Special Conditions: Boeing Model 747-2G4B Airplane; Certification of Cooktops, 17334-17336 [2011-7343]
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Federal Register / Vol. 76, No. 60 / Tuesday, March 29, 2011 / Rules and Regulations
Issued in Kansas City, Missouri on March
22, 2011.
Earl Lawrence,
Manager, Small Airplane Directorate, Aircraft
Certification Service.
[FR Doc. 2011–7307 Filed 3–28–11; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No. NM452; Notice No. 25–424–SC]
Special Conditions: Boeing Model 747–
2G4B Airplane; Certification of
Cooktops
Federal Aviation
Administration (FAA), DOT.
ACTION: Final special conditions; request
for comments.
AGENCY:
These special conditions are
issued for the Boeing Model 747–2G4B
series airplane. This airplane, as
modified by Greenpoint Technologies,
Inc., will have a novel or unusual design
feature associated with the replacement
and re-certification of existing cooktops
with advanced technology induction
coil cooktops in the main deck galleys
on two Boeing Model 747–2G4B
airplanes. The proposed modification is
limited to removing the existing
cooktops and replacing them with new
technology cooktops. No changes to the
galley surfaces, smoke detection system,
ventilation system, warning systems,
and fire suppression systems are
included in this modification. The
applicable airworthiness regulations do
not contain adequate or appropriate
safety standards for this design feature.
These special conditions contain the
additional safety standards that the
Administrator considers necessary to
establish a level of safety equivalent to
that established by the existing
airworthiness standards.
DATES: The effective date of these
special conditions is March 22, 2011.
We must receive your comments by
April 28, 2011.
ADDRESSES: You must mail two copies
of your comments to: Federal Aviation
Administration, Transport Airplane
Directorate, Attn: Rules Docket (ANM–
113), Docket No. NM452, 1601 Lind
Avenue, SW., Renton, Washington
98057–3356. You may deliver two
copies to the Transport Airplane
Directorate at the above address. You
must mark your comments: Docket No.
NM452. You can inspect comments in
the Rules Docket weekdays, except
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SUMMARY:
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13:46 Mar 28, 2011
Jkt 223001
Federal holidays, between 7:30 a.m. and
4 p.m.
FOR FURTHER INFORMATION CONTACT:
Jayson Claar, FAA, Airframe/Cabin
Safety Branch, ANM–115, Transport
Airplane Directorate, Aircraft
Certification Service, 1601 Lind
Avenue, SW., Renton, Washington
98057–3356; telephone (425) 227–2194;
facsimile (425) 227–1320.
SUPPLEMENTARY INFORMATION:
The FAA has determined that notice
of, and opportunity for prior public
comment on, these special conditions is
impracticable because these procedures
would significantly delay issuance of
the design approval and thus delivery of
the affected airplanes. 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.
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 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.
You can inspect the docket 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 us to acknowledge receipt
of your comments on this proposal,
include with your comments a selfaddressed, stamped postcard on which
you have written the docket number.
We will stamp the date on the postcard
and mail it back to you.
Background
On July 20, 2010, Greenpoint
Technologies, Inc., applied for a
Supplemental Type Certificate (STC) for
the replacement of existing cooktops in
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the Boeing Model 747–2G4B airplane.
The Boeing Model 747–2G4B currently
approved under Type Certificate No.
A20WE, is a Model 747–200 series
airplane with four CF6–80C2B1 engines.
The Model 747–200 series airplane is an
extended range passenger version of the
Model 747–100 airplanes with changes
to increase its strength and fuel
capacity.
The modification incorporates the
installation of an electrically heated
surface, called a cooktop. Cooktops
introduce high heat, smoke, and the
possibility of fire into the passenger
cabin environment. These potential
hazards to the airplane and its
occupants must be satisfactorily
addressed. Since existing airworthiness
regulations do not contain safety
standards addressing cooktops, special
conditions are therefore needed.
Type Certification Basis
Under the provisions of 14 CFR
21.101, Greenpoint Technologies Inc.,
must show that the Boeing Model 747–
2G4B, as changed, continues to meet the
applicable provisions of the regulations
incorporated by reference in Type
Certification No. A20WE, 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 regulations
incorporated by reference in Type
Certificate No. A20WE are part 25, as
amended by Amendments 25–1 through
25–8, with reversions to earlier
amendments, voluntary compliance to
later amendments, special conditions,
equivalent safety findings, and
exemptions listed in the type certificate
data sheet.
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 Boeing Model 747–2G4B 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 applicant apply
for a supplemental type certificate to
modify any other model included on the
same type certificate to incorporate the
same novel or unusual design features,
the special conditions would also apply
to the other model.
In addition to the applicable
airworthiness regulations and special
conditions, the Boeing Model 747–2G4B
must comply with the fuel vent and
exhaust emission requirements of 14
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Federal Register / Vol. 76, No. 60 / Tuesday, March 29, 2011 / Rules and Regulations
Greenpoint Technologies, Inc., apply at
a later date for a supplemental type
certificate to modify any other model
included on the same type certificate to
incorporate the same novel or unusual
design feature, these special conditions
would apply to that model as well.
Novel or Unusual Design Features
The modification of the Boeing Model
747–2G4B airplane will include
installation of cooktops in the passenger
cabin. Cooktops introduce high heat,
smoke, and the possibility of fire into
the passenger cabin environment. The
current airworthiness standards of part
25 do not contain adequate or
appropriate safety standards to protect
the airplane and its occupants from
these potential hazards. Accordingly,
this system is considered to be a novel
or unusual design feature.
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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 § 11.38, and they become part of
the type-certification basis under
§ 21.101.
Conclusion
This action affects only certain novel
or unusual design features on the
Boeing Model 747–2G4B airplane
modified by Greenpoint Technologies,
Inc. It is not a rule of general
applicability and it affects only the
applicant who applied to the FAA for
approval of these features on the
airplane.
Under standard practice, the effective
date of final special conditions would
be 30 days after the date of publication
in the Federal Register; however, as the
certification date of the Boeing Model
747–2G4B in imminent, the FAA finds
that good cause exists to make these
special conditions effective upon
issuance.
Discussion
Currently, ovens are the prevailing
means of heating food on airplanes.
Ovens are characterized by an enclosure
that contains both the heat source and
the food being heated. The hazards
represented by ovens are thus
inherently limited, and are well
understood through years of service
experience. Cooktops, on the other
hand, are characterized by exposed heat
sources and the presence of relatively
unrestrained hot cookware and heated
food, which may represent
unprecedented hazards to both
occupants and the airplane. Cooktops
could have serious passenger and
airplane safety implications if
appropriate requirements are not
established for their installation and
use. These special conditions apply to
cooktops with electrically powered
burners. The use of an open flame
cooktop (for example natural gas) is
beyond the scope of these special
conditions and would require separate
rulemaking action. The requirements
identified in these special conditions
are in addition to those considerations
identified in Advisory Circular (AC)
20–168, ‘‘Certification Guidance for
Installation of Non-Essential, NonRequired Aircraft Cabin Systems &
Equipment (CS&E),’’ and those in AC
25–17A, ‘‘Transport Airplane Cabin
Interiors Crashworthiness Handbook.’’
The intent of these special conditions is
to provide a level of safety that is
consistent with that on similar airplanes
without cooktops.
Applicability
As discussed above, these special
conditions are applicable to the Boeing
Model 747–2G4B airplane modified by
Greenpoint Technologies, Inc. Should
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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 type
certification basis for Boeing Model
747–2G4B airplanes modified by
Greenpoint Technologies, Inc.:
Cooktop Installations With ElectricallyPowered Burner
1. Means, such as conspicuous
burner-on indicators, physical barriers,
or handholds, must be installed to
minimize the potential for inadvertent
personnel contact with hot surfaces of
both the cooktop and cookware.
Conditions of turbulence must be
considered.
2. Sufficient design means must be
included to restrain cookware while in
place on the cooktop, as well as
representative contents, e.g., soup,
sauces, etc., from the effects of flight
loads and turbulence. Restraints must be
provided to preclude hazardous
movement of cookware and contents.
These restraints must accommodate any
cookware that is identified for use with
the cooktop. Restraints must be
designed to be easily utilized and
effective in service. The cookware
restraint system should also be designed
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17335
so that it will not be easily disabled,
thus rendering it unusable. Placarding
must be installed which prohibits the
use of cookware that can not be
accommodated by the restraint system.
3. Placarding must be installed which
prohibits the use of cooktops (i.e.,
power on any burner) during taxi,
takeoff, and landing (TTL).
4. Means must be provided to address
the possibility of a fire occurring on or
in the immediate vicinity of the
cooktop. Two acceptable means of
complying with this requirement are as
follows:
a. Placarding must be installed that
prohibits any burner from being
powered when the cooktop is
unattended (Note: That this would
prohibit a single person from cooking on
the cooktop and intermittently serving
food to passengers while any burner is
powered), and a fire detector must be
installed in the vicinity of the cooktop
which provides an audible warning in
the passenger cabin, or galley only
audible warning per the airworthiness
approval of the Boeing Model 747–2G4B
aircraft with existing design safety
features, compartment and a fire
extinguisher of appropriate size and
extinguishing agent must be installed in
the immediate vicinity of the cooktop.
Access to the extinguisher must not be
blocked by a fire on or around the
cooktop. One of the fire extinguishers
required by § 25.851 may be used to
satisfy this requirement if the total
complement of extinguishers can be
evenly distributed throughout the cabin.
If this is not possible, then the
extinguisher in the galley area would be
additional, or
b. An automatic, thermally activated
fire suppression system must be
installed to extinguish a fire at the
cooktop and immediately adjacent
surfaces. The agent used in the system
must be an approved total flooding
agent suitable for use in an occupied
area. The fire suppression system must
have a manual override. The automatic
activation of the fire suppression system
must also automatically shut off power
to the cooktop.
5. Means must be provided to address
the surfaces of the galley surrounding
the cooktop, which could be exposed to
a fire on the cooktop surface or in
cookware on the cooktop. Two
acceptable means of complying with
this requirement are as follows:
a. The materials must be constructed
of materials that comply with the
flammability requirements of Part III of
Appendix F of part 25. This requirement
is in addition to the flammability
requirements typically required of the
materials in these galley surfaces.
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17336
Federal Register / Vol. 76, No. 60 / Tuesday, March 29, 2011 / Rules and Regulations
During the selection of these materials,
consideration must also be given to
ensure that the flammability
characteristics of the materials will not
be adversely affected by the use of
cleaning agents and utensils used to
remove cooking stains.
b. Retain the surface materials of the
existing galleys surrounding the
cooktops per the airworthiness approval
of the Boeing 747–2G4B model aircraft
flammability requirements of Part I
(§ 25.853 Amendment 25–59) of
Appendix F of part 25. The use of the
existing flammability approvals of the
galley per the Type Certificate (A20WE)
certification basis for the Boeing 747–
2G4B model is acceptable as this
modification consists of structural
changes strictly to accommodate the
installation of new cooktops.
6. The cooktop must be ventilated
with a system independent of the
airplane cabin and cargo ventilation
system. Procedures and time intervals
must be established to inspect and clean
or replace the ventilation system to
prevent a fire hazard from the
accumulation of flammable oils and be
included in the instructions for
continued airworthiness. The
ventilation system ducting must be
protected by a flame arrestor or an
automatic shutoff valve in the overrange top ventilation system in lieu of
the flame arrestor. [Note: The applicant
may find additional useful information
in Society of Automotive Engineers,
Aerospace Recommended Practice 85,
Rev. E, entitled ‘‘Air Conditioning
Systems for Subsonic Airplanes,’’ dated
August 1, 1991.]
7. Means must be provided to contain
spilled foods or fluids in a manner that
will prevent the creation of a slipping
hazard to occupants and will not lead to
the loss of structural strength due to
corrosion.
8. Cooktop installations must provide
adequate space for the user to
immediately escape a hazardous
cooktop condition.
9. A means to shut off power to the
cooktop must be provided at the galley
containing the cooktop and in the
cockpit. If additional switches are
introduced in the cockpit, revisions to
smoke or fire emergency procedures of
the AFM will be required.
Issued in Renton, Washington, on March
22, 2011.
K.C. Yanamura,
Assistant Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2011–7343 Filed 3–28–11; 8:45 am]
BILLING CODE 4910–13–P
VerDate Mar<15>2010
17:37 Mar 28, 2011
Jkt 223001
DEPARTMENT OF HEALTH AND
HUMAN SERVICES
congressional review requirements in 5
U.S.C. 801–808.
Food and Drug Administration
List of Subjects in 21 CFR Parts 520,
522, 526, and 529
21 CFR Parts 520, 522, 526, and 529
Animal drugs.
Therefore, under the Federal Food,
Drug, and Cosmetic Act and under the
authority delegated to the Commissioner
of Food and Drugs and redelegated to
the Center for Veterinary Medicine,
21 CFR parts 520, 522, 526, and 529 are
amended as follows:
[Docket No. FDA–2011–N–0003]
New Animal Drugs; Amikacin Sulfate,
Ampicillin Trihydrate, Ceftiofur
Hydrochloride, Cephapirin Benzathine,
Chlortetracycline, Fenbendazole,
Formalin, Furosemide, Glucose/
Glycine/Electrolyte, Pyrantel Pamoate,
Sulfadimethoxine, Sulfamethazine, and
Tetracycline
AGENCY:
Food and Drug Administration,
HHS.
Final rule; correcting
amendments.
PART 520—ORAL DOSAGE FORM
NEW ANIMAL DRUGS
1. The authority citation for 21 CFR
part 520 continues to read as follows:
■
ACTION:
Authority: 21 U.S.C. 360b.
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2. In § 520.550, revise the section
heading and paragraph (a), the first
sentence in paragraph (c)(1), and
paragraph (c)(3) to read as follows:
■
The Food and Drug
Administration (FDA) is amending the
animal drug regulations to reflect
revised human food safety warnings or
updated pathogen nomenclature on
dosage form new animal drug product
labeling that have not been codified.
The regulations are also being amended
to correct the wording of certain other
conditions of use, to correct minor
errors, and to revise some sections to
reflect a current format. These actions
are being taken to comply with the
Federal Food, Drug, and Cosmetic Act
(FD&C Act) and to improve the accuracy
and readability of the regulations.
DATES: This rule is effective March 29,
2011.
FOR FURTHER INFORMATION CONTACT:
George K. Haibel, Center for Veterinary
Medicine (HFV–6), Food and Drug
Administration, 7519 Standish Pl.,
Rockville, MD 20855, 240–276–9019,
e-mail: george.haibel@fda.hhs.gov.
SUPPLEMENTARY INFORMATION: FDA has
found that the animal drug regulations
do not reflect certain human food safety
warnings or the scientific nomenclature
of pathogens that have been updated on
labeling of various dosage form new
animal drug products. At this time, the
regulations are being amended to reflect
approved labeling. The regulations are
also being amended to correct the
wording of certain other conditions of
use and to correct minor errors. As the
opportunity has presented itself, some
sections have been revised to a current
format. These actions are being taken to
comply with the FD&C Act and to
improve the accuracy and readability of
the regulations.
This rule does not meet the definition
of ‘‘rule’’ in 5 U.S.C. 804(3)(A) because
it is a rule of ‘‘particular applicability.’’
Therefore, it is not subject to the
SUMMARY:
§ 520.550
Glucose/glycine/electrolyte.
(a) Specifications. The product is
distributed in packets each of which
contains the following ingredients:
Sodium chloride 8.82 grams, potassium
phosphate 4.20 grams, citric acid
anhydrous 0.5 gram, potassium citrate
0.12 gram, aminoacetic acid (glycine)
6.36 grams, and glucose 44.0 grams.
(c) * * *
(1) Glucose/glycine/electrolyte is
indicated for use in the control of
dehydration associated with diarrhea
(scours) in calves.* * *
*
*
*
*
*
(3) The product should not be used in
animals with severe dehydration (down,
comatose, or in a state of shock). Such
animals need intravenous therapy. A
veterinarian should be consulted in
severely scouring calves. The product is
not nutritionally complete if
administered by itself for long periods
of time. It should not be administered
beyond the recommended treatment
period without the addition of milk or
milk replacer.
■ 3. In § 520.905a, revise paragraphs
(e)(2)(i), (e)(2)(iii), (e)(3)(i), and (e)(3)(iii)
to read as follows:
§ 520.905a
Fenbendazole suspension.
*
*
*
*
*
(e) * * *
(2) * * *
(i) Amount. Administer orally 5 mg/
kg of body weight (2.3 mg/lb).
Retreatment may be needed after 4 to
6 weeks.
*
*
*
*
*
(iii) Limitations. Cattle must not be
slaughtered within 8 days following last
treatment. A withdrawal period has not
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]]>Agencies
[Federal Register Volume 76, Number 60 (Tuesday, March 29, 2011)]
[Rules and Regulations]
[Pages 17334-17336]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-7343]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No. NM452; Notice No. 25-424-SC]
Special Conditions: Boeing Model 747-2G4B Airplane; Certification
of Cooktops
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final special conditions; request for comments.
-----------------------------------------------------------------------
SUMMARY: These special conditions are issued for the Boeing Model 747-
2G4B series airplane. This airplane, as modified by Greenpoint
Technologies, Inc., will have a novel or unusual design feature
associated with the replacement and re-certification of existing
cooktops with advanced technology induction coil cooktops in the main
deck galleys on two Boeing Model 747-2G4B airplanes. The proposed
modification is limited to removing the existing cooktops and replacing
them with new technology cooktops. No changes to the galley surfaces,
smoke detection system, ventilation system, warning systems, and fire
suppression systems are included in this modification. The applicable
airworthiness regulations do not contain adequate or appropriate safety
standards for this design feature. These special conditions contain the
additional safety standards that the Administrator considers necessary
to establish a level of safety equivalent to that established by the
existing airworthiness standards.
DATES: The effective date of these special conditions is March 22,
2011. We must receive your comments by April 28, 2011.
ADDRESSES: You must mail two copies of your comments to: Federal
Aviation Administration, Transport Airplane Directorate, Attn: Rules
Docket (ANM-113), Docket No. NM452, 1601 Lind Avenue, SW., Renton,
Washington 98057-3356. You may deliver two copies to the Transport
Airplane Directorate at the above address. You must mark your comments:
Docket No. NM452. You can inspect comments in the Rules Docket
weekdays, except Federal holidays, between 7:30 a.m. and 4 p.m.
FOR FURTHER INFORMATION CONTACT: Jayson Claar, FAA, Airframe/Cabin
Safety Branch, ANM-115, Transport Airplane Directorate, Aircraft
Certification Service, 1601 Lind Avenue, SW., Renton, Washington 98057-
3356; telephone (425) 227-2194; facsimile (425) 227-1320.
SUPPLEMENTARY INFORMATION:
The FAA has determined that notice of, and opportunity for prior
public comment on, these special conditions is impracticable because
these procedures would significantly delay issuance of the design
approval and thus delivery of the affected airplanes. 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.
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 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. You can inspect the docket 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 us to acknowledge receipt of your comments on this
proposal, include with your comments a self-addressed, stamped postcard
on which you have written the docket number. We will stamp the date on
the postcard and mail it back to you.
Background
On July 20, 2010, Greenpoint Technologies, Inc., applied for a
Supplemental Type Certificate (STC) for the replacement of existing
cooktops in the Boeing Model 747-2G4B airplane. The Boeing Model 747-
2G4B currently approved under Type Certificate No. A20WE, is a Model
747-200 series airplane with four CF6-80C2B1 engines. The Model 747-200
series airplane is an extended range passenger version of the Model
747-100 airplanes with changes to increase its strength and fuel
capacity.
The modification incorporates the installation of an electrically
heated surface, called a cooktop. Cooktops introduce high heat, smoke,
and the possibility of fire into the passenger cabin environment. These
potential hazards to the airplane and its occupants must be
satisfactorily addressed. Since existing airworthiness regulations do
not contain safety standards addressing cooktops, special conditions
are therefore needed.
Type Certification Basis
Under the provisions of 14 CFR 21.101, Greenpoint Technologies
Inc., must show that the Boeing Model 747-2G4B, as changed, continues
to meet the applicable provisions of the regulations incorporated by
reference in Type Certification No. A20WE, 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
regulations incorporated by reference in Type Certificate No. A20WE are
part 25, as amended by Amendments 25-1 through 25-8, with reversions to
earlier amendments, voluntary compliance to later amendments, special
conditions, equivalent safety findings, and exemptions listed in the
type certificate data sheet.
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 Boeing Model 747-2G4B 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 applicant apply for a supplemental type
certificate to modify any other model included on the same type
certificate to incorporate the same novel or unusual design features,
the special conditions would also apply to the other model.
In addition to the applicable airworthiness regulations and special
conditions, the Boeing Model 747-2G4B must comply with the fuel vent
and exhaust emission requirements of 14
[[Page 17335]]
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. 21.101.
Novel or Unusual Design Features
The modification of the Boeing Model 747-2G4B airplane will include
installation of cooktops in the passenger cabin. Cooktops introduce
high heat, smoke, and the possibility of fire into the passenger cabin
environment. The current airworthiness standards of part 25 do not
contain adequate or appropriate safety standards to protect the
airplane and its occupants from these potential hazards. Accordingly,
this system is considered to be a novel or unusual design feature.
Discussion
Currently, ovens are the prevailing means of heating food on
airplanes. Ovens are characterized by an enclosure that contains both
the heat source and the food being heated. The hazards represented by
ovens are thus inherently limited, and are well understood through
years of service experience. Cooktops, on the other hand, are
characterized by exposed heat sources and the presence of relatively
unrestrained hot cookware and heated food, which may represent
unprecedented hazards to both occupants and the airplane. Cooktops
could have serious passenger and airplane safety implications if
appropriate requirements are not established for their installation and
use. These special conditions apply to cooktops with electrically
powered burners. The use of an open flame cooktop (for example natural
gas) is beyond the scope of these special conditions and would require
separate rulemaking action. The requirements identified in these
special conditions are in addition to those considerations identified
in Advisory Circular (AC) 20-168, ``Certification Guidance for
Installation of Non-Essential, Non-Required Aircraft Cabin Systems &
Equipment (CS&E),'' and those in AC 25-17A, ``Transport Airplane Cabin
Interiors Crashworthiness Handbook.'' The intent of these special
conditions is to provide a level of safety that is consistent with that
on similar airplanes without cooktops.
Applicability
As discussed above, these special conditions are applicable to the
Boeing Model 747-2G4B airplane modified by Greenpoint Technologies,
Inc. Should Greenpoint Technologies, Inc., apply at a later date for a
supplemental type certificate to modify any other model included on the
same type certificate to incorporate the same novel or unusual design
feature, these special conditions would apply to that model as well.
Conclusion
This action affects only certain novel or unusual design features
on the Boeing Model 747-2G4B airplane modified by Greenpoint
Technologies, Inc. It is not a rule of general applicability and it
affects only the applicant who applied to the FAA for approval of these
features on the airplane.
Under standard practice, the effective date of final special
conditions would be 30 days after the date of publication in the
Federal Register; however, as the certification date of the Boeing
Model 747-2G4B in imminent, the FAA finds that good cause exists to
make these special conditions effective upon issuance.
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 type certification basis for Boeing Model 747-2G4B airplanes
modified by Greenpoint Technologies, Inc.:
Cooktop Installations With Electrically-Powered Burner
1. Means, such as conspicuous burner-on indicators, physical
barriers, or handholds, must be installed to minimize the potential for
inadvertent personnel contact with hot surfaces of both the cooktop and
cookware. Conditions of turbulence must be considered.
2. Sufficient design means must be included to restrain cookware
while in place on the cooktop, as well as representative contents,
e.g., soup, sauces, etc., from the effects of flight loads and
turbulence. Restraints must be provided to preclude hazardous movement
of cookware and contents. These restraints must accommodate any
cookware that is identified for use with the cooktop. Restraints must
be designed to be easily utilized and effective in service. The
cookware restraint system should also be designed so that it will not
be easily disabled, thus rendering it unusable. Placarding must be
installed which prohibits the use of cookware that can not be
accommodated by the restraint system.
3. Placarding must be installed which prohibits the use of cooktops
(i.e., power on any burner) during taxi, takeoff, and landing (TTL).
4. Means must be provided to address the possibility of a fire
occurring on or in the immediate vicinity of the cooktop. Two
acceptable means of complying with this requirement are as follows:
a. Placarding must be installed that prohibits any burner from
being powered when the cooktop is unattended (Note: That this would
prohibit a single person from cooking on the cooktop and intermittently
serving food to passengers while any burner is powered), and a fire
detector must be installed in the vicinity of the cooktop which
provides an audible warning in the passenger cabin, or galley only
audible warning per the airworthiness approval of the Boeing Model 747-
2G4B aircraft with existing design safety features, compartment and a
fire extinguisher of appropriate size and extinguishing agent must be
installed in the immediate vicinity of the cooktop. Access to the
extinguisher must not be blocked by a fire on or around the cooktop.
One of the fire extinguishers required by Sec. 25.851 may be used to
satisfy this requirement if the total complement of extinguishers can
be evenly distributed throughout the cabin. If this is not possible,
then the extinguisher in the galley area would be additional, or
b. An automatic, thermally activated fire suppression system must
be installed to extinguish a fire at the cooktop and immediately
adjacent surfaces. The agent used in the system must be an approved
total flooding agent suitable for use in an occupied area. The fire
suppression system must have a manual override. The automatic
activation of the fire suppression system must also automatically shut
off power to the cooktop.
5. Means must be provided to address the surfaces of the galley
surrounding the cooktop, which could be exposed to a fire on the
cooktop surface or in cookware on the cooktop. Two acceptable means of
complying with this requirement are as follows:
a. The materials must be constructed of materials that comply with
the flammability requirements of Part III of Appendix F of part 25.
This requirement is in addition to the flammability requirements
typically required of the materials in these galley surfaces.
[[Page 17336]]
During the selection of these materials, consideration must also be
given to ensure that the flammability characteristics of the materials
will not be adversely affected by the use of cleaning agents and
utensils used to remove cooking stains.
b. Retain the surface materials of the existing galleys surrounding
the cooktops per the airworthiness approval of the Boeing 747-2G4B
model aircraft flammability requirements of Part I (Sec. 25.853
Amendment 25-59) of Appendix F of part 25. The use of the existing
flammability approvals of the galley per the Type Certificate (A20WE)
certification basis for the Boeing 747-2G4B model is acceptable as this
modification consists of structural changes strictly to accommodate the
installation of new cooktops.
6. The cooktop must be ventilated with a system independent of the
airplane cabin and cargo ventilation system. Procedures and time
intervals must be established to inspect and clean or replace the
ventilation system to prevent a fire hazard from the accumulation of
flammable oils and be included in the instructions for continued
airworthiness. The ventilation system ducting must be protected by a
flame arrestor or an automatic shutoff valve in the over-range top
ventilation system in lieu of the flame arrestor. [Note: The applicant
may find additional useful information in Society of Automotive
Engineers, Aerospace Recommended Practice 85, Rev. E, entitled ``Air
Conditioning Systems for Subsonic Airplanes,'' dated August 1, 1991.]
7. Means must be provided to contain spilled foods or fluids in a
manner that will prevent the creation of a slipping hazard to occupants
and will not lead to the loss of structural strength due to corrosion.
8. Cooktop installations must provide adequate space for the user
to immediately escape a hazardous cooktop condition.
9. A means to shut off power to the cooktop must be provided at the
galley containing the cooktop and in the cockpit. If additional
switches are introduced in the cockpit, revisions to smoke or fire
emergency procedures of the AFM will be required.
Issued in Renton, Washington, on March 22, 2011.
K.C. Yanamura,
Assistant Manager, Transport Airplane Directorate, Aircraft
Certification Service.
[FR Doc. 2011-7343 Filed 3-28-11; 8:45 am]
BILLING CODE 4910-13-P
