Special Conditions: The Boeing Company Model 747-8 Series Airplane; Certification of Cooktops, 43037-43039 [2019-17696]

Download as PDF 43037 Rules and Regulations Federal Register Vol. 84, No. 161 Tuesday, August 20, 2019 This section of the FEDERAL REGISTER contains regulatory documents having general applicability and legal effect, most of which are keyed to and codified in the Code of Federal Regulations, which is published under 50 titles pursuant to 44 U.S.C. 1510. The Code of Federal Regulations is sold by the Superintendent of Documents. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 25 [Docket No. FAA–2019–0632; Special Conditions No. 25–19–08–SC] Special Conditions: The Boeing Company Model 747–8 Series Airplane; Certification of Cooktops Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions; request for comments. jbell on DSK3GLQ082PROD with RULES AGENCY: SUMMARY: These special conditions are issued for the The Boeing Company (Boeing) Model 747–8 series airplane. This airplane, as modified by Boeing 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 associated with the replacement and re-certification of existing cooktops with advanced technology induction coil cooktops in the main deck galleys on a Boeing Model 747–8 series airplane. 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: This action is effective on The Boeing Company on August 20, 2019. Send comments on or before October 4, 2019. VerDate Sep<11>2014 15:49 Aug 19, 2019 Jkt 247001 Send comments identified by Docket No. FAA–2019–0632 using any of the following methods: • Federal eRegulations Portal: Go to http://www.regulations.gov/ and follow the online instructions for sending your comments electronically. • Mail: Send comments to Docket Operations, M–30, U.S. Department of Transportation (DOT), 1200 New Jersey Avenue SE, Room W12–140, West Building Ground Floor, Washington, DC, 20590–0001. • Hand Delivery or Courier: Take comments to Docket Operations in Room W12–140 of the West Building Ground Floor at 1200 New Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. • Fax: Fax comments to Docket Operations at 202–493–2251. Privacy: The FAA will post all comments it receives, without change, to http://www.regulations.gov/, including any personal information the commenter provides. Using the search function of the docket website, anyone can find and read the electronic form of all comments received into any FAA docket, including the name of the individual sending the comment (or signing the comment for an association, business, labor union, etc.). DOT’s complete Privacy Act Statement can be found in the Federal Register published on April 11, 2000 (65 FR 19477–19478). Docket: Background documents or comments received may be read at http://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: Alan Sinclair, FAA, Airframe/Cabin Safety Branch, AIR–675, Transport Standards Branch, Policy and Innovation Division, Aircraft Certification Service, Federal Aviation Administration, 2200 South 216th Street, Des Moines, Washington 98198; telephone and fax 206–231–3215; email alan.sinclair@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 ADDRESSES: PO 00000 Frm 00001 Fmt 4700 Sfmt 4700 comments received. Therefore, the FAA has determined that prior public notice and comment are unnecessary, and finds that, for the same reason, good cause exists for adopting these special conditions upon publication in the Federal Register. Comments Invited We invite interested people to take part in this rulemaking by sending written comments, data, or views. The most helpful comments reference a specific portion of the special conditions, explain the reason for any recommended change, and include supporting data. We will consider all comments we receive by the closing date for comments. We may change these special conditions based on the comments we receive. Background On July 2, 2018, Boeing applied for a supplemental type certificate for the replacement of existing cooktops in the Boeing Model 747–8 series airplane. The Boeing Model 747–8 currently approved under Type Certificate No. A20WE, is an extended range passenger version of the Boeing Model 747–400 series airplanes with four General Electric engines having 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 title 14, Code of Federal Regulations (14 CFR) 21.101, Boeing must show that the Model 747– 8 series airplane, as changed, continues to meet the applicable provisions of the regulations listed in Type Certificate No. A20WE or the applicable regulations in effect on the date of application for the change, except for earlier amendments as agreed upon by the FAA. If the Administrator finds that the applicable airworthiness regulations (i.e., 14 CFR part 25) do not contain adequate or appropriate safety standards E:\FR\FM\20AUR1.SGM 20AUR1 43038 Federal Register / Vol. 84, No. 161 / Tuesday, August 20, 2019 / Rules and Regulations for the Boeing Model 747–8 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 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 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 Boeing Model 747–8 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 § 11.38, and they become part of the type certification basis under § 21.101. jbell on DSK3GLQ082PROD with RULES Novel or Unusual Design Features The modification of the Boeing Model 747–8 series airplane will incorporate a novel or unusual design feature, which is the 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. 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 VerDate Sep<11>2014 15:49 Aug 19, 2019 Jkt 247001 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), dated July 22, 2010, and those in AC 25–17A, Transport Airplane Cabin Interiors Crashworthiness Handbook, Change 1, dated May 24, 2016. The intent of these special conditions is to provide a level of safety that is consistent with that on similar airplanes without cooktops. 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 Boeing 747–8 series airplane as modified by Boeing. Should Boeing apply at a later date for a supplemental type certificate to modify any other model included on Type Certificate No. A20WE to incorporate the same novel or unusual design feature, these special conditions would apply to that model as well. Conclusion This action affects only a certain novel or unusual design feature on the Boeing Model 747–8 series airplane. It is not a rule of general applicability and affects only the applicant who applied to the FAA for approval of these features on the airplane. 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 the Boeing Model 747–8 series airplane, as modified by The Boeing Company: 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. PO 00000 Frm 00002 Fmt 4700 Sfmt 4700 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. 4. One of the following options must be provided to address the possibility of a fire occurring on or in the immediate vicinity of the cooktop: 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). A fire detector must be installed in the vicinity of the cooktop, which provides an audible warning in the passenger cabin, 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. 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. 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 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. E:\FR\FM\20AUR1.SGM 20AUR1 Federal Register / Vol. 84, No. 161 / Tuesday, August 20, 2019 / 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. 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. [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. 10. If the cooktop is required to have a lid to enclose the cooktop, there must be a means to automatically shut off power to the cooktop when the lid is enclosed. Issued in Des Moines, Washington, on August 13, 2019 Mary A. Schooley, Acting Manager, Transport Standards Branch, Policy and Innovation Division, Aircraft Certification Service. [FR Doc. 2019–17696 Filed 8–19–19; 8:45 am] jbell on DSK3GLQ082PROD with RULES BILLING CODE 4910–13–P VerDate Sep<11>2014 15:49 Aug 19, 2019 Jkt 247001 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2019–0607; Product Identifier 2019–NM–135–AD; Amendment 39–19709; AD 2019–16–06] RIN 2120–AA64 Airworthiness Directives; Airbus SAS Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. AGENCY: SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A320–251N and A320–271N airplanes. This AD was prompted by analysis and laboratory testing of the behavior of the flight control laws, which identified reduced efficiency of the angle of attack (AoA) protection that may result in excessive pitch attitude in certain configurations in combination with specific maneuvers commanded by the flight crew. This AD requires revising the existing airplane flight manual (AFM) to incorporate operational limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD becomes effective September 4, 2019. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of September 4, 2019. The FAA must receive comments on this AD by October 4, 2019. 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 http://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: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For the material incorporated by reference (IBR) in this AD, contact the PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 43039 EASA, at Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 89990 1000; email ADs@ easa.europa.eu; internet www.easa.europa.eu. You may find this IBR material on the EASA website at https://ad.easa.europa.eu. You may view this IBR material at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. It is also available in the AD docket on the internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2019– 0607. Examining the AD Docket You may examine the AD docket on the internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2019– 0607; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations is listed above. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Sanjay Ralhan, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206–231–3223. SUPPLEMENTARY INFORMATION: Discussion The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2019–0189, dated July 31, 2019 (‘‘EASA AD 2019–0189’’) (also referred to as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to correct an unsafe condition for all Airbus SAS Model A320–251N and A320–271N airplanes. The MCAI states: Analysis and laboratory testing of the behaviour of the flight control laws of the A320neo identified a reduced efficiency of the angle of attack protection when the aeroplane is set in certain flight configurations and in combination with specific manoeuvres commanded by the flight crew, as described through Section 2 of Airbus Flight Operations Transmission 999.0059/19. This condition, although never encountered during operations, if not corrected, could lead to excessive pitch attitude, possibly resulting in increased flight crew workload. To address this potential unsafe condition, Airbus issued the AFM TR [temporary revision], limiting the centre of gravity E:\FR\FM\20AUR1.SGM 20AUR1

Agencies

[Federal Register Volume 84, Number 161 (Tuesday, August 20, 2019)]
[Rules and Regulations]
[Pages 43037-43039]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-17696]



========================================================================
Rules and Regulations
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains regulatory documents 
having general applicability and legal effect, most of which are keyed 
to and codified in the Code of Federal Regulations, which is published 
under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents. 

========================================================================


Federal Register / Vol. 84, No. 161 / Tuesday, August 20, 2019 / 
Rules and Regulations

[[Page 43037]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 25

[Docket No. FAA-2019-0632; Special Conditions No. 25-19-08-SC]


Special Conditions: The Boeing Company Model 747-8 Series 
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 The Boeing Company 
(Boeing) Model 747-8 series airplane. This airplane, as modified by 
Boeing 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 associated with 
the replacement and re-certification of existing cooktops with advanced 
technology induction coil cooktops in the main deck galleys on a Boeing 
Model 747-8 series airplane. 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: This action is effective on The Boeing Company on August 20, 
2019. Send comments on or before October 4, 2019.

ADDRESSES: Send comments identified by Docket No. FAA-2019-0632 using 
any of the following methods:
     Federal eRegulations Portal: Go to http://www.regulations.gov/ and follow the online instructions for sending 
your comments electronically.
     Mail: Send comments to Docket Operations, M-30, U.S. 
Department of Transportation (DOT), 1200 New Jersey Avenue SE, Room 
W12-140, West Building Ground Floor, Washington, DC, 20590-0001.
     Hand Delivery or Courier: Take comments to Docket 
Operations in Room W12-140 of the West Building Ground Floor at 1200 
New Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday 
through Friday, except Federal holidays.
     Fax: Fax comments to Docket Operations at 202-493-2251.
    Privacy: The FAA will post all comments it receives, without 
change, to http://www.regulations.gov/, including any personal 
information the commenter provides. Using the search function of the 
docket website, anyone can find and read the electronic form of all 
comments received into any FAA docket, including the name of the 
individual sending the comment (or signing the comment for an 
association, business, labor union, etc.). DOT's complete Privacy Act 
Statement can be found in the Federal Register published on April 11, 
2000 (65 FR 19477-19478).
    Docket: Background documents or comments received may be read at 
http://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: Alan Sinclair, FAA, Airframe/Cabin 
Safety Branch, AIR-675, Transport Standards Branch, Policy and 
Innovation Division, Aircraft Certification Service, Federal Aviation 
Administration, 2200 South 216th Street, Des Moines, Washington 98198; 
telephone and fax 206-231-3215; 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 has determined that prior public notice and comment 
are unnecessary, and finds that, for the same reason, good cause exists 
for adopting these special conditions upon publication in the Federal 
Register.

Comments Invited

    We invite interested people to take part in this rulemaking by 
sending written comments, data, or views. The most helpful comments 
reference a specific portion of the special conditions, explain the 
reason for any recommended change, and include supporting data.
    We will consider all comments we receive by the closing date for 
comments. We may change these special conditions based on the comments 
we receive.

Background

    On July 2, 2018, Boeing applied for a supplemental type certificate 
for the replacement of existing cooktops in the Boeing Model 747-8 
series airplane. The Boeing Model 747-8 currently approved under Type 
Certificate No. A20WE, is an extended range passenger version of the 
Boeing Model 747-400 series airplanes with four General Electric 
engines having 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 title 14, Code of Federal Regulations (14 
CFR) 21.101, Boeing must show that the Model 747-8 series airplane, as 
changed, continues to meet the applicable provisions of the regulations 
listed in Type Certificate No. A20WE or the applicable regulations in 
effect on the date of application for the change, except for earlier 
amendments as agreed upon by the FAA.
    If the Administrator finds that the applicable airworthiness 
regulations (i.e., 14 CFR part 25) do not contain adequate or 
appropriate safety standards

[[Page 43038]]

for the Boeing Model 747-8 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 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 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 Boeing Model 747-8 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.  21.101.

Novel or Unusual Design Features

    The modification of the Boeing Model 747-8 series airplane will 
incorporate a novel or unusual design feature, which is the 
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.

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), dated July 22, 2010, and those in AC 25-17A, 
Transport Airplane Cabin Interiors Crashworthiness Handbook, Change 1, 
dated May 24, 2016. The intent of these special conditions is to 
provide a level of safety that is consistent with that on similar 
airplanes without cooktops.
    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 
Boeing 747-8 series airplane as modified by Boeing. Should Boeing apply 
at a later date for a supplemental type certificate to modify any other 
model included on Type Certificate No. A20WE to incorporate the same 
novel or unusual design feature, these special conditions would apply 
to that model as well.

Conclusion

    This action affects only a certain novel or unusual design feature 
on the Boeing Model 747-8 series airplane. It is not a rule of general 
applicability and affects only the applicant who applied to the FAA for 
approval of these features on the airplane.

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 the Boeing Model 747-8 series 
airplane, as modified by The Boeing Company:

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.
    4. One of the following options must be provided to address the 
possibility of a fire occurring on or in the immediate vicinity of the 
cooktop:
    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). A fire 
detector must be installed in the vicinity of the cooktop, which 
provides an audible warning in the passenger cabin, 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.
    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. 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 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 43039]]

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.
    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. [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.
    10. If the cooktop is required to have a lid to enclose the 
cooktop, there must be a means to automatically shut off power to the 
cooktop when the lid is enclosed.

    Issued in Des Moines, Washington, on August 13, 2019
Mary A. Schooley,
Acting Manager, Transport Standards Branch, Policy and Innovation 
Division, Aircraft Certification Service.
[FR Doc. 2019-17696 Filed 8-19-19; 8:45 am]
BILLING CODE 4910-13-P