.'' The
regulations incorporated by reference in TC No. R00007RD are as
follows:
14 CFR part 21.29.
14 CFR part 29 Amendment 29-1 through 29-52, dated March 30,
2010.
14 CFR part 36 appendix H, Amendment 36-1 through 36-28, dated
March 11, 2013.
14 CFR part 29 Amendment 29-1 through 29-55 only for Hoist
Installation.
Equivalent Level of Safety Findings issued against:
(a) 14 CFR 29.807(c) Emergency Exits Access (documented in ELOS
Memo TC4266RD-R-C-01).
(b) 14 CFR 29.813(c) Passenger access to each emergency exit
(documented in ELOS Memo TC4266RD-R-C-02).
(c) 14 CFR 29.811(c) Emergency exit marking (documented in ELOS
Memo TC4266RD-R-C-03).
(d) 14 CFR 29 Subpart B, 29.1305, 29.1549 ``Engine Training
Mode'' (documented in ELOS Memo TC4266RD-R-F-01).
(e) 14 CFR 29.1545(b)(4) Airspeed indicator green arcs
(documented in ELOS Memo TC4266RD-R-F-02).
(f) 14 CFR 29.1305 and 29.1549 Power Index (documented in ELOS
Memo TC4266RD-R-F-06).
In addition to the applicable airworthiness regulations and special
conditions, the Leonardo Model AW169 helicopter must comply with the
fuel vent and exhaust emission requirements of 14 CFR part 34 and the
noise certification requirements of 14 CFR part 36.
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 Leonardo Model AW169 helicopter
because of a novel or unusual design feature. Therefore, special
conditions are prescribed under the provisions of 14 CFR 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. 21.101.
Special conditions are initially applicable to the model for which
they are issued. Should the TC for that model be amended later to
include any other model that incorporates the same 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 Leonardo Model AW169 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 (5-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:
(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. This new rating will allow the use of power above maximum
continuous power (MCP) for 30 minutes.
(d) Furthermore, the Model AW169 rotorcraft flight manual must
include limitations on the use of the 30-minute AEO power rating, which
states that continuous use above MCP takeoff power is limited to 30
minutes.
Applicability
These special conditions are applicable to the Leonardo Model AW169
helicopter. Should Leonardo apply at a later date for an amendment to
the TC to include another model incorporating the same novel or unusual
design feature, the special conditions would apply to that model as
well.
Conclusion
This action affects only certain novel or unusual design features
on one model of helicopters. 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(g), 40113, 44701-44702, 44704.
The Special Conditions
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 Leonardo Model AW169 helicopter.
Unless stated otherwise, all requirements in Sec. Sec. 29.1049,
29.1305, and 29.1521 remain unchanged.
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 5 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 5 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.
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.
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 must be limited to not more than 30 minutes per use. The use
of the 30-minute power must also be limited by:
(1) The maximum rotational speed, which may not be greater than--
[[Page 34495]]
(i) The maximum value determined by the rotor design; or
(ii) The maximum value demonstrated during the type tests;
(2) The maximum allowable turbine inlet or turbine outlet gas
temperature (for turbine engines);
(3) The maximum allowable power or torque for each engine,
considering the power input limitations of the transmission with AEO;
(4) The maximum allowable power or torque for each engine
considering the power input limitations of the transmission with one
engine inoperative;
(5) The time limit for the use of the power corresponding to the
limitations established in paragraphs (1) through (4) above; and
(6) The maximum allowable engine and transmission oil temperatures,
if the time limit established in paragraph (5) above exceeds 2 minutes.
Issued in Fort Worth, Texas, on May 5, 2020.
Jorge Castillo,
Manager, Rotorcraft Standards Branch, AIR-680, Policy & Innovation
Division, Aircraft Certification Service.
[FR Doc. 2020-10421 Filed 6-4-20; 8:45 am]
BILLING CODE 4910-13-P