Special Conditions: Dassault Aviation Falcon Model 6X Airplane; Design Speed Definition, 47332-47334 [2022-16558]
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<![CDATA[
47332
§ 220.8
Federal Register / Vol. 87, No. 148 / Wednesday, August 3, 2022 / Rules and Regulations
[Corrected]
Text—Breakfast Meal Pattern is
corrected to read as follows:
2. On page 7007, in § 220.8(c), the
Table 1 to Paragraph (c) Introductory
■
Breakfast meal pattern
Grades K–5
Grades 6–8
Grades 9–12
Amount of Food a per Week
(minimum per day)
Food components
Fruits (cups) b c .............................................................................................................................
Vegetables (cups) b c ....................................................................................................................
Dark green ............................................................................................................................
Red/Orange ..........................................................................................................................
Beans and peas (legumes) ..................................................................................................
Starchy ..................................................................................................................................
Other .....................................................................................................................................
Grains (oz eq) d ............................................................................................................................
Meats/Meat Alternates (oz eq) e ..................................................................................................
Fluid milk (cups) f .........................................................................................................................
5 (1)
0
0
0
0
0
0
7–10 (1)
0
5 (1)
5 (1)
0
0
0
0
0
0
8–10 (1)
0
5 (1)
5 (1)
0
0
0
0
0
0
9–10 (2)
0
5 (1)
400–550
<10
≤600
450–600
<10
≤640
Other Specifications: Daily Amount Based on the Average for a 5-Day Week
Min-max calories (kcal) g h ...........................................................................................................
Saturated fat (% of total calories) h .............................................................................................
Sodium Target 1 (mg) h ...............................................................................................................
Trans fat h ....................................................................................................................................
350–500
<10
≤540
Nutrition label or manufacturer specifications
must indicate zero grams of trans fat per serving.
a Food
items included in each group and subgroup and amount equivalents. Minimum creditable serving is 1⁄8 cup.
cup of dried fruit counts as 1⁄2 cup of fruit; 1 cup of leafy greens counts as 1⁄2 cup of vegetables. No more than half of the fruit or
vegetable offerings may be in the form of juice. All juice must be 100% full-strength.
c Schools must offer 1 cup of fruit daily and 5 cups of fruit weekly. Vegetables may be substituted for fruits, but the first two cups per week of
any such substitution must be from the dark green, red/orange, beans/peas (legumes), or ‘‘Other vegetables’’ subgroups, as defined in
§ 210.10(c)(2)(iii) of this chapter.
d At least 80 percent of grains offered weekly must meet the whole grain-rich criteria specified in FNS guidance, and the remaining grain items
offered must be enriched. Schools may substitute 1 oz. eq. of meat/meat alternate for 1 oz. eq. of grains after the minimum daily grains requirement is met.
e There is no meat/meat alternate requirement.
f All fluid milk must be fat-free (skim) or low-fat (1 percent fat or less). Milk may be unflavored or flavored, provided that unflavored milk is offered at each meal service.
g The average daily calories for a 5-day school week must be within the range (at least the minimum and no more than the maximum values).
h Discretionary sources of calories (solid fats and added sugars) may be added to the meal pattern if within the specifications for calories,
saturated fat, trans fat, and sodium. Foods of minimal nutritional value and fluid milk with fat content greater than 1 percent milk fat are not
allowed.
b One-quarter
Cynthia Long,
Administrator, Food and Nutrition Service.
[FR Doc. 2022–16466 Filed 8–2–22; 8:45 am]
BILLING CODE 3410–30–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No. FAA–2021–1193; Special
Conditions No. 25–798–SC]
lotter on DSK11XQN23PROD with RULES1
Special Conditions: Dassault Aviation
Falcon Model 6X Airplane; Design
Speed Definition
This airplane will have a novel or
unusual design feature when compared
to the state of technology envisioned in
the airworthiness standards for
transport category airplanes. This design
feature is a high speed protection
system that limits nose-down pilot
authority at speeds above VC/MC. 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.
AGENCY:
Federal Aviation
Administration (FAA), DOT.
ACTION: Final special conditions; request
for comments.
DATES:
These special conditions are
issued for the Dassault Aviation
(Dassault) Model Falcon 6X Airplane.
ADDRESSES:
SUMMARY:
VerDate Sep<11>2014
17:44 Aug 02, 2022
Jkt 256001
This action is effective on
Dassault on August 3, 2022. Send
comments on or before September 19,
2022.
Send comments identified
by Docket No. FAA–2021–1193 using
any of the following methods:
PO 00000
Frm 00002
Fmt 4700
Sfmt 4700
• 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: Except for Confidential
Business Information (CBI) as described
in the following paragraph, and other
information as described in title 14,
Code of Federal Regulations (14 CFR)
11.35, the FAA will post all comments
received without change to https://
E:\PICKUP\03AUR1.SGM
03AUR1
lotter on DSK11XQN23PROD with RULES1
Federal Register / Vol. 87, No. 148 / Wednesday, August 3, 2022 / Rules and Regulations
www.regulations.gov/, including any
personal information you provide. The
FAA will also post a report
summarizing each substantive verbal
contact received about these special
conditions.
Confidential Business Information:
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 the
indicated comments will not be placed
in the public docket of these special
conditions. Send submissions
containing CBI to Todd Martin,
Materials and Structural Properties
Section, AIR–621, Technical Innovation
Policy Branch, Policy and Innovation
Division, Aircraft Certification Service,
Federal Aviation Administration, 2200
South 216th Street, Des Moines,
Washington 98198; telephone and fax
206–231–3210; email Todd.Martin@
faa.gov. Comments the FAA receives,
which are not specifically designated as
CBI, will be placed in the public docket
for these special conditions.
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 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:
Todd Martin, Materials and Structural
Properties Section, AIR–621, Technical
Innovation Policy Branch, Policy and
Innovation Division, Aircraft
Certification Service, Federal Aviation
Administration, 2200 South 216th
Street, Des Moines, Washington 98198;
telephone and fax 206–231–3210; email
Todd.Martin@faa.gov.
SUPPLEMENTARY INFORMATION: The
substance of these special conditions
has been published in the Federal
Register for public comment in several
prior instances with no substantive
comments received. Therefore, the FAA
VerDate Sep<11>2014
17:44 Aug 02, 2022
Jkt 256001
finds, pursuant to § 11.38(b), that new
comments are unlikely, and notice and
comment prior to this publication are
unnecessary.
Comments Invited
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 may change these
special conditions based on the
comments received.
Background
On July 1, 2012, Dassault Aviation
applied for a type certificate for its new
Model Falcon 5X airplane. However,
Dassault has decided not to release an
airplane under the model designation
Falcon 5X, instead choosing to change
that model designation to Falcon 6X.
In February of 2018, due to engine
supplier issues, Dassault extended the
type certificate application date for its
Model Falcon 5X airplane under new
Model Falcon 6X. This airplane is a
twin-engine business jet with seating for
19 passengers and a maximum takeoff
weight of 77,460 pounds.
Type Certification Basis
Under the provisions of title 14, Code
of Federal Regulations (14 CFR) 21.17,
Dassault must show that the Model
Falcon 6X airplane meets the applicable
provisions of part 25, as amended by
amendments 25–1 through 25–146.
If the Administrator finds that the
applicable airworthiness regulations
(e.g., 14 CFR part 25) do not contain
adequate or appropriate safety standards
for the Dassault Model Falcon 6X
airplane 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 novel or unusual
design feature, these special conditions
would also apply to the other model
under § 21.101.
In addition to the applicable
airworthiness regulations and special
conditions, the Dassault Model Falcon
6X airplane must comply with the fuelvent and exhaust-emission requirements
of 14 CFR part 34, and the noise-
PO 00000
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Fmt 4700
Sfmt 4700
47333
certification requirements of 14 CFR
part 36.
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).
Novel or Unusual Design Features
The Dassault Model Falcon 6X
airplane will incorporate the following
novel or unusual design feature:
The airplane is equipped with a high
speed protection system that limits
nose-down pilot authority at speeds
above VC/MC, and prevents the airplane
from actually performing the maneuver
required under 14 CFR 25.335(b)(1).
Discussion
Section 25.335(b)(1) is an analytical
envelope condition, adopted initially in
part 4b of the Civil Air Regulations, to
provide an acceptable speed margin
between design cruise speed and design
dive speed. The design dive speed
impacts flutter clearance design speeds
and airframe design loads. While the
initial condition for the upset specified
in the rule is 1g level flight, protection
is afforded for other inadvertent
overspeed conditions. Section
25.335(b)(1) is intended as a
conservative enveloping condition for
potential overspeed conditions,
including non-symmetric ones.
To establish that potential overspeed
conditions are enveloped, the applicant
should demonstrate that any reduced
speed margin, based on the high speed
protection system on the Dassault
Model Falcon 6X, will not be exceeded
in inadvertent, or gust induced, upsets
resulting in initiation of the dive from
non-symmetric attitudes; or that the
flight-control laws protect the airplane
from getting into non-symmetric upset
conditions. The proposed special
conditions identify various symmetric
and non-symmetric maneuvers to
ensure that an appropriate design dive
speed, VD/MD, is established.
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.
Applicability
As discussed above, these special
conditions are applicable to the Dassault
Model Falcon 6X airplane. Should
Dassault 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.
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47334
Federal Register / Vol. 87, No. 148 / Wednesday, August 3, 2022 / Rules and Regulations
Conclusion
This action affects only a certain
novel or unusual design feature on one
model of airplane. It is not a rule of
general applicability.
List of Subjects in 14 CFR Part 25
Aircraft, Aviation safety, Reporting
and recordkeeping requirements.
Authority Citation
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
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 Dassault Aviation
Model Falcon 6X Airplane.
lotter on DSK11XQN23PROD with RULES1
Design Speed Definition
(a) In lieu of compliance with 14 CFR
25.335(b)(1), if the flight-control system
includes functions that act
automatically to initiate recovery before
the end of the 20 second period
specified in § 25.335(b)(1), VD/MD must
be determined from the greater of the
speeds resulting from conditions (a) and
(b) below. The speed increase occurring
in these maneuvers may be calculated,
if reliable or conservative aerodynamic
data are used.
(1) From an initial condition of
stabilized flight at VC/MC, the airplane
is upset so as to take up a new flight
path 7.5 degrees below the initial path.
The pilot implements a control
application to try to maintain this new
flight path up to full authority. Twenty
seconds after initiating the upset,
manual recovery is made at a load factor
of 1.5 g (0.5 acceleration increment), or
such greater load factor the system
automatically applies with the pilot’s
pitch control neutral. Power, as
specified in § 25.175(b)(1)(iv), is
assumed until the pilot initiates a
recovery, at which time power
reduction and the use of pilot-controlled
drag devices may be used.
(2) From a speed below VC/MC, with
power to maintain stabilized level flight
at this speed, the airplane is upset so as
to accelerate through VC/MC at a flight
path 15 degrees below the initial path
(or at the steepest nose-down attitude
that the system will permit with full
control authority if less than 15
degrees). The pilot’s controls may be in
the neutral position after reaching VC/
MC and before recovery is initiated.
Three seconds after a high-speed
warning system annunciation, the pilot
VerDate Sep<11>2014
17:44 Aug 02, 2022
Jkt 256001
may initiate recovery by applying a load
of 1.5g (0.5 acceleration increment), or
such greater load factor that is
automatically applied by the system
with the pilot’s pitch control neutral.
Power may be reduced simultaneously.
All other means of decelerating the
airplane, the use of which is authorized
up to the highest speed reached in the
maneuver, may be used. The interval
between successive pilot actions must
not be less than one second.
(b) The applicant must also
demonstrate that the speed margin,
established as above, will not be
exceeded in inadvertent, or gust
induced, upsets resulting in initiation of
the dive from non-symmetric attitudes,
unless the flight-control laws protect the
airplane from getting into nonsymmetric upset conditions. The upset
maneuvers described in Advisory
Circular 25–7D, ‘‘Flight Test Guide For
Certification of Transport Category
Airplanes,’’ paragraphs 10.2.3.3.1 and
10.2.3.3.3, paragraphs c.(3)(a) and (c)
may be used to comply with this
requirement.
(c) Any failure of the high-speed
protection system that would result in
an airspeed exceeding those determined
by conditions (a) and (b), above, must
have a probability of occurrence of less
than 1E–5 per flight hour.
(d) Failures of the system must be
annunciated to the pilots. Flight manual
instructions must be provided that
reduce the maximum operating speeds,
VMO/MMO. The operating speed must be
reduced to a value that maintains a
speed margin between VMO/MMO and
VD/MD that is consistent with showing
compliance with § 25.335(b) without the
benefit of the high-speed protection
system.
(e) Dispatch of the airplane with the
high-speed protection system
inoperative could be allowed under an
approved minimum equipment listing
that would require flight manual
instructions to indicate reduced
maximum operating speeds, as
described in condition (d), above. In
addition, the cockpit display of the
reduced operating speeds, and the
overspeed warning for exceeding those
speeds, must be equivalent to that of the
normal airplane with the high-speed
protection system operative. It must also
be shown that no additional hazards are
introduced with the high-speed
protection system inoperative.
PO 00000
Frm 00004
Fmt 4700
Sfmt 4700
Issued in Kansas City, Missouri, on July 20,
2022.
Patrick R. Mullen,
Manager, Technical Innovation Policy
Branch, Policy and Innovation Division,
Aircraft Certification Service.
[FR Doc. 2022–16558 Filed 8–2–22; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2022–0880; Project
Identifier AD–2022–00620–T; Amendment
39–22126; AD 2022–15–06]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; request for
comments.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for all The
Boeing Company Model 777 airplanes.
This AD was prompted by high
electrical resistance within the gust
suppression sensor (GSS) transorb
modules due to corrosion on the
transorb module threads. This AD
requires disconnecting the connectors
and capping and stowing the wires that
had been attached to the affected
transorb modules. The FAA is issuing
this AD to address the unsafe condition
on these products.
DATES: This AD is effective August 18,
2022.
The FAA must receive comments on
this AD by September 19, 2022.
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.
SUMMARY:
Examining the AD Docket
You may examine the AD docket at
https://www.regulations.gov by
searching for and locating Docket No.
E:\PICKUP\03AUR1.SGM
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]]>Agencies
[Federal Register Volume 87, Number 148 (Wednesday, August 3, 2022)]
[Rules and Regulations]
[Pages 47332-47334]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-16558]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No. FAA-2021-1193; Special Conditions No. 25-798-SC]
Special Conditions: Dassault Aviation Falcon Model 6X Airplane;
Design Speed Definition
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final special conditions; request for comments.
-----------------------------------------------------------------------
SUMMARY: These special conditions are issued for the Dassault Aviation
(Dassault) Model Falcon 6X Airplane. This airplane will have a novel or
unusual design feature when compared to the state of technology
envisioned in the airworthiness standards for transport category
airplanes. This design feature is a high speed protection system that
limits nose-down pilot authority at speeds above VC/
MC. 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: This action is effective on Dassault on August 3, 2022. Send
comments on or before September 19, 2022.
ADDRESSES: Send comments identified by Docket No. FAA-2021-1193 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: Except for Confidential Business Information (CBI) as
described in the following paragraph, and other information as
described in title 14, Code of Federal Regulations (14 CFR) 11.35, the
FAA will post all comments received without change to https://
[[Page 47333]]
www.regulations.gov/, including any personal information you provide.
The FAA will also post a report summarizing each substantive verbal
contact received about these special conditions.
Confidential Business Information: 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 the indicated comments will not be placed in the public
docket of these special conditions. Send submissions containing CBI to
Todd Martin, Materials and Structural Properties Section, AIR-621,
Technical Innovation Policy Branch, Policy and Innovation Division,
Aircraft Certification Service, Federal Aviation Administration, 2200
South 216th Street, Des Moines, Washington 98198; telephone and fax
206-231-3210; email [email protected]. Comments the FAA receives,
which are not specifically designated as CBI, will be placed in the
public docket for these special conditions.
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 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: Todd Martin, Materials and Structural
Properties Section, AIR-621, Technical Innovation Policy Branch, Policy
and Innovation Division, Aircraft Certification Service, Federal
Aviation Administration, 2200 South 216th Street, Des Moines,
Washington 98198; telephone and fax 206-231-3210; email
[email protected].
SUPPLEMENTARY INFORMATION: The substance of these special conditions
has been published in the Federal Register for public comment in
several prior instances with no substantive comments received.
Therefore, the FAA finds, pursuant to Sec. 11.38(b), that new comments
are unlikely, and notice and comment prior to this publication are
unnecessary.
Comments Invited
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 may change these special conditions based on the
comments received.
Background
On July 1, 2012, Dassault Aviation applied for a type certificate
for its new Model Falcon 5X airplane. However, Dassault has decided not
to release an airplane under the model designation Falcon 5X, instead
choosing to change that model designation to Falcon 6X.
In February of 2018, due to engine supplier issues, Dassault
extended the type certificate application date for its Model Falcon 5X
airplane under new Model Falcon 6X. This airplane is a twin-engine
business jet with seating for 19 passengers and a maximum takeoff
weight of 77,460 pounds.
Type Certification Basis
Under the provisions of title 14, Code of Federal Regulations (14
CFR) 21.17, Dassault must show that the Model Falcon 6X airplane meets
the applicable provisions of part 25, as amended by amendments 25-1
through 25-146.
If the Administrator finds that the applicable airworthiness
regulations (e.g., 14 CFR part 25) do not contain adequate or
appropriate safety standards for the Dassault Model Falcon 6X airplane
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 novel or
unusual design feature, these special conditions would also apply to
the other model under Sec. 21.101.
In addition to the applicable airworthiness regulations and special
conditions, the Dassault Model Falcon 6X airplane 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.
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 Dassault Model Falcon 6X airplane will incorporate the
following novel or unusual design feature:
The airplane is equipped with a high speed protection system that
limits nose-down pilot authority at speeds above VC/
MC, and prevents the airplane from actually performing the
maneuver required under 14 CFR 25.335(b)(1).
Discussion
Section 25.335(b)(1) is an analytical envelope condition, adopted
initially in part 4b of the Civil Air Regulations, to provide an
acceptable speed margin between design cruise speed and design dive
speed. The design dive speed impacts flutter clearance design speeds
and airframe design loads. While the initial condition for the upset
specified in the rule is 1g level flight, protection is afforded for
other inadvertent overspeed conditions. Section 25.335(b)(1) is
intended as a conservative enveloping condition for potential overspeed
conditions, including non-symmetric ones.
To establish that potential overspeed conditions are enveloped, the
applicant should demonstrate that any reduced speed margin, based on
the high speed protection system on the Dassault Model Falcon 6X, will
not be exceeded in inadvertent, or gust induced, upsets resulting in
initiation of the dive from non-symmetric attitudes; or that the
flight-control laws protect the airplane from getting into non-
symmetric upset conditions. The proposed special conditions identify
various symmetric and non-symmetric maneuvers to ensure that an
appropriate design dive speed, VD/MD, is
established.
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.
Applicability
As discussed above, these special conditions are applicable to the
Dassault Model Falcon 6X airplane. Should Dassault 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.
[[Page 47334]]
Conclusion
This action affects only a certain novel or unusual design feature
on one model of airplane. It is not a rule of general applicability.
List of Subjects in 14 CFR Part 25
Aircraft, Aviation safety, Reporting and recordkeeping
requirements.
Authority Citation
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
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 Dassault Aviation Model Falcon 6X
Airplane.
Design Speed Definition
(a) In lieu of compliance with 14 CFR 25.335(b)(1), if the flight-
control system includes functions that act automatically to initiate
recovery before the end of the 20 second period specified in Sec.
25.335(b)(1), VD/MD must be determined from the
greater of the speeds resulting from conditions (a) and (b) below. The
speed increase occurring in these maneuvers may be calculated, if
reliable or conservative aerodynamic data are used.
(1) From an initial condition of stabilized flight at
VC/MC, the airplane is upset so as to take up a
new flight path 7.5 degrees below the initial path. The pilot
implements a control application to try to maintain this new flight
path up to full authority. Twenty seconds after initiating the upset,
manual recovery is made at a load factor of 1.5 g (0.5 acceleration
increment), or such greater load factor the system automatically
applies with the pilot's pitch control neutral. Power, as specified in
Sec. 25.175(b)(1)(iv), is assumed until the pilot initiates a
recovery, at which time power reduction and the use of pilot-controlled
drag devices may be used.
(2) From a speed below VC/MC, with power to
maintain stabilized level flight at this speed, the airplane is upset
so as to accelerate through VC/MC at a flight
path 15 degrees below the initial path (or at the steepest nose-down
attitude that the system will permit with full control authority if
less than 15 degrees). The pilot's controls may be in the neutral
position after reaching VC/MC and before recovery
is initiated. Three seconds after a high-speed warning system
annunciation, the pilot may initiate recovery by applying a load of
1.5g (0.5 acceleration increment), or such greater load factor that is
automatically applied by the system with the pilot's pitch control
neutral. Power may be reduced simultaneously. All other means of
decelerating the airplane, the use of which is authorized up to the
highest speed reached in the maneuver, may be used. The interval
between successive pilot actions must not be less than one second.
(b) The applicant must also demonstrate that the speed margin,
established as above, will not be exceeded in inadvertent, or gust
induced, upsets resulting in initiation of the dive from non-symmetric
attitudes, unless the flight-control laws protect the airplane from
getting into non-symmetric upset conditions. The upset maneuvers
described in Advisory Circular 25-7D, ``Flight Test Guide For
Certification of Transport Category Airplanes,'' paragraphs 10.2.3.3.1
and 10.2.3.3.3, paragraphs c.(3)(a) and (c) may be used to comply with
this requirement.
(c) Any failure of the high-speed protection system that would
result in an airspeed exceeding those determined by conditions (a) and
(b), above, must have a probability of occurrence of less than 1E-5 per
flight hour.
(d) Failures of the system must be annunciated to the pilots.
Flight manual instructions must be provided that reduce the maximum
operating speeds, VMO/MMO. The operating speed
must be reduced to a value that maintains a speed margin between
VMO/MMO and VD/MD that is
consistent with showing compliance with Sec. 25.335(b) without the
benefit of the high-speed protection system.
(e) Dispatch of the airplane with the high-speed protection system
inoperative could be allowed under an approved minimum equipment
listing that would require flight manual instructions to indicate
reduced maximum operating speeds, as described in condition (d), above.
In addition, the cockpit display of the reduced operating speeds, and
the overspeed warning for exceeding those speeds, must be equivalent to
that of the normal airplane with the high-speed protection system
operative. It must also be shown that no additional hazards are
introduced with the high-speed protection system inoperative.
Issued in Kansas City, Missouri, on July 20, 2022.
Patrick R. Mullen,
Manager, Technical Innovation Policy Branch, Policy and Innovation
Division, Aircraft Certification Service.
[FR Doc. 2022-16558 Filed 8-2-22; 8:45 am]
BILLING CODE 4910-13-P
