[Federal Register: January 23, 2008 (Volume 73, Number 15)]
[Proposed Rules]
[Page 3884-3885]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr23ja08-11]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 23
[Docket No. CE283; Notice No. 23-08-01-SC]
Special Conditions: Embraer S.A.; Model EMB-500; Brakes--
Designation of Applicable Regulations
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed special conditions.
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SUMMARY: This notice proposes special conditions for the Embraer S.A.;
Model EMB-500 airplane. This airplane has a novel or unusual design
feature associated with the braking system. The applicable
airworthiness regulations do not contain adequate or appropriate safety
standards for this design feature. These proposed special conditions
contain the additional safety standards that the Administrator
considers necessary to harmonize with Brazil's Agencia Nacional de
Aviacao Civil (ANAC) and to maintain the same level of safety between
the ANAC Type Certificate and the U.S. Type Certificate.
DATES: Comments must be received on or before February 22, 2008.
ADDRESSES: Mail comments on this proposal in duplicate to: Federal
Aviation Administration, Regional Counsel, ACE-7, Attention: Rules
Docket, Docket No. CE283, 901 Locust, Room 506, Kansas City, Missouri
64106, or delivered in duplicate to the Regional Counsel at the above
address. Comments must be marked: CE283. Comments may be inspected in
the Rules Docket weekdays, except Federal holidays, between 7:30 a.m.
and 4 p.m.
FOR FURTHER INFORMATION CONTACT: Leslie B. Taylor, Federal Aviation
Administration, Aircraft Certification Service, Small Airplane
Directorate, ACE-111, 901 Locust, Room 301, Kansas City, Missouri, 816-
329-4134, fax 816-329-4090, e-mail at leslie.b.taylor@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
Interested persons are invited to participate in the making of
these proposed special conditions by submitting such written data,
views, or arguments as they may desire. Identify the regulatory docket
or notice number and submit them in duplicate to the address specified
above. All communications received on or before the closing date for
comments will be considered by the Administrator. The proposals
described in this notice may be changed in light of the comments
received. All comments received will be available in the Rules Docket
for examination by interested persons, both before and after the
closing date for comments. A report summarizing each substantive public
contact with FAA personnel concerning this rulemaking will be filed in
the docket. If you wish the FAA to acknowledge receipt of the comments
submitted in response to this notice, include with those comments a
self-addressed, stamped postcard on which the following statement is
made: ``Comments to Docket No. CE283.'' The postcard will be date
stamped and returned to the commenter.
Background
On October 5, 2005, Embraer S.A. applied for a type certificate for
their new Model EMB-500. The EMB-500 is a twin engine jet of a type
popularly referred to as a very light jet. The airplane is proposed to
be type certificated in the normal category of 14 CFR part 23 (and
comparable Brazilian requirements RBHA 23). The EMB-500 is
predominantly of metallic construction and is a conventionally
configured low-wing monoplane with a T-tail and tricycle landing gear.
The two Pratt and Whitney of Canada 1,600 pound thrust P&WC 617F/1
turbofan engines are aft fuselage mounted in typical business jet
fashion. The engines are full authority digital engine control (FADEC)
equipped.
The airplane's maximum takeoff weight is 9,965 pounds. The VMO/MMO
is 275 KIAS/M .70, with a maximum operating altitude of 41,000 feet.
Requested operations are day/night VFR/IFR, and icing operations
approval is requested.
The FAA considers it necessary to add an additional airworthiness
standard to adopt the commuter category requirement in 14 CFR
23.735(e), which the Administrator considers necessary to harmonize
with ANAC and to maintain the same level of safety between the ANAC
Type Certificate and the U.S. Type Certificate.
Type Certification Basis
Under the provisions of 14 CFR part 21, Sec. 21.17, Embraer S.A.
must show that the EMB-500 meets the applicable provisions of 14 CFR
part 23, as amended by Amendment 23-1 through Amendment 23-55 thereto.
If the Administrator finds that the applicable airworthiness
regulations (i.e., 14 CFR part 23) do not contain adequate or
appropriate safety standards for the EMB-500 because of a novel or
unusual design feature, special conditions are prescribed under the
provisions of Sec. 21.16.
In addition to the applicable airworthiness regulations and special
conditions, the EMB-500 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; and the FAA must issue a finding of
regulatory adequacy under section 611 of Public Law 92-574, the ``Noise
Control Act of 1972.''
Special conditions, as appropriate, as defined in Sec. 11.19, are
issued under Sec. 11.38 and 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 novel or
unusual design feature, the special conditions would also apply to the
other model under the provisions of Sec. 21.101(a)(1).
Novel or Unusual Design Features
The EMB-500 will incorporate the following novel or unusual design
features: The takeoff speed and takeoff distance for this jet airplane
make it necessary to adopt rejected takeoff requirements.
Applicability
As discussed above, these special conditions are applicable to the
EMB-500. If Embraer S.A. applies at a later date for a change to the
type certificate to include another model incorporating the same novel
or unusual design feature, the special conditions would apply to that
model as well under Sec. 21.101(a)(1).
Conclusion
This action affects only certain novel or unusual design features
on one model of airplane. It is not a rule of general applicability and
affects only the applicant who applied to the FAA for approval of these
features on the airplane.
[[Page 3885]]
List of Subjects in 14 CFR Part 23
Aircraft, Aviation safety, Signs and symbols.
Citation
The authority citation for these special conditions is as follows:
Authority: 49 U.S.C. 106(g), 40113 and 44701; 14 CFR 21.16 and
21.17; and 14 CFR 11.38 and 11.19.
The Proposed Special Conditions
Accordingly, the Federal Aviation Administration (FAA) proposes the
following special conditions as part of the type certification basis
for the Embraer S.A. Model EMB-500 airplanes. Brakes-Designation of
Applicable Regulations.
SC 23.735(e): Delete ``In addition, for commuter category
airplanes.''
The rejected takeoff brake kinetic energy capacity rating of each
main wheel brake assembly must not be less than the kinetic energy
absorption requirements determined under either of the following
methods.
(e)(1) The brake kinetic energy absorption requirements must be
based on a conservative rational analysis of the sequence of events
expected during a rejected takeoff at the design takeoff weight.
(e)(2) Instead of rational analysis, the kinetic energy absorption
requirements for each main wheel brake assembly may be derived from the
following formula--
KE = 0.0443WV\2\N
Where:
KE =Kinetic energy per wheel (ft.-lbs.);
W = Design takeoff weight (lbs.);
V = Ground speed, in knots, associated with the maximum value of
V1 selected in accordance with Sec. 23.51(c)(1);
N = Number of main wheels with brakes.
Issued in Kansas City, Missouri on January 15, 2008.
James E. Jackson,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-1077 Filed 1-22-08; 8:45 am]
BILLING CODE 4910-13-P