Special Conditions: Bombardier Inc., Models BD-500-1A10 and BD-500-1A11 Series Airplanes; Electronic Flight Control System: Control Surface Awareness and Mode Annunciation, 75511-75512 [2013-29685]
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75511
Proposed Rules
Federal Register
Vol. 78, No. 239
Thursday, December 12, 2013
This section of the FEDERAL REGISTER
contains notices to the public of the proposed
issuance of rules and regulations. The
purpose of these notices is to give interested
persons an opportunity to participate in the
rule making prior to the adoption of the final
rules.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No.FAA–2013–1041; Notice No. 25–
13–40–SC]
Special Conditions: Bombardier Inc.,
Models BD–500–1A10 and BD–500–
1A11 Series Airplanes; Electronic
Flight Control System: Control Surface
Awareness and Mode Annunciation
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed special
conditions.
AGENCY:
This action proposes special
conditions for the Bombardier Inc.
Models BD–500–1A10 and BD–500–
1A11 series airplanes. These airplanes
will have a novel or unusual design
feature associated with control surface
awareness and mode annunciation of
the electronic flight control 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 establish a level of safety
equivalent to that established by the
existing airworthiness standards.
DATES: Send your comments on or
before January 27, 2014.
ADDRESSES: Send comments identified
by docket number FAA–2013–1041
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 or Courier: Take
comments to Docket Operations in
Room W12–140 of the West Building
emcdonald on DSK67QTVN1PROD with PROPOSALS
SUMMARY:
VerDate Mar<15>2010
21:24 Dec 11, 2013
Jkt 232001
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 https://www.regulations.gov/,
including any personal information the
commenter provides. Using the search
function of the docket Web site, 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/.
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,
DC, between 9 a.m. and 5 p.m., Monday
through Friday, except federal holidays.
FOR FURTHER INFORMATION CONTACT: Joe
Jacobsen, FAA, Airplane and Flightcrew
Interface Branch, ANM–111, Transport
Airplane Directorate, Aircraft
Certification Service, 1601 Lind Avenue
SW., Renton, Washington 98057–3356;
telephone 425–227–2011; facsimile
425–227–1149.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite 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.
We will consider all comments we
receive on or before the closing date for
comments. We may change these special
conditions based on the comments we
receive.
Background
On December 10, 2009, Bombardier
Inc. applied for a type certificate for
their new Models BD–500–1A10 and
PO 00000
Frm 00001
Fmt 4702
Sfmt 4702
BD–500–1A11 series airplanes (hereafter
collectively referred to as ‘‘C-series.’’
The C-series airplanes are swept-wing
monoplanes with a pressurized cabin.
They share an identical supplier base
and significant common design
elements. The fuselage is aluminum
alloy material, blended double-bubble
fuselage, sized for nominal 5-abreast
seating. Each airplane’s powerplant
consists of two under wing Pratt and
Whitney PW1524G ultra-high bypass,
geared turbofan engines. Flight controls
are fly-by-wire flight with two passive/
uncoupled side sticks. Avionics
includes five landscape primary cockpit
displays. The dimension of the
airplanes encompass a wingspan of 115
feet; a height of 37.75 feet; and a length
of 114.75 feet for the Model BD–500–
1A10 and a length of 127 feet for the
Model BD–500–1A11. Passenger
capacity is designated as 110 for the
Model BD–500–1A10 and 125 for the
Model BD–500–1A11. Maximum takeoff
weight is 131,000 pounds for the Model
BD–500–1A10 and 144,000 pounds for
the Model BD–500–1A11. Maximum
takeoff thrust is 21,000 pounds for the
Model BD–500–1A10 and 23,300
pounds for the Model BD–500–1A11.
Range is 3,394 miles (5,463 kilometers)
for both models of airplanes. Maximum
operating altitude is 41,000 feet for both
model airplanes.
Type Certification Basis
Under the provisions of Title 14, Code
of Federal Regulations (CFR) 21.17,
Bombardier Inc. must show that the Cseries airplanes meet the applicable
provisions of 14 CFR part 25 as
amended by Amendments 25–1 through
25–129 thereto.
If the Administrator finds that the
applicable airworthiness regulations
(i.e., 14 CFR part 25) do not contain
adequate or appropriate safety standards
for the C-series airplanes because of a
novel or unusual design feature, special
conditions are prescribed under the
provisions of § 21.16.
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.
In addition to the applicable
airworthiness regulations and special
E:\FR\FM\12DEP1.SGM
12DEP1
75512
Federal Register / Vol. 78, No. 239 / Thursday, December 12, 2013 / Proposed Rules
conditions, the C-series airplanes 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.’’
The FAA issues special conditions, as
defined in 14 CFR 11.19, in accordance
with § 11.38, and they become part of
the type-certification basis under
§ 21.17(a)(2).
emcdonald on DSK67QTVN1PROD with PROPOSALS
Novel or Unusual Design Features
The C-series airplanes will
incorporate the following novel or
unusual design features: A fly-by-wire
electronic flight control system (EFCS)
and no direct coupling from the
flightdeck controller to the control
surface. As a result, the pilot is not
aware of the actual control surface
position as envisioned under current
airworthiness standards.
Discussion
These special conditions propose that
the flightcrew receive a suitable flight
control position annunciation when a
flight condition exists in which nearly
full surface authority (not crewcommanded) is being used. Suitability
of such a display must take into account
that some pilot-demanded maneuvers
(e.g., rapid roll) are necessarily
associated with intended full
performance, which may saturate the
surface. Therefore, simple alerting
systems function in both intended and
unexpected control-limiting situations.
As a result, they must be properly
balanced between providing necessary
crew awareness and being a potential
nuisance to the flightcrew. A monitoring
system that compares airplane motion
and surface deflection with the demand
of the pilot side stick controller could
help reduce nuisance alerting.
These special conditions also address
flight control system mode
annunciation. It proposes suitable mode
annunciation be provided to the
flightcrew for events that significantly
change the operating mode of the
system but do not merit the classic
‘‘failure warning.’’
These special conditions establish a
level of safety equivalent to that
provided by a conventional flight
control system and existing regulations.
certificate 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 two
model series of airplanes. It is not a rule
of general applicability.
List of Subjects in 14 CFR Part 25
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 Proposed Special Conditions
Accordingly, the Federal Aviation
Administration (FAA) proposes the
following special conditions as part of
the type certification basis for the
Bombardier Inc. Models BD–500–1A10
and BD–500–1A11 series airplanes.
1. Electronic Flight Control System:
Control Surface Awareness and Mode
Annunciation. In addition to the
requirements of §§ 25.143, 25.671, and
25.672, the following requirements
apply:
a. The system design must ensure that
the flightcrew is made suitably aware
whenever the primary control means
nears the limit of control authority.
Note: The term ‘‘suitably aware’’
indicates annunciations provided to the
flightcrew are appropriately balanced
between nuisance and that necessary for
crew awareness.
b. If the design of the flight control
system has multiple modes of operation,
a means must be provided to indicate to
the flightcrew any mode that
significantly changes or degrades the
normal handling or operational
characteristics of the airplane.
Issued in Renton, Washington, on
November 27, 2013.
John Piccola,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2013–29685 Filed 12–11–13; 8:45 am]
BILLING CODE 4910–13–P
Applicability
As discussed above, these special
conditions are applicable to the Models
BD–500–1A10 and BD–500–1A11 series
airplanes. Should Bombardier Inc. apply
at a later date for a change to the type
VerDate Mar<15>2010
21:24 Dec 11, 2013
Jkt 232001
PO 00000
Frm 00002
Fmt 4702
Sfmt 4702
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2013–1027; Directorate
Identifier 2013–NM–121–AD]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for certain
The Boeing Company Model 737–600,
–700, 700C, –800, –900, and –900ER
series airplanes. This proposed AD was
prompted by a report of installation of
incorrect wire support clamps within
the left and right Environmental Control
Systems (ECS) bay area during
production, which is a flammable
leakage zone. Use of incorrect wire
support clamps that are not fully
cushioned could allow electrical power
wiring to come in contact with the
exposed metal of the improper clamp,
causing a short circuit and subsequent
electrical arcing. This proposed AD
would require inspecting to identify the
part number of the wire support clamp,
and related investigative and corrective
actions if necessary. We are proposing
this AD to prevent electrical arcing and
a potential ignition source, which, in
combination with flammable fuel
vapors, could result in a fuel tank
explosion, and consequent loss of the
airplane.
SUMMARY:
We must receive comments on
this proposed AD by January 27, 2014.
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 above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this proposed AD, contact Boeing
Commercial Airplanes, Attention: Data
& Services Management, P.O. Box 3707,
MC 2H–65, Seattle, Washington 98124–
DATES:
E:\FR\FM\12DEP1.SGM
12DEP1
Agencies
[Federal Register Volume 78, Number 239 (Thursday, December 12, 2013)]
[Proposed Rules]
[Pages 75511-75512]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-29685]
========================================================================
Proposed Rules
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.
========================================================================
Federal Register / Vol. 78, No. 239 / Thursday, December 12, 2013 /
Proposed Rules
[[Page 75511]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No.FAA-2013-1041; Notice No. 25-13-40-SC]
Special Conditions: Bombardier Inc., Models BD-500-1A10 and BD-
500-1A11 Series Airplanes; Electronic Flight Control System: Control
Surface Awareness and Mode Annunciation
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed special conditions.
-----------------------------------------------------------------------
SUMMARY: This action proposes special conditions for the Bombardier
Inc. Models BD-500-1A10 and BD-500-1A11 series airplanes. These
airplanes will have a novel or unusual design feature associated with
control surface awareness and mode annunciation of the electronic
flight control 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
establish a level of safety equivalent to that established by the
existing airworthiness standards.
DATES: Send your comments on or before January 27, 2014.
ADDRESSES: Send comments identified by docket number FAA-2013-1041
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 or 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 https://www.regulations.gov/, including any personal
information the commenter provides. Using the search function of the
docket Web site, 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/.
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, DC, between 9 a.m. and 5 p.m., Monday through Friday,
except federal holidays.
FOR FURTHER INFORMATION CONTACT: Joe Jacobsen, FAA, Airplane and
Flightcrew Interface Branch, ANM-111, Transport Airplane Directorate,
Aircraft Certification Service, 1601 Lind Avenue SW., Renton,
Washington 98057-3356; telephone 425-227-2011; facsimile 425-227-1149.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite 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.
We will consider all comments we receive on or before the closing
date for comments. We may change these special conditions based on the
comments we receive.
Background
On December 10, 2009, Bombardier Inc. applied for a type
certificate for their new Models BD-500-1A10 and BD-500-1A11 series
airplanes (hereafter collectively referred to as ``C-series.'' The C-
series airplanes are swept-wing monoplanes with a pressurized cabin.
They share an identical supplier base and significant common design
elements. The fuselage is aluminum alloy material, blended double-
bubble fuselage, sized for nominal 5-abreast seating. Each airplane's
powerplant consists of two under wing Pratt and Whitney PW1524G ultra-
high bypass, geared turbofan engines. Flight controls are fly-by-wire
flight with two passive/uncoupled side sticks. Avionics includes five
landscape primary cockpit displays. The dimension of the airplanes
encompass a wingspan of 115 feet; a height of 37.75 feet; and a length
of 114.75 feet for the Model BD-500-1A10 and a length of 127 feet for
the Model BD-500-1A11. Passenger capacity is designated as 110 for the
Model BD-500-1A10 and 125 for the Model BD-500-1A11. Maximum takeoff
weight is 131,000 pounds for the Model BD-500-1A10 and 144,000 pounds
for the Model BD-500-1A11. Maximum takeoff thrust is 21,000 pounds for
the Model BD-500-1A10 and 23,300 pounds for the Model BD-500-1A11.
Range is 3,394 miles (5,463 kilometers) for both models of airplanes.
Maximum operating altitude is 41,000 feet for both model airplanes.
Type Certification Basis
Under the provisions of Title 14, Code of Federal Regulations (CFR)
21.17, Bombardier Inc. must show that the C-series airplanes meet the
applicable provisions of 14 CFR part 25 as amended by Amendments 25-1
through 25-129 thereto.
If the Administrator finds that the applicable airworthiness
regulations (i.e., 14 CFR part 25) do not contain adequate or
appropriate safety standards for the C-series airplanes because of a
novel or unusual design feature, special conditions are prescribed
under the provisions of Sec. 21.16.
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.
In addition to the applicable airworthiness regulations and special
[[Page 75512]]
conditions, the C-series airplanes 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.''
The FAA issues special conditions, as defined in 14 CFR 11.19, in
accordance with Sec. 11.38, and they become part of the type-
certification basis under Sec. 21.17(a)(2).
Novel or Unusual Design Features
The C-series airplanes will incorporate the following novel or
unusual design features: A fly-by-wire electronic flight control system
(EFCS) and no direct coupling from the flightdeck controller to the
control surface. As a result, the pilot is not aware of the actual
control surface position as envisioned under current airworthiness
standards.
Discussion
These special conditions propose that the flightcrew receive a
suitable flight control position annunciation when a flight condition
exists in which nearly full surface authority (not crew-commanded) is
being used. Suitability of such a display must take into account that
some pilot-demanded maneuvers (e.g., rapid roll) are necessarily
associated with intended full performance, which may saturate the
surface. Therefore, simple alerting systems function in both intended
and unexpected control-limiting situations. As a result, they must be
properly balanced between providing necessary crew awareness and being
a potential nuisance to the flightcrew. A monitoring system that
compares airplane motion and surface deflection with the demand of the
pilot side stick controller could help reduce nuisance alerting.
These special conditions also address flight control system mode
annunciation. It proposes suitable mode annunciation be provided to the
flightcrew for events that significantly change the operating mode of
the system but do not merit the classic ``failure warning.''
These special conditions establish a level of safety equivalent to
that provided by a conventional flight control system and existing
regulations.
Applicability
As discussed above, these special conditions are applicable to the
Models BD-500-1A10 and BD-500-1A11 series airplanes. Should Bombardier
Inc. apply 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.
Conclusion
This action affects only certain novel or unusual design features
on two model series of airplanes. It is not a rule of general
applicability.
List of Subjects in 14 CFR Part 25
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 Proposed Special Conditions
Accordingly, the Federal Aviation Administration (FAA) proposes the
following special conditions as part of the type certification basis
for the Bombardier Inc. Models BD-500-1A10 and BD-500-1A11 series
airplanes.
1. Electronic Flight Control System: Control Surface Awareness and
Mode Annunciation. In addition to the requirements of Sec. Sec.
25.143, 25.671, and 25.672, the following requirements apply:
a. The system design must ensure that the flightcrew is made
suitably aware whenever the primary control means nears the limit of
control authority.
Note: The term ``suitably aware'' indicates annunciations provided
to the flightcrew are appropriately balanced between nuisance and that
necessary for crew awareness.
b. If the design of the flight control system has multiple modes of
operation, a means must be provided to indicate to the flightcrew any
mode that significantly changes or degrades the normal handling or
operational characteristics of the airplane.
Issued in Renton, Washington, on November 27, 2013.
John Piccola,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2013-29685 Filed 12-11-13; 8:45 am]
BILLING CODE 4910-13-P