Special Conditions: Dassault Model Fan Jet Falcon, Fan Jet Falcon Series C, D, E, and F Airplanes; Model Mystere-Falcon 200 Airplanes; and Model Mystere-Falcon 20-C5, 20-D5, 20-E5, and 20-F5 Airplanes; High-Intensity Radiated Fields (HIRF), 39910-39912 [05-13658]
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<![CDATA[
39910
Federal Register / Vol. 70, No. 132 / Tuesday, July 12, 2005 / Rules and Regulations
exposed to high-intensity radiated
fields.
2. For the purpose of these special
conditions, the following definition
applies: Critical Functions: Functions
whose failure would contribute to or
cause a failure condition that would
prevent the continued safe flight and
landing of the airplane.
Issued in Renton, Washington, on July 1,
2005.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 05–13662 Filed 7–11–05; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
Comments Invited
[Docket No. NM312; Special Conditions No.
25–292–SC]
Special Conditions: Dassault Model
Fan Jet Falcon, Fan Jet Falcon Series
C, D, E, and F Airplanes; Model
Mystere-Falcon 200 Airplanes; and
Model Mystere-Falcon 20–C5, 20–D5,
20–E5, and 20–F5 Airplanes; HighIntensity Radiated Fields (HIRF)
Federal Aviation
Administration (FAA), DOT.
ACTION: Final special conditions; request
for comments.
AGENCY:
SUMMARY: These special conditions are
issued for Dassault Model Fan Jet
Falcon, Fan Jet Falcon Series C, D, E,
and F airplanes; Model Mystere-Falcon
200 airplanes; and Model MystereFalcon 20–C5, 20–D5, 20–E5, and 20–F5
airplanes modified by Royal Air, Inc.
These modified airplanes will have a
novel or unusual design feature when
compared to the state of technology
envisioned in the airworthiness
standards for transport category
airplanes. The modification is the
installation of new air data display units
(ADDU) and a new air data sensor,
which perform critical functions. The
applicable airworthiness regulations do
not contain adequate or appropriate
safety standards for the protection of
these systems from the effects of highintensity radiated fields (HIRF). 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 July 1, 2005.
VerDate jul<14>2003
14:34 Jul 11, 2005
Comments must be received on or
before August 11, 2005.
ADDRESSES: Comments on these special
conditions may be mailed in duplicate
to: Federal Aviation Administration,
Transport Airplane Directorate,
Attention: Rules Docket (ANM–113),
Docket No. NM312 1601 Lind Avenue
SW., Renton, Washington 98055–4056;
or delivered in duplicate to the
Transport Airplane Directorate at the
above address. All comments must be
marked Docket No. NM312.
FOR FURTHER INFORMATION CONTACT: Greg
Dunn, FAA, Airplane and Flight Crew
Interface Branch, ANM–111, Transport
Airplane Directorate, Aircraft
Certification Service, 1601 Lind Avenue
SW., Renton, Washington 98055–4056;
telephone (425) 227–2799; facsimile
(425) 227–1320.
SUPPLEMENTARY INFORMATION:
Jkt 205001
The FAA has determined that notice
and opportunity for prior public
comment is impracticable because these
procedures would significantly delay
certification of the airplane and thus
delivery of the affected aircraft. In
addition, the substance of these special
conditions has been subject to the
public comment process in several prior
instances with no substantive comments
received. The FAA therefore finds that
good cause exists for making these
special conditions effective upon
issuance; however, we invite interested
persons to participate in this rulemaking
by submitting 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 ask that
you send us two copies of written
comments.
We will file in the docket all
comments we receive, as well as a
report summarizing each substantive
public contact with FAA personnel
concerning these special conditions.
The docket is available for public
inspection before and after the comment
closing date. If you wish to review the
docket in person, go to the address in
the ADDRESSES section of this preamble
between 7:30 a.m. and 4 p.m., Monday
through Friday, except Federal holidays.
We will consider all comments we
receive on or before the closing date for
comments. We will consider comments
filed late if it is possible to do so
without incurring expense or delay. We
may change these special conditions
based on the comments we receive.
If you want the FAA to acknowledge
receipt of your comments on these
PO 00000
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Fmt 4700
Sfmt 4700
special conditions, include with your
comments a pre-addressed, stamped
postcard on which the docket number
appears. We will stamp the date on the
postcard and mail it back to you.
Background
On January 28, 2005, Royal Air, Inc.,
2141 Airport Road, Waterford, Michigan
48327, applied for a supplemental type
certificate (STC) to modify Dassault
Model Fan Jet Falcon, Fan Jet Falcon
Series C, D, E, and F airplanes; Model
Mystere-Falcon 200 airplanes; and
Model Mystere-Falcon 20–C5, 20–D5,
20–E5, and 20–F5 airplanes currently
approved under Type Certificate No.
A7EU. The Dassault Aviation Falcon
series airplanes are small transport
category airplanes powered by two
turbojet engines, with maximum takeoff
weights of up to 18,000 pounds. These
airplanes operate with a 2-pilot crew
and can seat up to 8 passengers. The
proposed modification is the
installation of ADDUs and an air data
sensor manufactured by Innovative
Solutions & Support. The avionics/
electronics and electrical systems
installed in this airplane have the
potential to be vulnerable to highintensity radiated fields (HIRF) external
to the airplane.
Type Certification Basis
Under the provisions of 14 CFR
21.101, Royal Air, Inc. must show that
the Dassault Model Fan Jet Falcon, Fan
Jet Falcon Series C, D, E, and F
airplanes; Model Mystere-Falcon 200
airplanes; and Model Mystere-Falcon
20–C5, 20–D5, 20–E5, and 20–F5
airplanes, as changed, continue to meet
the applicable provisions of the
regulations incorporated by reference in
Type Certificate No. A7EU, or the
applicable regulations in effect on the
date of application for the change. The
regulations incorporated by reference in
the type certificate are commonly
referred to as the ‘‘original type
certification basis.’’ The certification
basis for the Dassault Model Fan Jet
Falcon and Fan Jet Falcon Series C, D,
E, and F airplanes includes the
applicable paragraphs of CAR 4b, as
amended by Amendments 4b–1 through
4b–12, Special Regulation SR–422B, and
14 CFR part 25 as amended by
provisions of Amendment 25–4 in lieu
of CAR 4b.350(e) and (f). The
certification basis for the Dassault
Model Mystere-Falcon 200 airplanes
includes the applicable paragraphs of
CAR 4b, as amended by Amendments
4b–1 through 4b–12; Special Regulation
SR–422B and 14 CFR part 25 as
amended by certain sections of
Amendments 25–1 through 25–46;
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Federal Register / Vol. 70, No. 132 / Tuesday, July 12, 2005 / Rules and Regulations
SFAR 27 as amended by Amendments
27–1 through 27–3; and 14 CFR part 36
as amended by Amendments 36–1
through 36–12. The certification basis
for the Dassault Model Mystere-Falcon
20–C5, 20–D5, 20–E5, and 20–F5
airplanes includes the applicable
paragraphs of CAR 4b, as amended by
Amendments 4b–1 through 4b–12,
Special Regulation SR–422B, and 14
CFR part 25 as amended by certain
sections in Amendments 25–1 through
25–56; § 25.904 and Appendix 1 as
amended by Amendment 25–62; SFAR
27 as amended by Amendments 27–1
through 27–6; and 14 CFR part 36 as
amended by Amendments 36–1 through
36–15. In addition, the certification
basis includes certain later amended
sections of the applicable part 25
regulations that are not relevant to these
special conditions.
If the Administrator finds that the
applicable airworthiness regulations
(i.e., part 25, as amended) do not
contain adequate or appropriate safety
standards for the Dassault Model Fan Jet
Falcon, Fan Jet Falcon Series C, D, E,
and F airplanes; Model Mystere-Falcon
200 airplanes; and Model MystereFalcon 20–C5, 20–D5, 20–E5, and 20–F5
airplanes because of a novel or unusual
design feature, special conditions are
prescribed under the provisions of
§ 21.16.
In addition to the applicable
airworthiness regulations and special
conditions, the Dassault Model Fan Jet
Falcon, Fan Jet Falcon Series C, D, E,
and F airplanes; Model Mystere-Falcon
200 airplanes; and Model MystereFalcon 20–C5, 20–D5, 20–E5, and 20–F5
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.
Special conditions, as defined in 14
CFR 11.19, are issued in accordance
with § 11.38 and become part of the type
certification basis in accordance with
§ 21.101.
Special conditions are initially
applicable to the model for which they
are issued. Should Royal Air, Inc. apply
at a later date for a supplemental type
certificate to modify any other model
included on Type Certificate No. A7EU
to incorporate the same or similar novel
or unusual design feature, these special
conditions would also apply to the other
model under the provisions of § 21.101.
Novel or Unusual Design Features
As noted earlier, the Dassault Model
Fan Jet Falcon, Fan Jet Falcon Series C,
D, E, and F airplanes; Model MystereFalcon 200 airplanes; and Model
Mystere-Falcon 20–C5, 20–D5, 20–E5,
VerDate jul<14>2003
14:34 Jul 11, 2005
Jkt 205001
and 20–F5 airplanes modified by Royal
Air, Inc. will incorporate ADDUs and an
air data sensor manufactured by
Innovative Solutions & Support. The
ADDUs and air data sensor perform
critical functions. These systems may be
vulnerable to high-intensity radiated
fields external to the airplane. The
current airworthiness standards of part
25 do not contain adequate or
appropriate safety standards for the
protection of this equipment from the
adverse effects of HIRF. Accordingly,
this system is considered to be a novel
or unusual design feature.
Discussion
There is no specific regulation that
addresses protection requirements for
electrical and electronic systems from
HIRF. Increased power levels from
ground-based radio transmitters and the
growing use of sensitive avionics/
electronics and electrical systems to
command and control airplanes have
made it necessary to provide adequate
protection.
To ensure that a level of safety is
achieved equivalent to that intended by
the regulations incorporated by
reference, special conditions are needed
for the Dassault Model Fan Jet Falcon,
Fan Jet Falcon Series C, D, E, and F
airplanes; Model Mystere-Falcon 200
airplanes; and Model Mystere-Falcon
20–C5, 20–D5, 20–E5, and 20–F5
airplanes modified by Royal Air, Inc.
These special conditions require that
new avionics/electronics and electrical
systems that perform critical functions
be designed and installed to preclude
component damage and interruption of
function due to both the direct and
indirect effects of HIRF.
High-Intensity Radiated Fields (HIRF)
With the trend toward increased
power levels from ground-based
transmitters, and the advent of space
and satellite communications, coupled
with electronic command and control of
the airplane, the immunity of critical
avionics/electronics and electrical
systems to HIRF must be established.
It is not possible to precisely define
the HIRF to which the airplane will be
exposed in service. There is also
uncertainty concerning the effectiveness
of airframe shielding for HIRF.
Furthermore, coupling of
electromagnetic energy to cockpitinstalled equipment through the cockpit
window apertures is undefined. Based
on surveys and analysis of existing HIRF
emitters, an adequate level of protection
exists when compliance with the HIRF
protection special condition is shown
with either paragraph 1 OR 2 below:
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Fmt 4700
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1. A minimum threat of 100 volts rms
(root-mean-square) per meter electric
field strength from 10 KHz to 18 GHz.
a. The threat must be applied to the
system elements and their associated
wiring harnesses without the benefit of
airframe shielding.
b. Demonstration of this level of
protection is established through system
tests and analysis.
2. A threat external to the airframe of
the field strengths identified in the table
below for the frequency ranges
indicated. Both peak and average field
strength components from the table are
to be demonstrated.
Frequency
Field strength
(volts per meter)
Peak
10 kHz–100 kHz ...........
100 kHz–500 kHz .........
500 kHz–2 MHz ............
2 MHz–30 MHz .............
30 MHz–70 MHz ...........
70 MHz–100 MHz .........
100 MHz–200 MHz .......
200 MHz–400 MHz .......
400 MHz–700 MHz .......
700 MHz–1 GHz ...........
1 GHz–2 GHz ...............
2 GHz–4 GHz ...............
4 GHz–6 GHz ...............
6 GHz–8 GHz ...............
8 GHz–12 GHz .............
12 GHz–18 GHz ...........
18 GHz–40 GHz ...........
50
50
50
100
50
50
100
100
700
700
2000
3000
3000
1000
3000
2000
600
Average
50
50
50
100
50
50
100
100
50
100
200
200
200
200
300
200
200
The field strengths are expressed in terms
of peak of the root-mean-square (rms) over
the complete modulation period.
The threat levels identified above are
the result of an FAA review of existing
studies on the subject of HIRF, in light
of the ongoing work of the
Electromagnetic Effects Harmonization
Working Group of the Aviation
Rulemaking Advisory Committee.
Applicability
As discussed above, these special
conditions are applicable to Dassault
Model Fan Jet Falcon, Fan Jet Falcon
Series C, D, E, and F airplanes; Model
Mystere-Falcon 200 airplanes; and
Model Mystere-Falcon 20–C5, 20–D5,
20–E5, and 20–F5 airplanes modified by
Royal Air, Inc. Should Royal Air, Inc.
apply at a later date for a supplemental
type certificate to modify any other
model included on Type Certificate No.
A7EU to incorporate the same or similar
novel or unusual design feature, these
special conditions would apply to that
model as well under the provisions of
§ 21.101.
Conclusion
This action affects only certain novel
or unusual design features on Dassault
E:\FR\FM\12JYR1.SGM
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Federal Register / Vol. 70, No. 132 / Tuesday, July 12, 2005 / Rules and Regulations
Model Fan Jet Falcon, Fan Jet Falcon
Series C, D, E, and F airplanes; Model
Mystere-Falcon 200 airplanes; and
Model Mystere-Falcon 20–C5, 20–D5,
20–E5, and 20–F5 airplanes modified by
Royal Air, Inc. 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.
The substance of these special
conditions has been subjected to the
notice and comment procedure in
several prior instances and has been
derived without substantive change
from those previously issued. Because a
delay would significantly affect the
certification of the airplane, which is
imminent, the FAA has determined that
prior public notice and comment are
unnecessary and impracticable, and
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 described above.
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 Special Conditions
Accordingly, pursuant to the
authority delegated to me by the
Administrator, the following special
conditions are issued as part of the
supplemental type certification basis for
Dassault Model Fan Jet Falcon, Fan Jet
Falcon Series C, D, E, and F airplanes;
Model Mystere-Falcon 200 airplanes;
and Model Mystere-Falcon 20–C5, 20–
D5, 20–E5, and 20–F5 airplanes
modified by Royal Air, Inc.
1. Protection from Unwanted Effects
of High-Intensity Radiated Fields
(HIRF).
Each electrical and electronic system
that performs critical functions must be
designed and installed to ensure that the
operation and operational capability of
these systems to perform critical
functions are not adversely affected
when the airplane is exposed to highintensity radiated fields.
2. For the purpose of these special
conditions, the following definition
applies:
Critical Functions: Functions whose
failure would contribute to or cause a
failure condition that would prevent the
continued safe flight and landing of the
airplane.
VerDate jul<14>2003
14:34 Jul 11, 2005
Jkt 205001
Issued in Renton, Washington, on July 1,
2005.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 05–13658 Filed 7–11–05; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2005–20725; Directorate
Identifier 2003–NM–250–AD; Amendment
39–14183; AD 2005–14–06]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 707–300B, –300C, and –400
Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for all
Boeing Model 707–300B, –300C, and
–400 series airplanes. This AD requires
repetitive inspections to detect cracked
or broken hinge fitting assemblies of the
inboard leading edge slats, and
corrective action if necessary. This AD
also provides as an option a preventive
modification, which defers the
repetitive inspections. In addition, this
AD provides an option of replacing all
hinge fitting assemblies with new,
improved parts, which terminates the
repetitive inspection requirements. This
AD is prompted by results of a review
to identify and implement procedures to
ensure the continued structural
airworthiness of aging transport
category airplanes. We are issuing this
AD to detect and correct fatigue
cracking of the hinge fitting assembly of
the inboard leading edge slats, which
could result in reduced structural
integrity of the slat system. This
condition could result in loss of the
inboard leading edge slat and could
cause the flightcrew to lose control of
the airplane.
DATES: This AD becomes effective
August 16, 2005.
The incorporation by reference of a
certain publication listed in the AD is
approved by the Director of the Federal
Register as of August 16, 2005.
ADDRESSES: For service information
identified in this AD, contact Boeing
Commercial Airplanes, P.O. Box 3707,
Seattle, Washington 98124–2207.
Docket: The AD docket contains the
proposed AD, comments, and any final
PO 00000
Frm 00008
Fmt 4700
Sfmt 4700
disposition. You can examine the AD
docket on the Internet at https://
dms.dot.gov, or in person at the Docket
Management Facility office between 9
a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The
Docket Management Facility office
(telephone (800) 647–5227) is located on
the plaza level of the Nassif Building at
the U.S. Department of Transportation,
400 Seventh Street SW., room PL–401,
Washington, DC. This docket number is
FAA–2005–20725; the directorate
identifier for this docket is 2003–NM–
250–AD.
FOR FURTHER INFORMATION CONTACT:
Candice Gerretsen, Aerospace Engineer,
Airframe Branch, ANM–120S, FAA
Seattle Aircraft Certification Office,
1601 Lind Avenue SW., Renton,
Washington 98055–4056; telephone
(425) 917–6428; fax (425) 917–6590.
SUPPLEMENTARY INFORMATION: The FAA
proposed to amend 14 CFR part 39 with
an AD for all Boeing Model 707–300B,
–300C, and –400 series airplanes. That
action, published in the Federal
Register on March 30, 2005 (70 FR
16177), proposed to require repetitive
inspections to detect cracked or broken
hinge fitting assemblies of the inboard
leading edge slats, and corrective action
if necessary. That action also proposed
an optional preventive modification,
which defers the repetitive inspections.
In addition, that action proposed an
option of replacing all hinge fitting
assemblies with new, improved parts,
which terminates the repetitive
inspection requirements.
Comments
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the comment that has been
submitted on the proposed AD. The
commenter supports the proposed AD.
Explanation of Change to Referenced
Service Bulletin
We have corrected the title of the
service bulletin referred to in this AD to
‘‘Boeing 707/720 Service Bulletin
2982.’’
Clarification of Optional Preventative
Modification
We have revised the text of paragraph
(i) of the AD to clarify that the optional
preventative modification ‘‘defers the
repetitive inspections required by
paragraph (g) of this AD.’’
Conclusion
We have carefully reviewed the
available data, including the comment
that has been submitted, and
determined that air safety and the
E:\FR\FM\12JYR1.SGM
12JYR1
]]>Agencies
[Federal Register Volume 70, Number 132 (Tuesday, July 12, 2005)]
[Rules and Regulations]
[Pages 39910-39912]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-13658]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No. NM312; Special Conditions No. 25-292-SC]
Special Conditions: Dassault Model Fan Jet Falcon, Fan Jet Falcon
Series C, D, E, and F Airplanes; Model Mystere-Falcon 200 Airplanes;
and Model Mystere-Falcon 20-C5, 20-D5, 20-E5, and 20-F5 Airplanes;
High-Intensity Radiated Fields (HIRF)
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final special conditions; request for comments.
-----------------------------------------------------------------------
SUMMARY: These special conditions are issued for Dassault Model Fan Jet
Falcon, Fan Jet Falcon Series C, D, E, and F airplanes; Model Mystere-
Falcon 200 airplanes; and Model Mystere-Falcon 20-C5, 20-D5, 20-E5, and
20-F5 airplanes modified by Royal Air, Inc. These modified airplanes
will have a novel or unusual design feature when compared to the state
of technology envisioned in the airworthiness standards for transport
category airplanes. The modification is the installation of new air
data display units (ADDU) and a new air data sensor, which perform
critical functions. The applicable airworthiness regulations do not
contain adequate or appropriate safety standards for the protection of
these systems from the effects of high-intensity radiated fields
(HIRF). 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 July 1, 2005.
Comments must be received on or before August 11, 2005.
ADDRESSES: Comments on these special conditions may be mailed in
duplicate to: Federal Aviation Administration, Transport Airplane
Directorate, Attention: Rules Docket (ANM-113), Docket No. NM312 1601
Lind Avenue SW., Renton, Washington 98055-4056; or delivered in
duplicate to the Transport Airplane Directorate at the above address.
All comments must be marked Docket No. NM312.
FOR FURTHER INFORMATION CONTACT: Greg Dunn, FAA, Airplane and Flight
Crew Interface Branch, ANM-111, Transport Airplane Directorate,
Aircraft Certification Service, 1601 Lind Avenue SW., Renton,
Washington 98055-4056; telephone (425) 227-2799; facsimile (425) 227-
1320.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA has determined that notice and opportunity for prior public
comment is impracticable because these procedures would significantly
delay certification of the airplane and thus delivery of the affected
aircraft. In addition, the substance of these special conditions has
been subject to the public comment process in several prior instances
with no substantive comments received. The FAA therefore finds that
good cause exists for making these special conditions effective upon
issuance; however, we invite interested persons to participate in this
rulemaking by submitting 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 ask that you send us two copies of written
comments.
We will file in the docket all comments we receive, as well as a
report summarizing each substantive public contact with FAA personnel
concerning these special conditions. The docket is available for public
inspection before and after the comment closing date. If you wish to
review the docket in person, go to the address in the ADDRESSES section
of this preamble between 7:30 a.m. and 4 p.m., Monday through Friday,
except Federal holidays.
We will consider all comments we receive on or before the closing
date for comments. We will consider comments filed late if it is
possible to do so without incurring expense or delay. We may change
these special conditions based on the comments we receive.
If you want the FAA to acknowledge receipt of your comments on
these special conditions, include with your comments a pre-addressed,
stamped postcard on which the docket number appears. We will stamp the
date on the postcard and mail it back to you.
Background
On January 28, 2005, Royal Air, Inc., 2141 Airport Road, Waterford,
Michigan 48327, applied for a supplemental type certificate (STC) to
modify Dassault Model Fan Jet Falcon, Fan Jet Falcon Series C, D, E,
and F airplanes; Model Mystere-Falcon 200 airplanes; and Model Mystere-
Falcon 20-C5, 20-D5, 20-E5, and 20-F5 airplanes currently approved
under Type Certificate No. A7EU. The Dassault Aviation Falcon series
airplanes are small transport category airplanes powered by two
turbojet engines, with maximum takeoff weights of up to 18,000 pounds.
These airplanes operate with a 2-pilot crew and can seat up to 8
passengers. The proposed modification is the installation of ADDUs and
an air data sensor manufactured by Innovative Solutions & Support. The
avionics/electronics and electrical systems installed in this airplane
have the potential to be vulnerable to high-intensity radiated fields
(HIRF) external to the airplane.
Type Certification Basis
Under the provisions of 14 CFR 21.101, Royal Air, Inc. must show
that the Dassault Model Fan Jet Falcon, Fan Jet Falcon Series C, D, E,
and F airplanes; Model Mystere-Falcon 200 airplanes; and Model Mystere-
Falcon 20-C5, 20-D5, 20-E5, and 20-F5 airplanes, as changed, continue
to meet the applicable provisions of the regulations incorporated by
reference in Type Certificate No. A7EU, or the applicable regulations
in effect on the date of application for the change. The regulations
incorporated by reference in the type certificate are commonly referred
to as the ``original type certification basis.'' The certification
basis for the Dassault Model Fan Jet Falcon and Fan Jet Falcon Series
C, D, E, and F airplanes includes the applicable paragraphs of CAR 4b,
as amended by Amendments 4b-1 through 4b-12, Special Regulation SR-
422B, and 14 CFR part 25 as amended by provisions of Amendment 25-4 in
lieu of CAR 4b.350(e) and (f). The certification basis for the Dassault
Model Mystere-Falcon 200 airplanes includes the applicable paragraphs
of CAR 4b, as amended by Amendments 4b-1 through 4b-12; Special
Regulation SR-422B and 14 CFR part 25 as amended by certain sections of
Amendments 25-1 through 25-46;
[[Page 39911]]
SFAR 27 as amended by Amendments 27-1 through 27-3; and 14 CFR part 36
as amended by Amendments 36-1 through 36-12. The certification basis
for the Dassault Model Mystere-Falcon 20-C5, 20-D5, 20-E5, and 20-F5
airplanes includes the applicable paragraphs of CAR 4b, as amended by
Amendments 4b-1 through 4b-12, Special Regulation SR-422B, and 14 CFR
part 25 as amended by certain sections in Amendments 25-1 through 25-
56; Sec. 25.904 and Appendix 1 as amended by Amendment 25-62; SFAR 27
as amended by Amendments 27-1 through 27-6; and 14 CFR part 36 as
amended by Amendments 36-1 through 36-15. In addition, the
certification basis includes certain later amended sections of the
applicable part 25 regulations that are not relevant to these special
conditions.
If the Administrator finds that the applicable airworthiness
regulations (i.e., part 25, as amended) do not contain adequate or
appropriate safety standards for the Dassault Model Fan Jet Falcon, Fan
Jet Falcon Series C, D, E, and F airplanes; Model Mystere-Falcon 200
airplanes; and Model Mystere-Falcon 20-C5, 20-D5, 20-E5, and 20-F5
airplanes 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 Dassault Model Fan Jet Falcon, Fan Jet Falcon Series C,
D, E, and F airplanes; Model Mystere-Falcon 200 airplanes; and Model
Mystere-Falcon 20-C5, 20-D5, 20-E5, and 20-F5 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.
Special conditions, as defined in 14 CFR 11.19, are issued in
accordance with Sec. 11.38 and become part of the type certification
basis in accordance with Sec. 21.101.
Special conditions are initially applicable to the model for which
they are issued. Should Royal Air, Inc. apply at a later date for a
supplemental type certificate to modify any other model included on
Type Certificate No. A7EU to incorporate the same or similar novel or
unusual design feature, these special conditions would also apply to
the other model under the provisions of Sec. 21.101.
Novel or Unusual Design Features
As noted earlier, the Dassault Model Fan Jet Falcon, Fan Jet Falcon
Series C, D, E, and F airplanes; Model Mystere-Falcon 200 airplanes;
and Model Mystere-Falcon 20-C5, 20-D5, 20-E5, and 20-F5 airplanes
modified by Royal Air, Inc. will incorporate ADDUs and an air data
sensor manufactured by Innovative Solutions & Support. The ADDUs and
air data sensor perform critical functions. These systems may be
vulnerable to high-intensity radiated fields external to the airplane.
The current airworthiness standards of part 25 do not contain adequate
or appropriate safety standards for the protection of this equipment
from the adverse effects of HIRF. Accordingly, this system is
considered to be a novel or unusual design feature.
Discussion
There is no specific regulation that addresses protection
requirements for electrical and electronic systems from HIRF. Increased
power levels from ground-based radio transmitters and the growing use
of sensitive avionics/electronics and electrical systems to command and
control airplanes have made it necessary to provide adequate
protection.
To ensure that a level of safety is achieved equivalent to that
intended by the regulations incorporated by reference, special
conditions are needed for the Dassault Model Fan Jet Falcon, Fan Jet
Falcon Series C, D, E, and F airplanes; Model Mystere-Falcon 200
airplanes; and Model Mystere-Falcon 20-C5, 20-D5, 20-E5, and 20-F5
airplanes modified by Royal Air, Inc. These special conditions require
that new avionics/electronics and electrical systems that perform
critical functions be designed and installed to preclude component
damage and interruption of function due to both the direct and indirect
effects of HIRF.
High-Intensity Radiated Fields (HIRF)
With the trend toward increased power levels from ground-based
transmitters, and the advent of space and satellite communications,
coupled with electronic command and control of the airplane, the
immunity of critical avionics/electronics and electrical systems to
HIRF must be established.
It is not possible to precisely define the HIRF to which the
airplane will be exposed in service. There is also uncertainty
concerning the effectiveness of airframe shielding for HIRF.
Furthermore, coupling of electromagnetic energy to cockpit-installed
equipment through the cockpit window apertures is undefined. Based on
surveys and analysis of existing HIRF emitters, an adequate level of
protection exists when compliance with the HIRF protection special
condition is shown with either paragraph 1 OR 2 below:
1. A minimum threat of 100 volts rms (root-mean-square) per meter
electric field strength from 10 KHz to 18 GHz.
a. The threat must be applied to the system elements and their
associated wiring harnesses without the benefit of airframe shielding.
b. Demonstration of this level of protection is established through
system tests and analysis.
2. A threat external to the airframe of the field strengths
identified in the table below for the frequency ranges indicated. Both
peak and average field strength components from the table are to be
demonstrated.
------------------------------------------------------------------------
Field strength
(volts per meter)
Frequency -------------------
Peak Average
------------------------------------------------------------------------
10 kHz-100 kHz...................................... 50 50
100 kHz-500 kHz..................................... 50 50
500 kHz-2 MHz....................................... 50 50
2 MHz-30 MHz........................................ 100 100
30 MHz-70 MHz....................................... 50 50
70 MHz-100 MHz...................................... 50 50
100 MHz-200 MHz..................................... 100 100
200 MHz-400 MHz..................................... 100 100
400 MHz-700 MHz..................................... 700 50
700 MHz-1 GHz....................................... 700 100
1 GHz-2 GHz......................................... 2000 200
2 GHz-4 GHz......................................... 3000 200
4 GHz-6 GHz......................................... 3000 200
6 GHz-8 GHz......................................... 1000 200
8 GHz-12 GHz........................................ 3000 300
12 GHz-18 GHz....................................... 2000 200
18 GHz-40 GHz....................................... 600 200
------------------------------------------------------------------------
The field strengths are expressed in terms of peak of the root-mean-
square (rms) over the complete modulation period.
The threat levels identified above are the result of an FAA review
of existing studies on the subject of HIRF, in light of the ongoing
work of the Electromagnetic Effects Harmonization Working Group of the
Aviation Rulemaking Advisory Committee.
Applicability
As discussed above, these special conditions are applicable to
Dassault Model Fan Jet Falcon, Fan Jet Falcon Series C, D, E, and F
airplanes; Model Mystere-Falcon 200 airplanes; and Model Mystere-Falcon
20-C5, 20-D5, 20-E5, and 20-F5 airplanes modified by Royal Air, Inc.
Should Royal Air, Inc. apply at a later date for a supplemental type
certificate to modify any other model included on Type Certificate No.
A7EU to incorporate the same or similar novel or unusual design
feature, these special conditions would apply to that model as well
under the provisions of Sec. 21.101.
Conclusion
This action affects only certain novel or unusual design features
on Dassault
[[Page 39912]]
Model Fan Jet Falcon, Fan Jet Falcon Series C, D, E, and F airplanes;
Model Mystere-Falcon 200 airplanes; and Model Mystere-Falcon 20-C5, 20-
D5, 20-E5, and 20-F5 airplanes modified by Royal Air, Inc. 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.
The substance of these special conditions has been subjected to the
notice and comment procedure in several prior instances and has been
derived without substantive change from those previously issued.
Because a delay would significantly affect the certification of the
airplane, which is imminent, the FAA has determined that prior public
notice and comment are unnecessary and impracticable, and 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 described above.
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 Special Conditions
Accordingly, pursuant to the authority delegated to me by the
Administrator, the following special conditions are issued as part of
the supplemental type certification basis for Dassault Model Fan Jet
Falcon, Fan Jet Falcon Series C, D, E, and F airplanes; Model Mystere-
Falcon 200 airplanes; and Model Mystere-Falcon 20-C5, 20-D5, 20-E5, and
20-F5 airplanes modified by Royal Air, Inc.
1. Protection from Unwanted Effects of High-Intensity Radiated
Fields (HIRF).
Each electrical and electronic system that performs critical
functions must be designed and installed to ensure that the operation
and operational capability of these systems to perform critical
functions are not adversely affected when the airplane is exposed to
high-intensity radiated fields.
2. For the purpose of these special conditions, the following
definition applies:
Critical Functions: Functions whose failure would contribute to or
cause a failure condition that would prevent the continued safe flight
and landing of the airplane.
Issued in Renton, Washington, on July 1, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-13658 Filed 7-11-05; 8:45 am]
BILLING CODE 4910-13-P
